ifconfig: T2104: splt ifconfig.py into multiple files

18 files changed, 2468 insertions, 2183 deletions

diff --git a/python/setup.py b/python/setup.py
index 304ea5cb7..ac7d0b573 100644
--- a/python/setup.py
+++ b/python/setup.py
@@ -10,7 +10,7 @@ setup(
     license = "LGPLv2+",
     keywords = "vyos",
     url = "http://www.vyos.io",
-    packages=['vyos'],
+    packages=["vyos","vyos.ifconfig"],
     long_description="VyOS configuration libraries",
     classifiers=[
         "Development Status :: 4 - Beta",
diff --git a/python/vyos/ifconfig.py b/python/vyos/ifconfig.py
deleted file mode 100644
index c280b42af..000000000
--- a/python/vyos/ifconfig.py
+++ /dev/null
@@ -1,2181 +0,0 @@
-# Copyright 2019 VyOS maintainers and contributors <maintainers@vyos.io>
-#
-# This library is free software; you can redistribute it and/or
-# modify it under the terms of the GNU Lesser General Public
-# License as published by the Free Software Foundation; either
-# version 2.1 of the License, or (at your option) any later version.
-#
-# This library is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# Lesser General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public
-# License along with this library.  If not, see <http://www.gnu.org/licenses/>.
-
-import os
-import re
-import jinja2
-import json
-import glob
-import time
-from copy import deepcopy
-
-import vyos.interfaces
-
-from vyos.validate import *
-from vyos.config import Config
-from vyos import ConfigError
-
-from ipaddress import IPv4Network, IPv6Address
-from netifaces import ifaddresses, AF_INET, AF_INET6
-from subprocess import Popen, PIPE, STDOUT
-from time import sleep
-from os.path import isfile
-from tabulate import tabulate
-from hurry.filesize import size,alternative
-from datetime import timedelta
-
-dhclient_base = r'/var/lib/dhcp/dhclient_'
-dhcp_cfg = """
-# generated by ifconfig.py
-option rfc3442-classless-static-routes code 121 = array of unsigned integer 8;
-timeout 60;
-retry 300;
-
-interface "{{ intf }}" {
-    send host-name "{{ hostname }}";
-    {% if client_id -%}
-    send dhcp-client-identifier "{{ client_id }}";
-    {% endif -%}
-    {% if vendor_class_id -%}
-    send vendor-class-identifier "{{ vendor_class_id }}";
-    {% endif -%}
-    request subnet-mask, broadcast-address, routers, domain-name-servers,
-        rfc3442-classless-static-routes, domain-name, interface-mtu;
-    require subnet-mask;
-}
-
-"""
-
-dhcpv6_cfg = """
-# generated by ifconfig.py
-interface "{{ intf }}" {
-    request routers, domain-name-servers, domain-name;
-}
-
-"""
-
-class Control:
-    _command_get = {}
-    _command_set = {}
-
-    def _debug_msg(self, msg):
-        if os.path.isfile('/tmp/vyos.ifconfig.debug'):
-            print('DEBUG/{:<6} {}'.format(self.config['ifname'], msg))
-
-    def _cmd(self, command):
-        p = Popen(command, stdout=PIPE, stderr=STDOUT, shell=True)
-        tmp = p.communicate()[0].strip()
-        self._debug_msg("cmd '{}'".format(command))
-        if tmp.decode():
-            self._debug_msg("returned:\n{}".format(tmp.decode()))
-
-        # do we need some error checking code here?
-        return tmp.decode()
-
-    def _get_command(self, config, name):
-        """
-        Using the defined names, set data write to sysfs.
-        """
-        cmd = self._command_get[name]['shellcmd'].format(**config)
-        return self._cmd(cmd)
-
-    def _set_command(self, config, name, value):
-        """
-        Using the defined names, set data write to sysfs.
-        """
-        if not value:
-            return None
-
-        # the code can pass int as int
-        value = str(value)
-
-        validate = self._command_set[name].get('validate', None)
-        if validate:
-            validate(value)
-
-        config = {**config, **{'value': value}}
-
-        convert = self._command_set[name].get('convert', None)
-        if convert:
-            value = convert(value)
-
-        cmd = self._command_set[name]['shellcmd'].format(**config)
-        return self._cmd(cmd)
-
-    _sysfs_get = {}
-    _sysfs_set = {}
-
-    def _read_sysfs(self, filename):
-        """
-        Provide a single primitive w/ error checking for reading from sysfs.
-        """
-        value = None
-        with open(filename, 'r') as f:
-            value = f.read().rstrip('\n')
-
-        self._debug_msg("read '{}' < '{}'".format(value, filename))
-        return value
-
-    def _write_sysfs(self, filename, value):
-        """
-        Provide a single primitive w/ error checking for writing to sysfs.
-        """
-        self._debug_msg("write '{}' > '{}'".format(value, filename))
-        if os.path.isfile(filename):
-            with open(filename, 'w') as f:
-                f.write(str(value))
-            return True
-        return False
-
-    def _get_sysfs(self, config, name):
-        """
-        Using the defined names, get data write from sysfs.
-        """
-        filename = self._sysfs_get[name]['location'].format(**config)
-        if not filename:
-            return None
-        return self._read_sysfs(filename)
-
-    def _set_sysfs(self, config, name, value):
-        """
-        Using the defined names, set data write to sysfs.
-        """
-        if not value:
-            return None
-
-        # the code can pass int as int
-        value = str(value)
-
-        validate = self._sysfs_set[name].get('validate', None)
-        if validate:
-            validate(value)
-
-        config = {**config, **{'value': value}}
-
-        convert = self._sysfs_set[name].get('convert', None)
-        if convert:
-            value = convert(value)
-
-        commited = self._write_sysfs(self._sysfs_set[name]['location'].format(**config), value)
-        if not commited:
-            errmsg = self._sysfs_set.get('errormsg','')
-            if errmsg:
-                raise TypeError(errmsg.format(**config))
-        return commited
-
-    def get_interface(self, name):
-        if name in self._sysfs_get:
-            return self._get_sysfs(self.config, name)
-        if name in self._command_get:
-            return self._get_command(self.config, name)
-        raise KeyError(f'{name} is not a attribute of the interface we can get')
-
-    def set_interface(self, name, value):
-        if name in self._sysfs_set:
-            return self._set_sysfs(self.config, name, value)
-        if name in self._command_set:
-            return self._set_command(self.config, name, value)
-        raise KeyError(f'{name} is not a attribute of the interface we can set')
-
-
-class Interface(Control):
-    options = []
-    required = []
-    default = {
-        'type': '',
-    }
-
-    _command_set = {
-        'mac': {
-            'validate': assert_mac,
-            'shellcmd': 'ip link set dev {ifname} address {value}',
-        },
-        'add_vrf': {
-            'shellcmd': 'ip link set dev {ifname} master {value}',
-        },
-        'del_vrf': {
-            'shellcmd': 'ip link set dev {ifname} nomaster {value}',
-        },
-    }
-
-    _sysfs_get = {
-        'mtu': {
-            'location': '/sys/class/net/{ifname}/mtu',
-        },
-    }
-
-    _sysfs_set = {
-        'alias': {
-            'convert': lambda name: name if name else '\0',
-            'location': '/sys/class/net/{ifname}/ifalias',
-        },
-        'mtu': {
-            'validate': assert_mtu,
-            'location': '/sys/class/net/{ifname}/mtu',
-        },
-        'arp_cache_tmo': {
-            'convert': lambda tmo: (int(tmo) * 1000),
-            'location': '/proc/sys/net/ipv4/neigh/{ifname}/base_reachable_time_ms',
-        },
-        'arp_filter': {
-            'validate': assert_boolean,
-            'location': '/proc/sys/net/ipv4/conf/{ifname}/arp_filter',
-        },
-        'arp_accept': {
-            'validate': lambda arp: assert_range(arp,0,2),
-            'location': '/proc/sys/net/ipv4/conf/{ifname}/arp_accept',
-        },
-        'arp_announce': {
-            'validate': assert_boolean,
-            'location': '/proc/sys/net/ipv4/conf/{ifname}/arp_announce',
-        },
-        'arp_ignore': {
-            'validate': assert_boolean,
-            'location': '/proc/sys/net/ipv4/conf/{ifname}/arp_ignore',
-        },
-        'proxy_arp': {
-            'validate': assert_boolean,
-            'location': '/proc/sys/net/ipv4/conf/{ifname}/proxy_arp',
-        },
-        'proxy_arp_pvlan': {
-            'validate': assert_boolean,
-            'location': '/proc/sys/net/ipv4/conf/{ifname}/proxy_arp_pvlan',
-        },
-        # link_detect vs link_filter name weirdness
-        'link_detect': {
-            'validate': lambda link: assert_range(link,0,3),
-            'location': '/proc/sys/net/ipv4/conf/{ifname}/link_filter',
-        },
-    }
-
-    def __init__(self, ifname, **kargs):
-        """
-        This is the base interface class which supports basic IP/MAC address
-        operations as well as DHCP(v6). Other interface which represent e.g.
-        and ethernet bridge are implemented as derived classes adding all
-        additional functionality.
-
-        For creation you will need to provide the interface type, otherwise
-        the existing interface is used
-
-        DEBUG:
-        This class has embedded debugging (print) which can be enabled by
-        creating the following file:
-        vyos@vyos# touch /tmp/vyos.ifconfig.debug
-
-        Example:
-        >>> from vyos.ifconfig import Interface
-        >>> i = Interface('eth0')
-        """
-
-        self.config = deepcopy(self.default)
-        self.config['ifname'] = ifname
-
-        for k in self.options:
-            if k in kargs:
-                self.config[k] = kargs[k]
-
-        for k in self.required:
-            if k not in kargs:
-                raise ConfigError('missing required option {} for {}'.format(k,self.__class__))
-
-        if not os.path.exists('/sys/class/net/{}'.format(self.config['ifname'])):
-            if not self.config['type']:
-                raise Exception('interface "{}" not found'.format(self.config['ifname']))
-            self._create()
-
-        # per interface DHCP config files
-        self._dhcp_cfg_file = dhclient_base + self.config['ifname'] + '.conf'
-        self._dhcp_pid_file = dhclient_base + self.config['ifname'] + '.pid'
-        self._dhcp_lease_file = dhclient_base + self.config['ifname'] + '.leases'
-
-        # per interface DHCPv6 config files
-        self._dhcpv6_cfg_file = dhclient_base + self.config['ifname'] + '.v6conf'
-        self._dhcpv6_pid_file = dhclient_base + self.config['ifname'] + '.v6pid'
-        self._dhcpv6_lease_file = dhclient_base + self.config['ifname'] + '.v6leases'
-
-        # DHCP options
-        self._dhcp_options = {
-            'intf' : self.config['ifname'],
-            'hostname' : '',
-            'client_id' : '',
-            'vendor_class_id' : ''
-        }
-
-        # DHCPv6 options
-        self._dhcpv6_options = {
-            'intf' : self.config['ifname'],
-            'dhcpv6_prm_only' : False,
-            'dhcpv6_temporary' : False
-        }
-
-        # list of assigned IP addresses
-        self._addr = []
-
-    def _create(self):
-        cmd = 'ip link add dev {ifname} type {type}'.format(**self.config)
-        self._cmd(cmd)
-
-    def remove(self):
-        """
-        Remove interface from operating system. Removing the interface
-        deconfigures all assigned IP addresses and clear possible DHCP(v6)
-        client processes.
-
-        Example:
-        >>> from vyos.ifconfig import Interface
-        >>> i = Interface('eth0')
-        >>> i.remove()
-        """
-        # stop DHCP(v6) if running
-        self._del_dhcp()
-        self._del_dhcpv6()
-
-        # remove all assigned IP addresses from interface - this is a bit redundant
-        # as the kernel will remove all addresses on interface deletion, but we
-        # can not delete ALL interfaces, see below
-        for addr in self.get_addr():
-            self.del_addr(addr)
-
-        # ---------------------------------------------------------------------
-        # A code refactoring is required as this type check is present as
-        # Interface implement behaviour for one of it's sub-class.
-
-        # It is required as the current pattern for vlan is:
-        # Interface('name').remove() to delete an interface
-        # The code should be modified to have a class method called connect and
-        # have Interface.connect('name').remove()
-
-        # each subclass should register within Interface the pattern for that
-        # interface ie: (ethX, etc.) and use this to create an instance of
-        # the right class (EthernetIf, ...)
-
-        # Ethernet interfaces can not be removed
-        if self.__class__ == EthernetIf:
-            return
-
-        # ---------------------------------------------------------------------
-
-        self._delete()
-
-    def _delete(self):
-        # NOTE (Improvement):
-        # after interface removal no other commands should be allowed
-        # to be called and instead should raise an Exception:
-        cmd = 'ip link del dev {}'.format(self.config['ifname'])
-        return self._cmd(cmd)
-
-    def get_mtu(self):
-        """
-        Get/set interface mtu in bytes.
-
-        Example:
-        >>> from vyos.ifconfig import Interface
-        >>> Interface('eth0').get_mtu()
-        '1500'
-        """
-        return self.get_interface('mtu')
-
-    def set_mtu(self, mtu):
-        """
-        Get/set interface mtu in bytes.
-
-        Example:
-        >>> from vyos.ifconfig import Interface
-        >>> Interface('eth0').set_mtu(1400)
-        >>> Interface('eth0').get_mtu()
-        '1400'
-        """
-        return self.set_interface('mtu', mtu)
-
-    def set_mac(self, mac):
-        """
-        Set interface MAC (Media Access Contrl) address to given value.
-
-        Example:
-        >>> from vyos.ifconfig import Interface
-        >>> Interface('eth0').set_mac('00:50:ab:cd:ef:01')
-        """
-        self.set_interface('mac', mac)
-
-    def add_vrf(self, vrf):
-        """
-        Add interface to given VRF instance.
-
-        Example:
-        >>> from vyos.ifconfig import Interface
-        >>> Interface('eth0').add_vrf('foo')
-        """
-        self.set_interface('add_vrf', vrf)
-
-    def del_vrf(self, vrf):
-        """
-        Remove interface from given VRF instance.
-
-        Example:
-        >>> from vyos.ifconfig import Interface
-        >>> Interface('eth0').del_vrf('foo')
-        """
-        self.set_interface('del_vrf', vrf)
-
-    def set_arp_cache_tmo(self, tmo):
-        """
-        Set ARP cache timeout value in seconds. Internal Kernel representation
-        is in milliseconds.
-
-        Example:
-        >>> from vyos.ifconfig import Interface
-        >>> Interface('eth0').set_arp_cache_tmo(40)
-        """
-        return self.set_interface('arp_cache_tmo', tmo)
-
-    def set_arp_filter(self, arp_filter):
-        """
-        Filter ARP requests
-
-        1 - Allows you to have multiple network interfaces on the same
-            subnet, and have the ARPs for each interface be answered
-            based on whether or not the kernel would route a packet from
-            the ARP'd IP out that interface (therefore you must use source
-            based routing for this to work). In other words it allows control
-            of which cards (usually 1) will respond to an arp request.
-
-        0 - (default) The kernel can respond to arp requests with addresses
-            from other interfaces. This may seem wrong but it usually makes
-            sense, because it increases the chance of successful communication.
-            IP addresses are owned by the complete host on Linux, not by
-            particular interfaces. Only for more complex setups like load-
-            balancing, does this behaviour cause problems.
-        """
-        return self.set_interface('arp_filter', arp_filter)
-
-    def set_arp_accept(self, arp_accept):
-        """
-        Define behavior for gratuitous ARP frames who's IP is not
-        already present in the ARP table:
-        0 - don't create new entries in the ARP table
-        1 - create new entries in the ARP table
-
-        Both replies and requests type gratuitous arp will trigger the
-        ARP table to be updated, if this setting is on.
-
-        If the ARP table already contains the IP address of the
-        gratuitous arp frame, the arp table will be updated regardless
-        if this setting is on or off.
-        """
-        return self.set_interface('arp_accept', arp_accept)
-
-    def set_arp_announce(self, arp_announce):
-        """
-        Define different restriction levels for announcing the local
-        source IP address from IP packets in ARP requests sent on
-        interface:
-        0 - (default) Use any local address, configured on any interface
-        1 - Try to avoid local addresses that are not in the target's
-            subnet for this interface. This mode is useful when target
-            hosts reachable via this interface require the source IP
-            address in ARP requests to be part of their logical network
-            configured on the receiving interface. When we generate the
-            request we will check all our subnets that include the
-            target IP and will preserve the source address if it is from
-            such subnet.
-
-        Increasing the restriction level gives more chance for
-        receiving answer from the resolved target while decreasing
-        the level announces more valid sender's information.
-        """
-        return self.set_interface('arp_announce', arp_announce)
-
-    def set_arp_ignore(self, arp_ignore):
-        """
-        Define different modes for sending replies in response to received ARP
-        requests that resolve local target IP addresses:
-
-        0 - (default): reply for any local target IP address, configured
-            on any interface
-        1 - reply only if the target IP address is local address
-            configured on the incoming interface
-        """
-        return self.set_interface('arp_ignore', arp_ignore)
-
-    def set_link_detect(self, link_filter):
-        """
-        Configure kernel response in packets received on interfaces that are 'down'
-
-        0 - Allow packets to be received for the address on this interface
-            even if interface is disabled or no carrier.
-
-        1 - Ignore packets received if interface associated with the incoming
-            address is down.
-
-        2 - Ignore packets received if interface associated with the incoming
-            address is down or has no carrier.
-
-        Default value is 0. Note that some distributions enable it in startup
-        scripts.
-
-        Example:
-        >>> from vyos.ifconfig import Interface
-        >>> Interface('eth0').set_link_detect(1)
-        """
-        return self.set_interface('link_detect', link_filter)
-
-    def set_alias(self, ifalias=''):
-        """
-        Set interface alias name used by e.g. SNMP
-
-        Example:
-        >>> from vyos.ifconfig import Interface
-        >>> Interface('eth0').set_alias('VyOS upstream interface')
-
-        to clear alias e.g. delete it use:
-
-        >>> Interface('eth0').set_ifalias('')
-        """
-        self.set_interface('alias', ifalias)
-
-    def get_state(self):
-        """
-        Enable (up) / Disable (down) an interface
-
-        Example:
-        >>> from vyos.ifconfig import Interface
-        >>> Interface('eth0').get_state()
-        'up'
-        """
-        cmd = 'ip -json link show dev {}'.format(self.config['ifname'])
-        tmp = self._cmd(cmd)
-        out = json.loads(tmp)
-        return out[0]['operstate'].lower()
-
-    def set_state(self, state):
-        """
-        Enable (up) / Disable (down) an interface
-
-        Example:
-        >>> from vyos.ifconfig import Interface
-        >>> Interface('eth0').set_state('down')
-        >>> Interface('eth0').get_state()
-        'down'
-        """
-        if state not in ['up', 'down']:
-            raise ValueError('state must be "up" or "down"')
-
-        # Assemble command executed on system. Unfortunately there is no way
-        # to up/down an interface via sysfs
-        cmd = 'ip link set dev {} {}'.format(self.config['ifname'], state)
-        return self._cmd(cmd)
-
-    def set_proxy_arp(self, enable):
-        """
-        Set per interface proxy ARP configuration
-
-        Example:
-        >>> from vyos.ifconfig import Interface
-        >>> Interface('eth0').set_proxy_arp(1)
-        """
-        self.set_interface('proxy_arp', enable)
-
-    def set_proxy_arp_pvlan(self, enable):
-        """
-        Private VLAN proxy arp.
-        Basically allow proxy arp replies back to the same interface
-        (from which the ARP request/solicitation was received).
-
-        This is done to support (ethernet) switch features, like RFC
-        3069, where the individual ports are NOT allowed to
-        communicate with each other, but they are allowed to talk to
-        the upstream router.  As described in RFC 3069, it is possible
-        to allow these hosts to communicate through the upstream
-        router by proxy_arp'ing. Don't need to be used together with
-        proxy_arp.
-
-        This technology is known by different names:
-        In RFC 3069 it is called VLAN Aggregation.
-        Cisco and Allied Telesyn call it Private VLAN.
-        Hewlett-Packard call it Source-Port filtering or port-isolation.
-        Ericsson call it MAC-Forced Forwarding (RFC Draft).
-
-        Example:
-        >>> from vyos.ifconfig import Interface
-        >>> Interface('eth0').set_proxy_arp_pvlan(1)
-        """
-        self.set_interface('proxy_arp_pvlan', enable)
-
-    def get_addr(self):
-        """
-        Retrieve assigned IPv4 and IPv6 addresses from given interface.
-        This is done using the netifaces and ipaddress python modules.
-
-        Example:
-        >>> from vyos.ifconfig import Interface
-        >>> Interface('eth0').get_addrs()
-        ['172.16.33.30/24', 'fe80::20c:29ff:fe11:a174/64']
-        """
-
-        ipv4 = []
-        ipv6 = []
-
-        if AF_INET in ifaddresses(self.config['ifname']).keys():
-            for v4_addr in ifaddresses(self.config['ifname'])[AF_INET]:
-                # we need to manually assemble a list of IPv4 address/prefix
-                prefix = '/' + \
-                    str(IPv4Network('0.0.0.0/' + v4_addr['netmask']).prefixlen)
-                ipv4.append(v4_addr['addr'] + prefix)
-
-        if AF_INET6 in ifaddresses(self.config['ifname']).keys():
-            for v6_addr in ifaddresses(self.config['ifname'])[AF_INET6]:
-                # Note that currently expanded netmasks are not supported. That means
-                # 2001:db00::0/24 is a valid argument while 2001:db00::0/ffff:ff00:: not.
-                # see https://docs.python.org/3/library/ipaddress.html
-                bits = bin(
-                    int(v6_addr['netmask'].replace(':', ''), 16)).count('1')
-                prefix = '/' + str(bits)
-
-                # we alsoneed to remove the interface suffix on link local
-                # addresses
-                v6_addr['addr'] = v6_addr['addr'].split('%')[0]
-                ipv6.append(v6_addr['addr'] + prefix)
-
-        return ipv4 + ipv6
-
-    def add_addr(self, addr):
-        """
-        Add IP(v6) address to interface. Address is only added if it is not
-        already assigned to that interface.
-
-        addr: can be an IPv4 address, IPv6 address, dhcp or dhcpv6!
-              IPv4: add IPv4 address to interface
-              IPv6: add IPv6 address to interface
-              dhcp: start dhclient (IPv4) on interface
-              dhcpv6: start dhclient (IPv6) on interface
-
-        Example:
-        >>> from vyos.ifconfig import Interface
-        >>> j = Interface('eth0')
-        >>> j.add_addr('192.0.2.1/24')
-        >>> j.add_addr('2001:db8::ffff/64')
-        >>> j.get_addr()
-        ['192.0.2.1/24', '2001:db8::ffff/64']
-        """
-
-        # cache new IP address which is assigned to interface
-        self._addr.append(addr)
-
-        # we can not have both DHCP and static IPv4 addresses assigned to an interface
-        if 'dhcp' in self._addr:
-            for addr in self._addr:
-                # do not change below 'if' ordering esle you will get an exception as:
-                #   ValueError: 'dhcp' does not appear to be an IPv4 or IPv6 address
-                if addr != 'dhcp' and is_ipv4(addr):
-                    raise ConfigError("Can't configure both static IPv4 and DHCP address on the same interface")
-
-        if addr == 'dhcp':
-            self._set_dhcp()
-        elif addr == 'dhcpv6':
-            self._set_dhcpv6()
-        else:
-            if not is_intf_addr_assigned(self.config['ifname'], addr):
-                cmd = 'ip addr add "{}" dev "{}"'.format(addr, self.config['ifname'])
-                return self._cmd(cmd)
-
-    def del_addr(self, addr):
-        """
-        Delete IP(v6) address to interface. Address is only added if it is
-        assigned to that interface.
-
-        addr: can be an IPv4 address, IPv6 address, dhcp or dhcpv6!
-              IPv4: delete IPv4 address from interface
-              IPv6: delete IPv6 address from interface
-              dhcp: stop dhclient (IPv4) on interface
-              dhcpv6: stop dhclient (IPv6) on interface
-
-        Example:
-        >>> from vyos.ifconfig import Interface
-        >>> j = Interface('eth0')
-        >>> j.add_addr('2001:db8::ffff/64')
-        >>> j.add_addr('192.0.2.1/24')
-        >>> j.get_addr()
-        ['192.0.2.1/24', '2001:db8::ffff/64']
-        >>> j.del_addr('192.0.2.1/24')
-        >>> j.get_addr()
-        ['2001:db8::ffff/64']
-        """
-        if addr == 'dhcp':
-            self._del_dhcp()
-        elif addr == 'dhcpv6':
-            self._del_dhcpv6()
-        else:
-            if is_intf_addr_assigned(self.config['ifname'], addr):
-                cmd = 'ip addr del "{}" dev "{}"'.format(addr, self.config['ifname'])
-                return self._cmd(cmd)
-
-
-    def get_dhcp_options(self):
-        """
-        Return dictionary with supported DHCP options.
-
-        Dictionary should be altered and send back via set_dhcp_options()
-        so those options are applied when DHCP is run.
-        """
-        return self._dhcp_options
-
-    def set_dhcp_options(self, options):
-        """
-        Store new DHCP options used by next run of DHCP client.
-        """
-        self._dhcp_options = options
-
-    def get_dhcpv6_options(self):
-        """
-        Return dictionary with supported DHCPv6 options.
-
-        Dictionary should be altered and send back via set_dhcp_options()
-        so those options are applied when DHCP is run.
-        """
-        return self._dhcpv6_options
-
-    def set_dhcpv6_options(self, options):
-        """
-        Store new DHCP options used by next run of DHCP client.
-        """
-        self._dhcpv6_options = options
-
-    # replace dhcpv4/v6 with systemd.networkd?
-    def _set_dhcp(self):
-        """
-        Configure interface as DHCP client. The dhclient binary is automatically
-        started in background!
-
-        Example:
-
-        >>> from vyos.ifconfig import Interface
-        >>> j = Interface('eth0')
-        >>> j.set_dhcp()
-        """
-
-        dhcp = self.get_dhcp_options()
-        if not dhcp['hostname']:
-            # read configured system hostname.
-            # maybe change to vyos hostd client ???
-            with open('/etc/hostname', 'r') as f:
-                dhcp['hostname'] = f.read().rstrip('\n')
-
-        # render DHCP configuration
-        tmpl = jinja2.Template(dhcp_cfg)
-        dhcp_text = tmpl.render(dhcp)
-        with open(self._dhcp_cfg_file, 'w') as f:
-            f.write(dhcp_text)
-
-        cmd  = 'start-stop-daemon --start --quiet --pidfile ' + \
-            self._dhcp_pid_file
-        cmd += ' --exec /sbin/dhclient --'
-        # now pass arguments to dhclient binary
-        cmd += ' -4 -nw -cf {} -pf {} -lf {} {}'.format(
-            self._dhcp_cfg_file, self._dhcp_pid_file, self._dhcp_lease_file, self.config['ifname'])
-        return self._cmd(cmd)
-
-
-    def _del_dhcp(self):
-        """
-        De-configure interface as DHCP clinet. All auto generated files like
-        pid, config and lease will be removed.
-
-        Example:
-
-        >>> from vyos.ifconfig import Interface
-        >>> j = Interface('eth0')
-        >>> j.del_dhcp()
-        """
-        pid = 0
-        if os.path.isfile(self._dhcp_pid_file):
-            with open(self._dhcp_pid_file, 'r') as f:
-                pid = int(f.read())
-        else:
-            self._debug_msg('No DHCP client PID found')
-            return None
-
-        # stop dhclient, we need to call dhclient and tell it should release the
-        # aquired IP address. tcpdump tells me:
-        # 172.16.35.103.68 > 172.16.35.254.67: [bad udp cksum 0xa0cb -> 0xb943!] BOOTP/DHCP, Request from 00:50:56:9d:11:df, length 300, xid 0x620e6946, Flags [none] (0x0000)
-        #  Client-IP 172.16.35.103
-        #  Client-Ethernet-Address 00:50:56:9d:11:df
-        #  Vendor-rfc1048 Extensions
-        #    Magic Cookie 0x63825363
-        #    DHCP-Message Option 53, length 1: Release
-        #    Server-ID Option 54, length 4: 172.16.35.254
-        #    Hostname Option 12, length 10: "vyos"
-        #
-        cmd = '/sbin/dhclient -cf {} -pf {} -lf {} -r {}'.format(
-                self._dhcp_cfg_file, self._dhcp_pid_file, self._dhcp_lease_file, self.config['ifname'])
-        self._cmd(cmd)
-
-        # cleanup old config file
-        if os.path.isfile(self._dhcp_cfg_file):
-            os.remove(self._dhcp_cfg_file)
-
-        # cleanup old pid file
-        if os.path.isfile(self._dhcp_pid_file):
-            os.remove(self._dhcp_pid_file)
-
-        # cleanup old lease file
-        if os.path.isfile(self._dhcp_lease_file):
-            os.remove(self._dhcp_lease_file)
-
-
-    def _set_dhcpv6(self):
-        """
-        Configure interface as DHCPv6 client. The dhclient binary is automatically
-        started in background!
-
-        Example:
-
-        >>> from vyos.ifconfig import Interface
-        >>> j = Interface('eth0')
-        >>> j.set_dhcpv6()
-        """
-        dhcpv6 = self.get_dhcpv6_options()
-
-        # better save then sorry .. should be checked in interface script
-        # but if you missed it we are safe!
-        if dhcpv6['dhcpv6_prm_only'] and dhcpv6['dhcpv6_temporary']:
-            raise Exception('DHCPv6 temporary and parameters-only options are mutually exclusive!')
-
-        # render DHCP configuration
-        tmpl = jinja2.Template(dhcpv6_cfg)
-        dhcpv6_text = tmpl.render(dhcpv6)
-        with open(self._dhcpv6_cfg_file, 'w') as f:
-            f.write(dhcpv6_text)
-
-        # https://bugs.launchpad.net/ubuntu/+source/ifupdown/+bug/1447715
-        #
-        # wee need to wait for IPv6 DAD to finish once and interface is added
-        # this suxx :-(
-        sleep(5)
-
-        # no longer accept router announcements on this interface
-        self._write_sysfs('/proc/sys/net/ipv6/conf/{}/accept_ra'
-              .format(self.config['ifname']), 0)
-
-        # assemble command-line to start DHCPv6 client (dhclient)
-        cmd  = 'start-stop-daemon --start --quiet --pidfile ' + \
-            self._dhcpv6_pid_file
-        cmd += ' --exec /sbin/dhclient --'
-        # now pass arguments to dhclient binary
-        cmd += ' -6 -nw -cf {} -pf {} -lf {}'.format(
-            self._dhcpv6_cfg_file, self._dhcpv6_pid_file, self._dhcpv6_lease_file)
-
-        # add optional arguments
-        if dhcpv6['dhcpv6_prm_only']:
-            cmd += ' -S'
-        if dhcpv6['dhcpv6_temporary']:
-            cmd += ' -T'
-
-        cmd += ' {}'.format(self.config['ifname'])
-        return self._cmd(cmd)
-
-
-    def _del_dhcpv6(self):
-        """
-        De-configure interface as DHCPv6 clinet. All auto generated files like
-        pid, config and lease will be removed.
-
-        Example:
-
-        >>> from vyos.ifconfig import Interface
-        >>> j = Interface('eth0')
-        >>> j.del_dhcpv6()
-        """
-        pid = 0
-        if os.path.isfile(self._dhcpv6_pid_file):
-            with open(self._dhcpv6_pid_file, 'r') as f:
-                pid = int(f.read())
-        else:
-            self._debug_msg('No DHCPv6 client PID found')
-            return None
-
-        # stop dhclient
-        cmd = 'start-stop-daemon --stop --quiet --pidfile {}'.format(self._dhcpv6_pid_file)
-        self._cmd(cmd)
-
-        # accept router announcements on this interface
-        self._write_sysfs('/proc/sys/net/ipv6/conf/{}/accept_ra'
-              .format(self.config['ifname']), 1)
-
-        # cleanup old config file
-        if os.path.isfile(self._dhcpv6_cfg_file):
-            os.remove(self._dhcpv6_cfg_file)
-
-        # cleanup old pid file
-        if os.path.isfile(self._dhcpv6_pid_file):
-            os.remove(self._dhcpv6_pid_file)
-
-        # cleanup old lease file
-        if os.path.isfile(self._dhcpv6_lease_file):
-            os.remove(self._dhcpv6_lease_file)
-
-    def op_show_interface_stats(self):
-        stats = self.get_interface_stats()
-        rx = [['bytes','packets','errors','dropped','overrun','mcast'],[stats['rx_bytes'],stats['rx_packets'],stats['rx_errors'],stats['rx_dropped'],stats['rx_over_errors'],stats['multicast']]]
-        tx = [['bytes','packets','errors','dropped','carrier','collisions'],[stats['tx_bytes'],stats['tx_packets'],stats['tx_errors'],stats['tx_dropped'],stats['tx_carrier_errors'],stats['collisions']]]
-        output = "RX: \n"
-        output += tabulate(rx,headers="firstrow",numalign="right",tablefmt="plain")
-        output += "\n\nTX: \n"
-        output += tabulate(tx,headers="firstrow",numalign="right",tablefmt="plain")
-        print('  '.join(('\n'+output.lstrip()).splitlines(True)))
-
-    def get_interface_stats(self):
-        interface_stats = dict()
-        devices = [f for f in glob.glob("/sys/class/net/**/statistics")]
-        for dev_path in devices:
-            metrics = [f for f in glob.glob(dev_path +"/**")]
-            dev = re.findall(r"/sys/class/net/(.*)/statistics",dev_path)[0]
-            dev_dict = dict()
-            for metric_path in metrics:
-                metric = metric_path.replace(dev_path+"/","")
-                if isfile(metric_path):
-                    data = open(metric_path, 'r').read()[:-1]
-                    dev_dict[metric] = int(data)
-            interface_stats[dev] = dev_dict
-
-        return interface_stats[self.config['ifname']]
-
-class LoopbackIf(Interface):
-    """
-    The loopback device is a special, virtual network interface that your router
-    uses to communicate with itself.
-    """
-
-    default = {
-        'type': 'loopback',
-    }
-
-    def __init__(self, ifname, **kargs):
-        super().__init__(ifname, **kargs)
-
-    def remove(self):
-        """
-        Loopback interface can not be deleted from operating system. We can
-        only remove all assigned IP addresses.
-
-        Example:
-        >>> from vyos.ifconfig import Interface
-        >>> i = LoopbackIf('lo').remove()
-        """
-        # remove all assigned IP addresses from interface
-        for addr in self.get_addr():
-            if addr in ["127.0.0.1/8", "::1/128"]:
-                # Do not allow deletion of the default loopback addresses as
-                # this will cause weird system behavior like snmp/ssh no longer
-                # operating as expected, see https://phabricator.vyos.net/T2034.
-                continue
-
-            self.del_addr(addr)
-
-class DummyIf(Interface):
-    """
-    A dummy interface is entirely virtual like, for example, the loopback
-    interface. The purpose of a dummy interface is to provide a device to route
-    packets through without actually transmitting them.
-    """
-
-    default = {
-        'type': 'dummy',
-    }
-
-    def __init__(self, ifname, **kargs):
-        super().__init__(ifname, **kargs)
-
-
-class STPIf(Interface):
-    """
-    A spanning-tree capable interface. This applies only to bridge port member
-    interfaces!
-    """
-    _sysfs_set = {**Interface._sysfs_set, **{
-        'path_cost': {
-            # XXX: we should set a maximum
-            'validate': assert_positive,
-            'location': '/sys/class/net/{ifname}/brport/path_cost',
-            'errormsg': '{ifname} is not a bridge port member'
-        },
-        'path_priority': {
-            # XXX: we should set a maximum
-            'validate': assert_positive,
-            'location': '/sys/class/net/{ifname}/brport/priority',
-            'errormsg': '{ifname} is not a bridge port member'
-        },
-    }}
-
-    default = {
-        'type': 'stp',
-    }
-
-    def __init__(self, ifname, **kargs):
-        super().__init__(ifname, **kargs)
-
-    def set_path_cost(self, cost):
-        """
-        Set interface path cost, only relevant for STP enabled interfaces
-
-        Example:
-
-        >>> from vyos.ifconfig import Interface
-        >>> Interface('eth0').set_path_cost(4)
-        """
-        self.set_interface('path_cost', cost)
-
-    def set_path_priority(self, priority):
-        """
-        Set interface path priority, only relevant for STP enabled interfaces
-
-        Example:
-
-        >>> from vyos.ifconfig import Interface
-        >>> Interface('eth0').set_path_priority(4)
-        """
-        self.set_interface('path_priority', priority)
-
-class BridgeIf(Interface):
-    """
-    A bridge is a way to connect two Ethernet segments together in a protocol
-    independent way. Packets are forwarded based on Ethernet address, rather
-    than IP address (like a router). Since forwarding is done at Layer 2, all
-    protocols can go transparently through a bridge.
-
-    The Linux bridge code implements a subset of the ANSI/IEEE 802.1d standard.
-    """
-
-    _sysfs_set = {**Interface._sysfs_set, **{
-        'ageing_time': {
-            'validate': assert_positive,
-            'convert': lambda t: int(t) * 100,
-            'location': '/sys/class/net/{ifname}/bridge/ageing_time',
-        },
-        'forward_delay': {
-            'validate': assert_positive,
-            'convert': lambda t: int(t) * 100,
-            'location': '/sys/class/net/{ifname}/bridge/forward_delay',
-        },
-        'hello_time': {
-            'validate': assert_positive,
-            'convert': lambda t: int(t) * 100,
-            'location': '/sys/class/net/{ifname}/bridge/hello_time',
-        },
-        'max_age': {
-            'validate': assert_positive,
-            'convert': lambda t: int(t) * 100,
-            'location': '/sys/class/net/{ifname}/bridge/max_age',
-        },
-        'priority': {
-            'validate': assert_positive,
-            'location': '/sys/class/net/{ifname}/bridge/priority',
-        },
-        'stp': {
-            'validate': assert_boolean,
-            'location': '/sys/class/net/{ifname}/bridge/stp_state',
-        },
-        'multicast_querier': {
-            'validate': assert_boolean,
-            'location': '/sys/class/net/{ifname}/bridge/multicast_querier',
-        },
-    }}
-
-    _command_set = {**Interface._command_set, **{
-        'add_port': {
-            'shellcmd': 'ip link set dev {value} master {ifname}',
-        },
-        'del_port': {
-            'shellcmd': 'ip link set dev {value} nomaster',
-        },
-    }}
-
-    default = {
-        'type': 'bridge',
-    }
-
-    def __init__(self, ifname, **kargs):
-        super().__init__(ifname, **kargs)
-
-    def set_ageing_time(self, time):
-        """
-        Set bridge interface MAC address aging time in seconds. Internal kernel
-        representation is in centiseconds. Kernel default is 300 seconds.
-
-        Example:
-        >>> from vyos.ifconfig import BridgeIf
-        >>> BridgeIf('br0').ageing_time(2)
-        """
-        self.set_interface('ageing_time', time)
-
-    def set_forward_delay(self, time):
-        """
-        Set bridge forwarding delay in seconds. Internal Kernel representation
-        is in centiseconds.
-
-        Example:
-        >>> from vyos.ifconfig import BridgeIf
-        >>> BridgeIf('br0').forward_delay(15)
-        """
-        self.set_interface('forward_delay', time)
-
-
-    def set_hello_time(self, time):
-        """
-        Set bridge hello time in seconds. Internal Kernel representation
-        is in centiseconds.
-
-        Example:
-        >>> from vyos.ifconfig import BridgeIf
-        >>> BridgeIf('br0').set_hello_time(2)
-        """
-        self.set_interface('hello_time', time)
-
-    def set_max_age(self, time):
-        """
-        Set bridge max message age in seconds. Internal Kernel representation
-        is in centiseconds.
-
-        Example:
-        >>> from vyos.ifconfig import Interface
-        >>> BridgeIf('br0').set_max_age(30)
-        """
-        self.set_interface('max_age', time)
-
-    def set_priority(self, priority):
-        """
-        Set bridge max aging time in seconds.
-
-        Example:
-        >>> from vyos.ifconfig import BridgeIf
-        >>> BridgeIf('br0').set_priority(8192)
-        """
-        self.set_interface('priority', priority)
-
-    def set_stp(self, state):
-        """
-        Set bridge STP (Spanning Tree) state. 0 -> STP disabled, 1 -> STP enabled
-
-        Example:
-        >>> from vyos.ifconfig import BridgeIf
-        >>> BridgeIf('br0').set_stp(1)
-        """
-        self.set_interface('stp', state)
-
-
-    def set_multicast_querier(self, enable):
-        """
-        Sets whether the bridge actively runs a multicast querier or not. When a
-        bridge receives a 'multicast host membership' query from another network
-        host, that host is tracked based on the time that the query was received
-        plus the multicast query interval time.
-
-        Use enable=1 to enable or enable=0 to disable
-
-        Example:
-        >>> from vyos.ifconfig import Interface
-        >>> BridgeIf('br0').set_multicast_querier(1)
-        """
-        self.set_interface('multicast_querier', enable)
-
-
-    def add_port(self, interface):
-        """
-        Add physical interface to bridge (member port)
-
-        Example:
-        >>> from vyos.ifconfig import Interface
-        >>> BridgeIf('br0').add_port('eth0')
-        >>> BridgeIf('br0').add_port('eth1')
-        """
-        return self.set_interface('add_port', interface)
-
-    def del_port(self, interface):
-        """
-        Remove member port from bridge instance.
-
-        Example:
-        >>> from vyos.ifconfig import Interface
-        >>> BridgeIf('br0').del_port('eth1')
-        """
-        return self.set_interface('del_port', interface)
-
-class VLANIf(Interface):
-    """
-    This class handels the creation and removal of a VLAN interface. It serves
-    as base class for BondIf and EthernetIf.
-    """
-
-    default = {
-        'type': 'vlan',
-    }
-
-    def __init__(self, ifname, **kargs):
-        super().__init__(ifname, **kargs)
-
-    def remove(self):
-        """
-        Remove interface from operating system. Removing the interface
-        deconfigures all assigned IP addresses and clear possible DHCP(v6)
-        client processes.
-
-        Example:
-        >>> from vyos.ifconfig import Interface
-        >>> i = Interface('eth0')
-        >>> i.remove()
-        """
-        # Do we have sub interfaces (VLANs)? We apply a regex matching
-        # subinterfaces (indicated by a .) of a parent interface.
-        #
-        # As interfaces need to be deleted "in order" starting from Q-in-Q
-        # we delete them first.
-        vlan_ifs = [f for f in os.listdir(r'/sys/class/net') \
-                        if re.match(self.config['ifname'] + r'(?:\.\d+)(?:\.\d+)', f)]
-
-        for vlan in vlan_ifs:
-            Interface(vlan).remove()
-
-        # After deleting all Q-in-Q interfaces delete other VLAN interfaces
-        # which probably acted as parent to Q-in-Q or have been regular 802.1q
-        # interface.
-        vlan_ifs = [f for f in os.listdir(r'/sys/class/net') \
-                        if re.match(self.config['ifname'] + r'(?:\.\d+)', f)]
-
-        for vlan in vlan_ifs:
-            Interface(vlan).remove()
-
-        # All subinterfaces are now removed, continue on the physical interface
-        super().remove()
-
-
-    def add_vlan(self, vlan_id, ethertype='', ingress_qos='', egress_qos=''):
-        """
-        A virtual LAN (VLAN) is any broadcast domain that is partitioned and
-        isolated in a computer network at the data link layer (OSI layer 2).
-        Use this function to create a new VLAN interface on a given physical
-        interface.
-
-        This function creates both 802.1q and 802.1ad (Q-in-Q) interfaces. Proto
-        parameter is used to indicate VLAN type.
-
-        A new object of type VLANIf is returned once the interface has been
-        created.
-
-        @param ethertype: If specified, create 802.1ad or 802.1q Q-in-Q VLAN
-                          interface
-        @param ingress_qos: Defines a mapping of VLAN header prio field to the
-                            Linux internal packet priority on incoming frames.
-        @param ingress_qos: Defines a mapping of Linux internal packet priority
-                            to VLAN header prio field but for outgoing frames.
-
-        Example:
-        >>> from vyos.ifconfig import VLANIf
-        >>> i = VLANIf('eth0')
-        >>> i.add_vlan(10)
-        """
-        vlan_ifname = self.config['ifname'] + '.' + str(vlan_id)
-        if not os.path.exists('/sys/class/net/{}'.format(vlan_ifname)):
-            self._vlan_id = int(vlan_id)
-
-            if ethertype:
-                self._ethertype = ethertype
-                ethertype = 'proto {}'.format(ethertype)
-
-            # Optional ingress QOS mapping
-            opt_i = ''
-            if ingress_qos:
-                opt_i = 'ingress-qos-map ' + ingress_qos
-            # Optional egress QOS mapping
-            opt_e = ''
-            if egress_qos:
-                opt_e = 'egress-qos-map ' + egress_qos
-
-            # create interface in the system
-            cmd = 'ip link add link {ifname} name {ifname}.{vlan} type vlan {proto} id {vlan} {opt_e} {opt_i}' \
-                .format(ifname=self.config['ifname'], vlan=self._vlan_id, proto=ethertype, opt_e=opt_e, opt_i=opt_i)
-            self._cmd(cmd)
-
-        # return new object mapping to the newly created interface
-        # we can now work on this object for e.g. IP address setting
-        # or interface description and so on
-        return VLANIf(vlan_ifname)
-
-
-    def del_vlan(self, vlan_id):
-        """
-        Remove VLAN interface from operating system. Removing the interface
-        deconfigures all assigned IP addresses and clear possible DHCP(v6)
-        client processes.
-
-        Example:
-        >>> from vyos.ifconfig import VLANIf
-        >>> i = VLANIf('eth0.10')
-        >>> i.del_vlan()
-        """
-        vlan_ifname = self.config['ifname'] + '.' + str(vlan_id)
-        VLANIf(vlan_ifname).remove()
-
-
-class EthernetIf(VLANIf):
-    """
-    Abstraction of a Linux Ethernet Interface
-    """
-
-    _command_set = {**Interface._command_set, **{
-        'gro': {
-            'validate': lambda v: assert_list(v,['on','off']),
-            'shellcmd': '/sbin/ethtool -K {ifname} gro {value}',
-        },
-        'gso': {
-            'validate': lambda v: assert_list(v,['on','off']),
-            'shellcmd': '/sbin/ethtool -K {ifname} gso {value}',
-        },
-        'sg': {
-            'validate': lambda v: assert_list(v,['on','off']),
-            'shellcmd': '/sbin/ethtool -K {ifname} sg {value}',
-        },
-        'tso': {
-            'validate': lambda v: assert_list(v,['on','off']),
-            'shellcmd': '/sbin/ethtool -K {ifname} tso {value}',
-        },
-        'ufo': {
-            'validate': lambda v: assert_list(v,['on','off']),
-            'shellcmd': '/sbin/ethtool -K {ifname} ufo {value}',
-        },
-    }}
-
-    default = {
-        'type': 'ethernet',
-    }
-
-    def __init__(self, ifname, **kargs):
-        super().__init__(ifname, **kargs)
-
-    def _delete (self):
-        # Ethernet interfaces can not be removed
-        pass
-
-    def get_driver_name(self):
-        """
-        Return the driver name used by NIC. Some NICs don't support all
-        features e.g. changing link-speed, duplex
-
-        Example:
-        >>> from vyos.ifconfig import EthernetIf
-        >>> i = EthernetIf('eth0')
-        >>> i.get_driver_name()
-        'vmxnet3'
-        """
-        sysfs_file = '/sys/class/net/{}/device/driver/module'.format(self.config['ifname'])
-        if os.path.exists(sysfs_file):
-            link = os.readlink(sysfs_file)
-            return os.path.basename(link)
-        else:
-            return None
-
-    def set_flow_control(self, enable):
-        """
-        Changes the pause parameters of the specified Ethernet device.
-
-        @param enable: true -> enable pause frames, false -> disable pause frames
-
-        Example:
-        >>> from vyos.ifconfig import EthernetIf
-        >>> i = EthernetIf('eth0')
-        >>> i.set_flow_control(True)
-        """
-        if enable not in ['on', 'off']:
-            raise ValueError("Value out of range")
-
-        if self.get_driver_name() in ['vmxnet3', 'virtio_net']:
-            self._debug_msg('{} driver does not support changing flow control settings!'
-                            .format(self.get_driver_name()))
-            return
-
-        # Get current flow control settings:
-        cmd = '/sbin/ethtool --show-pause {0}'.format(self.config['ifname'])
-        tmp = self._cmd(cmd)
-
-        # The above command returns - with tabs:
-        #
-        # Pause parameters for eth0:
-        # Autonegotiate:  on
-        # RX:             off
-        # TX:             off
-        if re.search("Autonegotiate:\ton", tmp):
-            if enable == "on":
-                # flowcontrol is already enabled - no need to re-enable it again
-                # this will prevent the interface from flapping as applying the
-                # flow-control settings will take the interface down and bring
-                # it back up every time.
-                return
-
-        # Assemble command executed on system. Unfortunately there is no way
-        # to change this setting via sysfs
-        cmd = '/sbin/ethtool --pause {0} autoneg {1} tx {1} rx {1}'.format(
-              self.config['ifname'], enable)
-        try:
-            # An exception will be thrown if the settings are not changed
-            return self._cmd(cmd)
-        except CalledProcessError:
-            pass
-
-
-    def set_speed_duplex(self, speed, duplex):
-        """
-        Set link speed in Mbit/s and duplex.
-
-        @speed can be any link speed in MBit/s, e.g. 10, 100, 1000 auto
-        @duplex can be half, full, auto
-
-        Example:
-        >>> from vyos.ifconfig import EthernetIf
-        >>> i = EthernetIf('eth0')
-        >>> i.set_speed_duplex('auto', 'auto')
-        """
-
-        if speed not in ['auto', '10', '100', '1000', '2500', '5000', '10000', '25000', '40000', '50000', '100000', '400000']:
-            raise ValueError("Value out of range (speed)")
-
-        if duplex not in ['auto', 'full', 'half']:
-            raise ValueError("Value out of range (duplex)")
-
-        if self.get_driver_name() in ['vmxnet3', 'virtio_net']:
-            self._debug_msg('{} driver does not support changing speed/duplex settings!'
-                            .format(self.get_driver_name()))
-            return
-
-        # Get current speed and duplex settings:
-        cmd = '/sbin/ethtool {0}'.format(self.config['ifname'])
-        tmp = self._cmd(cmd)
-
-        if re.search("\tAuto-negotiation: on", tmp):
-            if speed == 'auto' and duplex == 'auto':
-                # bail out early as nothing is to change
-                return
-        else:
-            # read in current speed and duplex settings
-            cur_speed = 0
-            cur_duplex = ''
-            for line in tmp.splitlines():
-                if line.lstrip().startswith("Speed:"):
-                    non_decimal = re.compile(r'[^\d.]+')
-                    cur_speed = non_decimal.sub('', line)
-                    continue
-
-                if line.lstrip().startswith("Duplex:"):
-                    cur_duplex = line.split()[-1].lower()
-                    break
-
-            if (cur_speed == speed) and (cur_duplex == duplex):
-                # bail out early as nothing is to change
-                return
-
-        cmd = '/sbin/ethtool -s {}'.format(self.config['ifname'])
-        if speed == 'auto' or duplex == 'auto':
-            cmd += ' autoneg on'
-        else:
-            cmd += ' speed {} duplex {} autoneg off'.format(speed, duplex)
-
-        return self._cmd(cmd)
-
-
-    def set_gro(self, state):
-        """
-        Example:
-        >>> from vyos.ifconfig import EthernetIf
-        >>> i = EthernetIf('eth0')
-        >>> i.set_gro('on')
-        """
-        return self.set_interface('gro', state)
-
-
-    def set_gso(self, state):
-        """
-        Example:
-        >>> from vyos.ifconfig import EthernetIf
-        >>> i = EthernetIf('eth0')
-        >>> i.set_gso('on')
-        """
-        return self.set_interface('gso', state)
-
-
-    def set_sg(self, state):
-        """
-        Example:
-        >>> from vyos.ifconfig import EthernetIf
-        >>> i = EthernetIf('eth0')
-        >>> i.set_sg('on')
-        """
-        return self.set_interface('sg', state)
-
-
-    def set_tso(self, state):
-        """
-        Example:
-        >>> from vyos.ifconfig import EthernetIf
-        >>> i = EthernetIf('eth0')
-        >>> i.set_tso('on')
-        """
-        return self.set_interface('tso', state)
-
-
-    def set_ufo(self, state):
-        """
-        Example:
-        >>> from vyos.ifconfig import EthernetIf
-        >>> i = EthernetIf('eth0')
-        >>> i.set_udp_offload('on')
-        """
-        if state not in ['on', 'off']:
-            raise ValueError('state must be "on" or "off"')
-
-        cmd = '/sbin/ethtool -K {} ufo {}'.format(self.config['ifname'], state)
-        return self._cmd(cmd)
-
-class MACVLANIf(VLANIf):
-    """
-    Abstraction of a Linux MACvlan interface
-    """
-
-    options = VLANIf.options + ['link', 'mode']
-    default = {
-        'type': 'macvlan',
-    }
-
-    def __init__(self, ifname, **kargs):
-        super().__init__(ifname, **kargs)
-
-    def _create(self):
-        cmd = 'ip link add {ifname} link {link} type macvlan mode {mode}'.format(**self.config)
-        self._cmd(cmd)
-
-    @staticmethod
-    def get_config():
-        """
-        VXLAN interfaces require a configuration when they are added using
-        iproute2. This static method will provide the configuration dictionary
-        used by this class.
-
-        Example:
-        >> dict = MACVLANIf().get_config()
-        """
-        config = {
-            'address': '',
-            'link': 0,
-            'mode': ''
-        }
-        return config
-
-    def set_mode(self, mode):
-        """
-        """
-
-        cmd = 'ip link set dev {} type macvlan mode {}'.format(self.config['ifname'], mode)
-        return self._cmd(cmd)
-
-
-class BondIf(VLANIf):
-    """
-    The Linux bonding driver provides a method for aggregating multiple network
-    interfaces into a single logical "bonded" interface. The behavior of the
-    bonded interfaces depends upon the mode; generally speaking, modes provide
-    either hot standby or load balancing services. Additionally, link integrity
-    monitoring may be performed.
-    """
-
-    _sysfs_set = {**Interface._sysfs_set, **{
-        'bond_hash_policy': {
-            'validate': lambda v: assert_list(v,['layer2', 'layer2+3', 'layer3+4', 'encap2+3', 'encap3+4']),
-            'location': '/sys/class/net/{ifname}/bonding/xmit_hash_policy',
-        },
-        'bond_miimon': {
-            'validate': assert_positive,
-            'location': '/sys/class/net/{ifname}/bonding/miimon'
-        },
-        'bond_arp_interval': {
-            'validate': assert_positive,
-            'location': '/sys/class/net/{ifname}/bonding/arp_interval'
-        },
-        'bond_arp_ip_target': {
-            # XXX: no validation of the IP
-            'location': '/sys/class/net/{ifname}/bonding/arp_ip_target',
-        },
-        'bond_add_port': {
-            'location': '/sys/class/net/{ifname}+{value}/bonding/slaves',
-        },
-        'bond_del_port': {
-            'location': '/sys/class/net/{ifname}-{value}/bonding/slaves',
-        },
-        'bond_primary': {
-            'convert': lambda name: name if name else '\0',
-            'location': '/sys/class/net/{ifname}/bonding/primary',
-        },
-        'bond_mode': {
-            'validate': lambda v: assert_list(v,['balance-rr', 'active-backup', 'balance-xor', 'broadcast', '802.3ad', 'balance-tlb', 'balance-alb']),
-            'location': '/sys/class/net/{ifname}/bonding/mode',
-        },
-    }}
-
-    _sysfs_get = {**Interface._sysfs_get, **{
-        'bond_arp_ip_target': {
-            'location': '/sys/class/net/{ifname}/bonding/arp_ip_target',
-        }
-    }}
-
-    default = {
-        'type': 'bond',
-    }
-
-    def __init__(self, ifname, **kargs):
-        super().__init__(ifname, **kargs)
-
-    def remove(self):
-        """
-        Remove interface from operating system. Removing the interface
-        deconfigures all assigned IP addresses and clear possible DHCP(v6)
-        client processes.
-        Example:
-        >>> from vyos.ifconfig import Interface
-        >>> i = Interface('eth0')
-        >>> i.remove()
-        """
-        # when a bond member gets deleted, all members are placed in A/D state
-        # even when they are enabled inside CLI. This will make the config
-        # and system look async.
-        slave_list = []
-        for s in self.get_slaves():
-            slave = {
-                'ifname' : s,
-                'state': Interface(s).get_state()
-            }
-            slave_list.append(slave)
-
-        # remove bond master which places members in disabled state
-        super().remove()
-
-        # replicate previous interface state before bond destruction back to
-        # physical interface
-        for slave in slave_list:
-             i = Interface(slave['ifname'])
-             i.set_state(slave['state'])
-
-
-    def set_hash_policy(self, mode):
-        """
-        Selects the transmit hash policy to use for slave selection in
-        balance-xor, 802.3ad, and tlb modes. Possible values are: layer2,
-        layer2+3, layer3+4, encap2+3, encap3+4.
-
-        The default value is layer2
-
-        Example:
-        >>> from vyos.ifconfig import BondIf
-        >>> BondIf('bond0').set_hash_policy('layer2+3')
-        """
-        self.set_interface('bond_hash_policy', mode)
-
-    def set_arp_interval(self, interval):
-        """
-        Specifies the ARP link monitoring frequency in milliseconds.
-
-        The ARP monitor works by periodically checking the slave devices
-        to determine whether they have sent or received traffic recently
-        (the precise criteria depends upon the bonding mode, and the
-        state of the slave). Regular traffic is generated via ARP probes
-        issued for the addresses specified by the arp_ip_target option.
-
-        If ARP monitoring is used in an etherchannel compatible mode
-        (modes 0 and 2), the switch should be configured in a mode that
-        evenly distributes packets across all links. If the switch is
-        configured to distribute the packets in an XOR fashion, all
-        replies from the ARP targets will be received on the same link
-        which could cause the other team members to fail.
-
-        value of 0 disables ARP monitoring. The default value is 0.
-
-        Example:
-        >>> from vyos.ifconfig import BondIf
-        >>> BondIf('bond0').set_arp_interval('100')
-        """
-        if int(interval) == 0:
-            """
-            Specifies the MII link monitoring frequency in milliseconds.
-            This determines how often the link state of each slave is
-            inspected for link failures. A value of zero disables MII
-            link monitoring. A value of 100 is a good starting point.
-            """
-            return self.set_interface('bond_miimon', interval)
-        else:
-            return self.set_interface('bond_arp_interval', interval)
-
-    def get_arp_ip_target(self):
-        """
-        Specifies the IP addresses to use as ARP monitoring peers when
-        arp_interval is > 0. These are the targets of the ARP request sent to
-        determine the health of the link to the targets. Specify these values
-        in ddd.ddd.ddd.ddd format. Multiple IP addresses must be separated by
-        a comma. At least one IP address must be given for ARP monitoring to
-        function. The maximum number of targets that can be specified is 16.
-
-        The default value is no IP addresses.
-
-        Example:
-        >>> from vyos.ifconfig import BondIf
-        >>> BondIf('bond0').get_arp_ip_target()
-        '192.0.2.1'
-        """
-        return self.get_interface('bond_arp_ip_target')
-
-    def set_arp_ip_target(self, target):
-        """
-        Specifies the IP addresses to use as ARP monitoring peers when
-        arp_interval is > 0. These are the targets of the ARP request sent to
-        determine the health of the link to the targets. Specify these values
-        in ddd.ddd.ddd.ddd format. Multiple IP addresses must be separated by
-        a comma. At least one IP address must be given for ARP monitoring to
-        function. The maximum number of targets that can be specified is 16.
-
-        The default value is no IP addresses.
-
-        Example:
-        >>> from vyos.ifconfig import BondIf
-        >>> BondIf('bond0').set_arp_ip_target('192.0.2.1')
-        >>> BondIf('bond0').get_arp_ip_target()
-        '192.0.2.1'
-        """
-        return self.set_interface('bond_arp_ip_target', target)
-
-    def add_port(self, interface):
-        """
-        Enslave physical interface to bond.
-
-        Example:
-        >>> from vyos.ifconfig import BondIf
-        >>> BondIf('bond0').add_port('eth0')
-        >>> BondIf('bond0').add_port('eth1')
-        """
-        # An interface can only be added to a bond if it is in 'down' state. If
-        # interface is in 'up' state, the following Kernel error will  be thrown:
-        # bond0: eth1 is up - this may be due to an out of date ifenslave.
-        Interface(interface).set_state('down')
-        return self.set_interface('bond_add_port', interface)
-
-    def del_port(self, interface):
-        """
-        Remove physical port from bond
-
-        Example:
-        >>> from vyos.ifconfig import BondIf
-        >>> BondIf('bond0').del_port('eth1')
-        """
-        return self.set_interface('bond_del_port', interface)
-
-    def get_slaves(self):
-        """
-        Return a list with all configured slave interfaces on this bond.
-
-        Example:
-        >>> from vyos.ifconfig import BondIf
-        >>> BondIf('bond0').get_slaves()
-        ['eth1', 'eth2']
-        """
-        enslaved_ifs = []
-        # retrieve real enslaved interfaces from OS kernel
-        sysfs_bond = '/sys/class/net/{}'.format(self.config['ifname'])
-        if os.path.isdir(sysfs_bond):
-            for directory in os.listdir(sysfs_bond):
-                if 'lower_' in directory:
-                    enslaved_ifs.append(directory.replace('lower_',''))
-
-        return enslaved_ifs
-
-
-    def set_primary(self, interface):
-        """
-        A string (eth0, eth2, etc) specifying which slave is the primary
-        device. The specified device will always be the active slave while it
-        is available. Only when the primary is off-line will alternate devices
-        be used. This is useful when one slave is preferred over another, e.g.,
-        when one slave has higher throughput than another.
-
-        The primary option is only valid for active-backup, balance-tlb and
-        balance-alb mode.
-
-        Example:
-        >>> from vyos.ifconfig import BondIf
-        >>> BondIf('bond0').set_primary('eth2')
-        """
-        return self.set_interface('bond_primary', interface)
-
-    def set_mode(self, mode):
-        """
-        Specifies one of the bonding policies. The default is balance-rr
-        (round robin).
-
-        Possible values are: balance-rr, active-backup, balance-xor,
-        broadcast, 802.3ad, balance-tlb, balance-alb
-
-        NOTE: the bonding mode can not be changed when the bond itself has
-        slaves
-
-        Example:
-        >>> from vyos.ifconfig import BondIf
-        >>> BondIf('bond0').set_mode('802.3ad')
-        """
-        return self.set_interface('bond_mode', mode)
-
-class WireGuardIf(Interface):
-    options = ['port', 'private-key', 'pubkey', 'psk', 'allowed-ips', 'fwmark', 'endpoint', 'keepalive']
-
-    default = {
-        'type': 'wireguard',
-        'port': 0,
-        'private-key': None,
-        'pubkey': None,
-        'psk': '/dev/null',
-        'allowed-ips': [],
-        'fwmark': 0x00,
-        'endpoint': None,
-        'keepalive': 0
-    }
-
-    """
-    Wireguard interface class, contains a comnfig dictionary since
-    wireguard VPN is being comnfigured via the wg command rather than
-    writing the config into a file. Otherwise if a pre-shared key is used
-    (symetric enryption key), it would we exposed within multiple files.
-    Currently it's only within the config.boot if the config was saved.
-
-    Example:
-    >>> from vyos.ifconfig import WireGuardIf as wg_if
-    >>> wg_intfc = wg_if("wg01")
-    >>> print (wg_intfc.wg_config)
-    {'private-key': None, 'keepalive': 0, 'endpoint': None, 'port': 0,
-    'allowed-ips': [], 'pubkey': None, 'fwmark': 0, 'psk': '/dev/null'}
-    >>> wg_intfc.wg_config['keepalive'] = 100
-    >>> print (wg_intfc.wg_config)
-    {'private-key': None, 'keepalive': 100, 'endpoint': None, 'port': 0,
-    'allowed-ips': [], 'pubkey': None, 'fwmark': 0, 'psk': '/dev/null'}
-    """
-
-    def __init__(self, ifname, **kargs):
-        super().__init__(ifname, **kargs)
-
-    def update(self):
-        if not self.config['private-key']:
-            raise ValueError("private key required")
-        else:
-            # fmask permission check?
-            pass
-
-        cmd = "wg set {} ".format(self.config['ifname'])
-        cmd += "listen-port {} ".format(self.config['port'])
-        cmd += "fwmark {} ".format(str(self.config['fwmark']))
-        cmd += "private-key {} ".format(self.config['private-key'])
-        cmd += "peer {} ".format(self.config['pubkey'])
-        cmd += " preshared-key {} ".format(self.config['psk'])
-        cmd += " allowed-ips "
-        for aip in self.config['allowed-ips']:
-            if aip != self.config['allowed-ips'][-1]:
-                cmd += aip + ","
-            else:
-                cmd += aip
-        if self.config['endpoint']:
-            cmd += " endpoint {}".format(self.config['endpoint'])
-        cmd += " persistent-keepalive {}".format(self.config['keepalive'])
-
-        self._cmd(cmd)
-
-        # remove psk since it isn't required anymore and is saved in the cli
-        # config only !!
-        if self.config['psk'] != '/dev/null':
-            if os.path.exists(self.config['psk']):
-                os.remove(self.config['psk'])
-
-
-    def remove_peer(self, peerkey):
-        """
-        Remove a peer of an interface, peers are identified by their public key.
-        Giving it a readable name is a vyos feature, to remove a peer the pubkey
-        and the interface is needed, to remove the entry.
-        """
-        cmd = "wg set {0} peer {1} remove".format(
-            self.config['ifname'], str(peerkey))
-        return self._cmd(cmd)
-
-    def op_show_interface(self):
-        wgdump = vyos.interfaces.wireguard_dump().get(self.config['ifname'],None)
-
-        c = Config()
-        c.set_level(["interfaces","wireguard",self.config['ifname']])
-        description = c.return_effective_value(["description"])
-        ips = c.return_effective_values(["address"])
-
-        print ("interface: {}".format(self.config['ifname']))
-        if (description):
-            print ("  description: {}".format(description))
-
-        if (ips):
-            print ("  address: {}".format(", ".join(ips)))
-        print ("  public key: {}".format(wgdump['public_key']))
-        print ("  private key: (hidden)")
-        print ("  listening port: {}".format(wgdump['listen_port']))
-        print ()
-
-        for peer in c.list_effective_nodes(["peer"]):
-            if wgdump['peers']:
-                pubkey = c.return_effective_value(["peer",peer,"pubkey"])
-                if pubkey in wgdump['peers']:
-                    wgpeer = wgdump['peers'][pubkey]
-
-                    print ("  peer: {}".format(peer))
-                    print ("    public key: {}".format(pubkey))
-
-                    """ figure out if the tunnel is recently active or not """
-                    status = "inactive"
-                    if (wgpeer['latest_handshake'] is None):
-                        """ no handshake ever """
-                        status = "inactive"
-                    else:
-                        if int(wgpeer['latest_handshake']) > 0:
-                            delta = timedelta(seconds=int(time.time() - wgpeer['latest_handshake']))
-                            print ("    latest handshake: {}".format(delta))
-                            if (time.time() - int(wgpeer['latest_handshake']) < (60*5)):
-                                """ Five minutes and the tunnel is still active """
-                                status = "active"
-                            else:
-                                """ it's been longer than 5 minutes """
-                                status = "inactive"
-                        elif int(wgpeer['latest_handshake']) == 0:
-                            """ no handshake ever """
-                            status = "inactive"
-                        print ("    status: {}".format(status))
-
-                    if wgpeer['endpoint'] is not None:
-                        print ("    endpoint: {}".format(wgpeer['endpoint']))
-
-                    if wgpeer['allowed_ips'] is not None:
-                        print ("    allowed ips: {}".format(",".join(wgpeer['allowed_ips']).replace(",",", ")))
-
-                    if wgpeer['transfer_rx'] > 0 or wgpeer['transfer_tx'] > 0:
-                        rx_size =size(wgpeer['transfer_rx'],system=alternative)
-                        tx_size =size(wgpeer['transfer_tx'],system=alternative)
-                        print ("    transfer: {} received, {} sent".format(rx_size,tx_size))
-
-                    if wgpeer['persistent_keepalive'] is not None:
-                        print ("    persistent keepalive: every {} seconds".format(wgpeer['persistent_keepalive']))
-                print()
-        super().op_show_interface_stats()
-
-
-class VXLANIf(Interface):
-    """
-    The VXLAN protocol is a tunnelling protocol designed to solve the
-    problem of limited VLAN IDs (4096) in IEEE 802.1q. With VXLAN the
-    size of the identifier is expanded to 24 bits (16777216).
-
-    VXLAN is described by IETF RFC 7348, and has been implemented by a
-    number of vendors.  The protocol runs over UDP using a single
-    destination port.  This document describes the Linux kernel tunnel
-    device, there is also a separate implementation of VXLAN for
-    Openvswitch.
-
-    Unlike most tunnels, a VXLAN is a 1 to N network, not just point to
-    point. A VXLAN device can learn the IP address of the other endpoint
-    either dynamically in a manner similar to a learning bridge, or make
-    use of statically-configured forwarding entries.
-
-    For more information please refer to:
-    https://www.kernel.org/doc/Documentation/networking/vxlan.txt
-    """
-
-    options = ['group', 'remote', 'dev', 'port', 'vni']
-
-    default = {
-        'type': 'vxlan',
-        'vni': 0,
-        'dev': '',
-        'group': '',
-        'remote': '',
-        'port': 8472,   # The Linux implementation of VXLAN pre-dates
-                        # the IANA's selection of a standard destination port
-    }
-
-    def __init__(self, ifname, **kargs):
-        super().__init__(ifname, **kargs)
-
-    def _create(self):
-        # we assume that by default a multicast interface is created
-        group = 'group {}'.format(self.config['group'])
-
-        # if remote host is specified we ignore the multicast address
-        if self.config['remote']:
-            group = 'remote {}'.format(self.config['remote'])
-
-        # an underlay device is not always specified
-        dev = ''
-        if self.config['dev']:
-            dev = 'dev {}'.format(self.config['dev'])
-
-        cmd = 'ip link add {ifname} type vxlan id {vni} {group} {dev} dstport {port}'.format(**config)
-        self._cmd(cmd)
-
-    @staticmethod
-    def get_config():
-        """
-        VXLAN interfaces require a configuration when they are added using
-        iproute2. This static method will provide the configuration dictionary
-        used by this class.
-
-        Example:
-        >> dict = VXLANIf().get_config()
-        """
-        config = {
-            'vni': 0,
-            'dev': '',
-            'group': '',
-            'port': 8472, # The Linux implementation of VXLAN pre-dates
-                          # the IANA's selection of a standard destination port
-            'remote': ''
-        }
-        return config
-
-class GeneveIf(Interface):
-    """
-    Geneve: Generic Network Virtualization Encapsulation
-
-    For more information please refer to:
-    https://tools.ietf.org/html/draft-gross-geneve-00
-    https://www.redhat.com/en/blog/what-geneve
-    https://developers.redhat.com/blog/2019/05/17/an-introduction-to-linux-virtual-interfaces-tunnels/#geneve
-    https://lwn.net/Articles/644938/
-    """
-
-    default = {
-        'type': 'geneve',
-    }
-
-    def __init__(self, ifname, **kargs):
-        super().__init__(ifname, **kargs)
-
-    def _create (self):
-        cmd = 'ip link add name {} type geneve id {} remote {}' \
-                .format(self.config['ifname'], config['vni'], config['remote'])
-        self._cmd(cmd)
-
-        # interface is always A/D down. It needs to be enabled explicitly
-        self.set_state('down')
-
-    @staticmethod
-    def get_config():
-        """
-        GENEVE interfaces require a configuration when they are added using
-        iproute2. This static method will provide the configuration dictionary
-        used by this class.
-
-        Example:
-        >> dict = GeneveIf().get_config()
-        """
-        config = {
-            'vni': 0,
-            'remote': ''
-        }
-        return config
-
-class L2TPv3If(Interface):
-    """
-    The Linux bonding driver provides a method for aggregating multiple network
-    interfaces into a single logical "bonded" interface. The behavior of the
-    bonded interfaces depends upon the mode; generally speaking, modes provide
-    either hot standby or load balancing services. Additionally, link integrity
-    monitoring may be performed.
-    """
-
-    options = Interface.options + \
-        ['tunnel_id','peer_tunnel_id','local_port','remote_port','encapsulation','local_address','remote_address']
-    default = {
-        'type': 'l2tp',
-    }
-
-    def __init__(self, ifname, **kargs):
-        super().__init__(ifname, **kargs)
-
-    def _create (self):
-        # create tunnel interface
-        cmd = 'ip l2tp add tunnel tunnel_id {} '.format(config['tunnel_id'])
-        cmd += 'peer_tunnel_id {} '.format(config['peer_tunnel_id'])
-        cmd += 'udp_sport {} '.format(config['local_port'])
-        cmd += 'udp_dport {} '.format(config['remote_port'])
-        cmd += 'encap {} '.format(config['encapsulation'])
-        cmd += 'local {} '.format(config['local_address'])
-        cmd += 'remote {} '.format(config['remote_address'])
-        self._cmd(cmd)
-
-        # setup session
-        cmd = 'ip l2tp add session name {} '.format(self.config['ifname'])
-        cmd += 'tunnel_id {} '.format(config['tunnel_id'])
-        cmd += 'session_id {} '.format(config['session_id'])
-        cmd += 'peer_session_id  {} '.format(config['peer_session_id'])
-        self._cmd(cmd)
-
-        # interface is always A/D down. It needs to be enabled explicitly
-        self.set_state('down')
-
-    def remove(self):
-        """
-        Remove interface from operating system. Removing the interface
-        deconfigures all assigned IP addresses.
-        Example:
-        >>> from vyos.ifconfig import L2TPv3If
-        >>> i = L2TPv3If('l2tpeth0')
-        >>> i.remove()
-        """
-
-        if os.path.exists('/sys/class/net/{}'.format(self.config['ifname'])):
-            # interface is always A/D down. It needs to be enabled explicitly
-            self.set_state('down')
-
-            if self._config['tunnel_id'] and self._config['session_id']:
-                cmd = 'ip l2tp del session tunnel_id {} '.format(self._config['tunnel_id'])
-                cmd += 'session_id {} '.format(self._config['session_id'])
-                self._cmd(cmd)
-
-            if self._config['tunnel_id']:
-                cmd = 'ip l2tp del tunnel tunnel_id {} '.format(self._config['tunnel_id'])
-                self._cmd(cmd)
-
-    @staticmethod
-    def get_config():
-        """
-        L2TPv3 interfaces require a configuration when they are added using
-        iproute2. This static method will provide the configuration dictionary
-        used by this class.
-
-        Example:
-        >> dict = L2TPv3If().get_config()
-        """
-        config = {
-            'peer_tunnel_id': '',
-            'local_port': 0,
-            'remote_port': 0,
-            'encapsulation': 'udp',
-            'local_address': '',
-            'remote_address': '',
-            'session_id': '',
-            'tunnel_id': '',
-            'peer_session_id': ''
-        }
-        return config
diff --git a/python/vyos/ifconfig/__init__.py b/python/vyos/ifconfig/__init__.py
new file mode 100644
index 000000000..c77b2f9db
--- /dev/null
+++ b/python/vyos/ifconfig/__init__.py
@@ -0,0 +1,29 @@
+# Copyright 2019 VyOS maintainers and contributors <maintainers@vyos.io>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+
+
+from vyos.ifconfig.interface import Interface
+
+from vyos.ifconfig.bond import BondIf
+from vyos.ifconfig.bridge import BridgeIf
+from vyos.ifconfig.dummy import DummyIf
+from vyos.ifconfig.ethernet import EthernetIf
+from vyos.ifconfig.geneve import GeneveIf
+from vyos.ifconfig.loopback import LoopbackIf
+from vyos.ifconfig.macvlan import MACVLANIf
+from vyos.ifconfig.stp import STPIf
+from vyos.ifconfig.vlan import VLANIf
+from vyos.ifconfig.vxlan import VXLANIf
+from vyos.ifconfig.wireguard import WireGuardIf
diff --git a/python/vyos/ifconfig/bond.py b/python/vyos/ifconfig/bond.py
new file mode 100644
index 000000000..6e4c281be
--- /dev/null
+++ b/python/vyos/ifconfig/bond.py
@@ -0,0 +1,270 @@
+# Copyright 2019 VyOS maintainers and contributors <maintainers@vyos.io>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+
+import os
+
+from vyos.ifconfig.interface import Interface
+from vyos.ifconfig.vlan import VLANIf
+
+from vyos.validate import *
+
+
+class BondIf(VLANIf):
+    """
+    The Linux bonding driver provides a method for aggregating multiple network
+    interfaces into a single logical "bonded" interface. The behavior of the
+    bonded interfaces depends upon the mode; generally speaking, modes provide
+    either hot standby or load balancing services. Additionally, link integrity
+    monitoring may be performed.
+    """
+
+    _sysfs_set = {**VLANIf._sysfs_set, **{
+        'bond_hash_policy': {
+            'validate': lambda v: assert_list(v, ['layer2', 'layer2+3', 'layer3+4', 'encap2+3', 'encap3+4']),
+            'location': '/sys/class/net/{ifname}/bonding/xmit_hash_policy',
+        },
+        'bond_miimon': {
+            'validate': assert_positive,
+            'location': '/sys/class/net/{ifname}/bonding/miimon'
+        },
+        'bond_arp_interval': {
+            'validate': assert_positive,
+            'location': '/sys/class/net/{ifname}/bonding/arp_interval'
+        },
+        'bond_arp_ip_target': {
+            # XXX: no validation of the IP
+            'location': '/sys/class/net/{ifname}/bonding/arp_ip_target',
+        },
+        'bond_add_port': {
+            'location': '/sys/class/net/{ifname}+{value}/bonding/slaves',
+        },
+        'bond_del_port': {
+            'location': '/sys/class/net/{ifname}-{value}/bonding/slaves',
+        },
+        'bond_primary': {
+            'convert': lambda name: name if name else '\0',
+            'location': '/sys/class/net/{ifname}/bonding/primary',
+        },
+        'bond_mode': {
+            'validate': lambda v: assert_list(v, ['balance-rr', 'active-backup', 'balance-xor', 'broadcast', '802.3ad', 'balance-tlb', 'balance-alb']),
+            'location': '/sys/class/net/{ifname}/bonding/mode',
+        },
+    }}
+
+    _sysfs_get = {**VLANIf._sysfs_get, **{
+        'bond_arp_ip_target': {
+            'location': '/sys/class/net/{ifname}/bonding/arp_ip_target',
+        }
+    }}
+
+    default = {
+        'type': 'bond',
+    }
+
+    def __init__(self, ifname, **kargs):
+        super().__init__(ifname, **kargs)
+
+    def remove(self):
+        """
+        Remove interface from operating system. Removing the interface
+        deconfigures all assigned IP addresses and clear possible DHCP(v6)
+        client processes.
+        Example:
+        >>> from vyos.ifconfig import Interface
+        >>> i = Interface('eth0')
+        >>> i.remove()
+        """
+        # when a bond member gets deleted, all members are placed in A/D state
+        # even when they are enabled inside CLI. This will make the config
+        # and system look async.
+        slave_list = []
+        for s in self.get_slaves():
+            slave = {
+                'ifname': s,
+                'state': Interface(s).get_state()
+            }
+            slave_list.append(slave)
+
+        # remove bond master which places members in disabled state
+        super().remove()
+
+        # replicate previous interface state before bond destruction back to
+        # physical interface
+        for slave in slave_list:
+             i = Interface(slave['ifname'])
+             i.set_state(slave['state'])
+
+    def set_hash_policy(self, mode):
+        """
+        Selects the transmit hash policy to use for slave selection in
+        balance-xor, 802.3ad, and tlb modes. Possible values are: layer2,
+        layer2+3, layer3+4, encap2+3, encap3+4.
+
+        The default value is layer2
+
+        Example:
+        >>> from vyos.ifconfig import BondIf
+        >>> BondIf('bond0').set_hash_policy('layer2+3')
+        """
+        self.set_interface('bond_hash_policy', mode)
+
+    def set_arp_interval(self, interval):
+        """
+        Specifies the ARP link monitoring frequency in milliseconds.
+
+        The ARP monitor works by periodically checking the slave devices
+        to determine whether they have sent or received traffic recently
+        (the precise criteria depends upon the bonding mode, and the
+        state of the slave). Regular traffic is generated via ARP probes
+        issued for the addresses specified by the arp_ip_target option.
+
+        If ARP monitoring is used in an etherchannel compatible mode
+        (modes 0 and 2), the switch should be configured in a mode that
+        evenly distributes packets across all links. If the switch is
+        configured to distribute the packets in an XOR fashion, all
+        replies from the ARP targets will be received on the same link
+        which could cause the other team members to fail.
+
+        value of 0 disables ARP monitoring. The default value is 0.
+
+        Example:
+        >>> from vyos.ifconfig import BondIf
+        >>> BondIf('bond0').set_arp_interval('100')
+        """
+        if int(interval) == 0:
+            """
+            Specifies the MII link monitoring frequency in milliseconds.
+            This determines how often the link state of each slave is
+            inspected for link failures. A value of zero disables MII
+            link monitoring. A value of 100 is a good starting point.
+            """
+            return self.set_interface('bond_miimon', interval)
+        else:
+            return self.set_interface('bond_arp_interval', interval)
+
+    def get_arp_ip_target(self):
+        """
+        Specifies the IP addresses to use as ARP monitoring peers when
+        arp_interval is > 0. These are the targets of the ARP request sent to
+        determine the health of the link to the targets. Specify these values
+        in ddd.ddd.ddd.ddd format. Multiple IP addresses must be separated by
+        a comma. At least one IP address must be given for ARP monitoring to
+        function. The maximum number of targets that can be specified is 16.
+
+        The default value is no IP addresses.
+
+        Example:
+        >>> from vyos.ifconfig import BondIf
+        >>> BondIf('bond0').get_arp_ip_target()
+        '192.0.2.1'
+        """
+        return self.get_interface('bond_arp_ip_target')
+
+    def set_arp_ip_target(self, target):
+        """
+        Specifies the IP addresses to use as ARP monitoring peers when
+        arp_interval is > 0. These are the targets of the ARP request sent to
+        determine the health of the link to the targets. Specify these values
+        in ddd.ddd.ddd.ddd format. Multiple IP addresses must be separated by
+        a comma. At least one IP address must be given for ARP monitoring to
+        function. The maximum number of targets that can be specified is 16.
+
+        The default value is no IP addresses.
+
+        Example:
+        >>> from vyos.ifconfig import BondIf
+        >>> BondIf('bond0').set_arp_ip_target('192.0.2.1')
+        >>> BondIf('bond0').get_arp_ip_target()
+        '192.0.2.1'
+        """
+        return self.set_interface('bond_arp_ip_target', target)
+
+    def add_port(self, interface):
+        """
+        Enslave physical interface to bond.
+
+        Example:
+        >>> from vyos.ifconfig import BondIf
+        >>> BondIf('bond0').add_port('eth0')
+        >>> BondIf('bond0').add_port('eth1')
+        """
+        # An interface can only be added to a bond if it is in 'down' state. If
+        # interface is in 'up' state, the following Kernel error will  be thrown:
+        # bond0: eth1 is up - this may be due to an out of date ifenslave.
+        Interface(interface).set_state('down')
+        return self.set_interface('bond_add_port', interface)
+
+    def del_port(self, interface):
+        """
+        Remove physical port from bond
+
+        Example:
+        >>> from vyos.ifconfig import BondIf
+        >>> BondIf('bond0').del_port('eth1')
+        """
+        return self.set_interface('bond_del_port', interface)
+
+    def get_slaves(self):
+        """
+        Return a list with all configured slave interfaces on this bond.
+
+        Example:
+        >>> from vyos.ifconfig import BondIf
+        >>> BondIf('bond0').get_slaves()
+        ['eth1', 'eth2']
+        """
+        enslaved_ifs = []
+        # retrieve real enslaved interfaces from OS kernel
+        sysfs_bond = '/sys/class/net/{}'.format(self.config['ifname'])
+        if os.path.isdir(sysfs_bond):
+            for directory in os.listdir(sysfs_bond):
+                if 'lower_' in directory:
+                    enslaved_ifs.append(directory.replace('lower_', ''))
+
+        return enslaved_ifs
+
+    def set_primary(self, interface):
+        """
+        A string (eth0, eth2, etc) specifying which slave is the primary
+        device. The specified device will always be the active slave while it
+        is available. Only when the primary is off-line will alternate devices
+        be used. This is useful when one slave is preferred over another, e.g.,
+        when one slave has higher throughput than another.
+
+        The primary option is only valid for active-backup, balance-tlb and
+        balance-alb mode.
+
+        Example:
+        >>> from vyos.ifconfig import BondIf
+        >>> BondIf('bond0').set_primary('eth2')
+        """
+        return self.set_interface('bond_primary', interface)
+
+    def set_mode(self, mode):
+        """
+        Specifies one of the bonding policies. The default is balance-rr
+        (round robin).
+
+        Possible values are: balance-rr, active-backup, balance-xor,
+        broadcast, 802.3ad, balance-tlb, balance-alb
+
+        NOTE: the bonding mode can not be changed when the bond itself has
+        slaves
+
+        Example:
+        >>> from vyos.ifconfig import BondIf
+        >>> BondIf('bond0').set_mode('802.3ad')
+        """
+        return self.set_interface('bond_mode', mode)
diff --git a/python/vyos/ifconfig/bridge.py b/python/vyos/ifconfig/bridge.py
new file mode 100644
index 000000000..392718d9f
--- /dev/null
+++ b/python/vyos/ifconfig/bridge.py
@@ -0,0 +1,180 @@
+# Copyright 2019 VyOS maintainers and contributors <maintainers@vyos.io>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+
+
+from vyos.ifconfig.interface import Interface
+
+from vyos.validate import *
+
+class BridgeIf(Interface):
+    """
+    A bridge is a way to connect two Ethernet segments together in a protocol
+    independent way. Packets are forwarded based on Ethernet address, rather
+    than IP address (like a router). Since forwarding is done at Layer 2, all
+    protocols can go transparently through a bridge.
+
+    The Linux bridge code implements a subset of the ANSI/IEEE 802.1d standard.
+    """
+
+    _sysfs_set = {**Interface._sysfs_set, **{
+        'ageing_time': {
+            'validate': assert_positive,
+            'convert': lambda t: int(t) * 100,
+            'location': '/sys/class/net/{ifname}/bridge/ageing_time',
+        },
+        'forward_delay': {
+            'validate': assert_positive,
+            'convert': lambda t: int(t) * 100,
+            'location': '/sys/class/net/{ifname}/bridge/forward_delay',
+        },
+        'hello_time': {
+            'validate': assert_positive,
+            'convert': lambda t: int(t) * 100,
+            'location': '/sys/class/net/{ifname}/bridge/hello_time',
+        },
+        'max_age': {
+            'validate': assert_positive,
+            'convert': lambda t: int(t) * 100,
+            'location': '/sys/class/net/{ifname}/bridge/max_age',
+        },
+        'priority': {
+            'validate': assert_positive,
+            'location': '/sys/class/net/{ifname}/bridge/priority',
+        },
+        'stp': {
+            'validate': assert_boolean,
+            'location': '/sys/class/net/{ifname}/bridge/stp_state',
+        },
+        'multicast_querier': {
+            'validate': assert_boolean,
+            'location': '/sys/class/net/{ifname}/bridge/multicast_querier',
+        },
+    }}
+
+    _command_set = {**Interface._command_set, **{
+        'add_port': {
+            'shellcmd': 'ip link set dev {value} master {ifname}',
+        },
+        'del_port': {
+            'shellcmd': 'ip link set dev {value} nomaster',
+        },
+    }}
+
+    default = {
+        'type': 'bridge',
+    }
+
+    def __init__(self, ifname, **kargs):
+        super().__init__(ifname, **kargs)
+
+    def set_ageing_time(self, time):
+        """
+        Set bridge interface MAC address aging time in seconds. Internal kernel
+        representation is in centiseconds. Kernel default is 300 seconds.
+
+        Example:
+        >>> from vyos.ifconfig import BridgeIf
+        >>> BridgeIf('br0').ageing_time(2)
+        """
+        self.set_interface('ageing_time', time)
+
+    def set_forward_delay(self, time):
+        """
+        Set bridge forwarding delay in seconds. Internal Kernel representation
+        is in centiseconds.
+
+        Example:
+        >>> from vyos.ifconfig import BridgeIf
+        >>> BridgeIf('br0').forward_delay(15)
+        """
+        self.set_interface('forward_delay', time)
+
+    def set_hello_time(self, time):
+        """
+        Set bridge hello time in seconds. Internal Kernel representation
+        is in centiseconds.
+
+        Example:
+        >>> from vyos.ifconfig import BridgeIf
+        >>> BridgeIf('br0').set_hello_time(2)
+        """
+        self.set_interface('hello_time', time)
+
+    def set_max_age(self, time):
+        """
+        Set bridge max message age in seconds. Internal Kernel representation
+        is in centiseconds.
+
+        Example:
+        >>> from vyos.ifconfig import Interface
+        >>> BridgeIf('br0').set_max_age(30)
+        """
+        self.set_interface('max_age', time)
+
+    def set_priority(self, priority):
+        """
+        Set bridge max aging time in seconds.
+
+        Example:
+        >>> from vyos.ifconfig import BridgeIf
+        >>> BridgeIf('br0').set_priority(8192)
+        """
+        self.set_interface('priority', priority)
+
+    def set_stp(self, state):
+        """
+        Set bridge STP (Spanning Tree) state. 0 -> STP disabled, 1 -> STP enabled
+
+        Example:
+        >>> from vyos.ifconfig import BridgeIf
+        >>> BridgeIf('br0').set_stp(1)
+        """
+        self.set_interface('stp', state)
+
+    def set_multicast_querier(self, enable):
+        """
+        Sets whether the bridge actively runs a multicast querier or not. When a
+        bridge receives a 'multicast host membership' query from another network
+        host, that host is tracked based on the time that the query was received
+        plus the multicast query interval time.
+
+        Use enable=1 to enable or enable=0 to disable
+
+        Example:
+        >>> from vyos.ifconfig import Interface
+        >>> BridgeIf('br0').set_multicast_querier(1)
+        """
+        self.set_interface('multicast_querier', enable)
+
+    def add_port(self, interface):
+        """
+        Add physical interface to bridge (member port)
+
+        Example:
+        >>> from vyos.ifconfig import Interface
+        >>> BridgeIf('br0').add_port('eth0')
+        >>> BridgeIf('br0').add_port('eth1')
+        """
+        return self.set_interface('add_port', interface)
+
+    def del_port(self, interface):
+        """
+        Remove member port from bridge instance.
+
+        Example:
+        >>> from vyos.ifconfig import Interface
+        >>> BridgeIf('br0').del_port('eth1')
+        """
+        return self.set_interface('del_port', interface)
diff --git a/python/vyos/ifconfig/control.py b/python/vyos/ifconfig/control.py
new file mode 100644
index 000000000..508b4e279
--- /dev/null
+++ b/python/vyos/ifconfig/control.py
@@ -0,0 +1,143 @@
+# Copyright 2019 VyOS maintainers and contributors <maintainers@vyos.io>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+
+
+import os
+from subprocess import Popen, PIPE, STDOUT
+
+
+class Control:
+    _command_get = {}
+    _command_set = {}
+
+    def _debug_msg(self, msg):
+        if os.path.isfile('/tmp/vyos.ifconfig.debug'):
+            print('DEBUG/{:<6} {}'.format(self.config['ifname'], msg))
+
+    def _cmd(self, command):
+        p = Popen(command, stdout=PIPE, stderr=STDOUT, shell=True)
+        tmp = p.communicate()[0].strip()
+        self._debug_msg("cmd '{}'".format(command))
+        if tmp.decode():
+            self._debug_msg("returned:\n{}".format(tmp.decode()))
+
+        # do we need some error checking code here?
+        return tmp.decode()
+
+    def _get_command(self, config, name):
+        """
+        Using the defined names, set data write to sysfs.
+        """
+        cmd = self._command_get[name]['shellcmd'].format(**config)
+        return self._cmd(cmd)
+
+    def _set_command(self, config, name, value):
+        """
+        Using the defined names, set data write to sysfs.
+        """
+        if not value:
+            return None
+
+        # the code can pass int as int
+        value = str(value)
+
+        validate = self._command_set[name].get('validate', None)
+        if validate:
+            validate(value)
+
+        config = {**config, **{'value': value}}
+
+        convert = self._command_set[name].get('convert', None)
+        if convert:
+            value = convert(value)
+
+        cmd = self._command_set[name]['shellcmd'].format(**config)
+        return self._cmd(cmd)
+
+    _sysfs_get = {}
+    _sysfs_set = {}
+
+    def _read_sysfs(self, filename):
+        """
+        Provide a single primitive w/ error checking for reading from sysfs.
+        """
+        value = None
+        with open(filename, 'r') as f:
+            value = f.read().rstrip('\n')
+
+        self._debug_msg("read '{}' < '{}'".format(value, filename))
+        return value
+
+    def _write_sysfs(self, filename, value):
+        """
+        Provide a single primitive w/ error checking for writing to sysfs.
+        """
+        self._debug_msg("write '{}' > '{}'".format(value, filename))
+        if os.path.isfile(filename):
+            with open(filename, 'w') as f:
+                f.write(str(value))
+            return True
+        return False
+
+    def _get_sysfs(self, config, name):
+        """
+        Using the defined names, get data write from sysfs.
+        """
+        filename = self._sysfs_get[name]['location'].format(**config)
+        if not filename:
+            return None
+        return self._read_sysfs(filename)
+
+    def _set_sysfs(self, config, name, value):
+        """
+        Using the defined names, set data write to sysfs.
+        """
+        if not value:
+            return None
+
+        # the code can pass int as int
+        value = str(value)
+
+        validate = self._sysfs_set[name].get('validate', None)
+        if validate:
+            validate(value)
+
+        config = {**config, **{'value': value}}
+
+        convert = self._sysfs_set[name].get('convert', None)
+        if convert:
+            value = convert(value)
+
+        commited = self._write_sysfs(
+            self._sysfs_set[name]['location'].format(**config), value)
+        if not commited:
+            errmsg = self._sysfs_set.get('errormsg', '')
+            if errmsg:
+                raise TypeError(errmsg.format(**config))
+        return commited
+
+    def get_interface(self, name):
+        if name in self._sysfs_get:
+            return self._get_sysfs(self.config, name)
+        if name in self._command_get:
+            return self._get_command(self.config, name)
+        raise KeyError(f'{name} is not a attribute of the interface we can get')
+
+    def set_interface(self, name, value):
+        if name in self._sysfs_set:
+            return self._set_sysfs(self.config, name, value)
+        if name in self._command_set:
+            return self._set_command(self.config, name, value)
+        raise KeyError(f'{name} is not a attribute of the interface we can set')
diff --git a/python/vyos/ifconfig/dummy.py b/python/vyos/ifconfig/dummy.py
new file mode 100644
index 000000000..55935a16e
--- /dev/null
+++ b/python/vyos/ifconfig/dummy.py
@@ -0,0 +1,32 @@
+# Copyright 2019 VyOS maintainers and contributors <maintainers@vyos.io>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+
+
+from vyos.ifconfig.interface import Interface
+
+
+class DummyIf(Interface):
+    """
+    A dummy interface is entirely virtual like, for example, the loopback
+    interface. The purpose of a dummy interface is to provide a device to route
+    packets through without actually transmitting them.
+    """
+
+    default = {
+        'type': 'dummy',
+    }
+
+    def __init__(self, ifname, **kargs):
+        super().__init__(ifname, **kargs)
diff --git a/python/vyos/ifconfig/ethernet.py b/python/vyos/ifconfig/ethernet.py
new file mode 100644
index 000000000..9863ca826
--- /dev/null
+++ b/python/vyos/ifconfig/ethernet.py
@@ -0,0 +1,234 @@
+# Copyright 2019 VyOS maintainers and contributors <maintainers@vyos.io>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+
+import os
+import re
+
+from vyos.ifconfig.vlan import VLANIf
+
+from vyos.validate import *
+
+
+class EthernetIf(VLANIf):
+    """
+    Abstraction of a Linux Ethernet Interface
+    """
+
+    _command_set = {**VLANIf._command_set, **{
+        'gro': {
+            'validate': lambda v: assert_list(v, ['on', 'off']),
+            'shellcmd': '/sbin/ethtool -K {ifname} gro {value}',
+        },
+        'gso': {
+            'validate': lambda v: assert_list(v, ['on', 'off']),
+            'shellcmd': '/sbin/ethtool -K {ifname} gso {value}',
+        },
+        'sg': {
+            'validate': lambda v: assert_list(v, ['on', 'off']),
+            'shellcmd': '/sbin/ethtool -K {ifname} sg {value}',
+        },
+        'tso': {
+            'validate': lambda v: assert_list(v, ['on', 'off']),
+            'shellcmd': '/sbin/ethtool -K {ifname} tso {value}',
+        },
+        'ufo': {
+            'validate': lambda v: assert_list(v, ['on', 'off']),
+            'shellcmd': '/sbin/ethtool -K {ifname} ufo {value}',
+        },
+    }}
+
+    default = {
+        'type': 'ethernet',
+    }
+
+    def __init__(self, ifname, **kargs):
+        super().__init__(ifname, **kargs)
+
+    def _delete(self):
+        # Ethernet interfaces can not be removed
+        pass
+
+    def get_driver_name(self):
+        """
+        Return the driver name used by NIC. Some NICs don't support all
+        features e.g. changing link-speed, duplex
+
+        Example:
+        >>> from vyos.ifconfig import EthernetIf
+        >>> i = EthernetIf('eth0')
+        >>> i.get_driver_name()
+        'vmxnet3'
+        """
+        sysfs_file = '/sys/class/net/{}/device/driver/module'.format(
+            self.config['ifname'])
+        if os.path.exists(sysfs_file):
+            link = os.readlink(sysfs_file)
+            return os.path.basename(link)
+        else:
+            return None
+
+    def set_flow_control(self, enable):
+        """
+        Changes the pause parameters of the specified Ethernet device.
+
+        @param enable: true -> enable pause frames, false -> disable pause frames
+
+        Example:
+        >>> from vyos.ifconfig import EthernetIf
+        >>> i = EthernetIf('eth0')
+        >>> i.set_flow_control(True)
+        """
+        if enable not in ['on', 'off']:
+            raise ValueError("Value out of range")
+
+        if self.get_driver_name() in ['vmxnet3', 'virtio_net']:
+            self._debug_msg('{} driver does not support changing flow control settings!'
+                            .format(self.get_driver_name()))
+            return
+
+        # Get current flow control settings:
+        cmd = '/sbin/ethtool --show-pause {0}'.format(self.config['ifname'])
+        tmp = self._cmd(cmd)
+
+        # The above command returns - with tabs:
+        #
+        # Pause parameters for eth0:
+        # Autonegotiate:  on
+        # RX:             off
+        # TX:             off
+        if re.search("Autonegotiate:\ton", tmp):
+            if enable == "on":
+                # flowcontrol is already enabled - no need to re-enable it again
+                # this will prevent the interface from flapping as applying the
+                # flow-control settings will take the interface down and bring
+                # it back up every time.
+                return
+
+        # Assemble command executed on system. Unfortunately there is no way
+        # to change this setting via sysfs
+        cmd = '/sbin/ethtool --pause {0} autoneg {1} tx {1} rx {1}'.format(
+              self.config['ifname'], enable)
+        try:
+            # An exception will be thrown if the settings are not changed
+            return self._cmd(cmd)
+        except CalledProcessError:
+            pass
+
+    def set_speed_duplex(self, speed, duplex):
+        """
+        Set link speed in Mbit/s and duplex.
+
+        @speed can be any link speed in MBit/s, e.g. 10, 100, 1000 auto
+        @duplex can be half, full, auto
+
+        Example:
+        >>> from vyos.ifconfig import EthernetIf
+        >>> i = EthernetIf('eth0')
+        >>> i.set_speed_duplex('auto', 'auto')
+        """
+
+        if speed not in ['auto', '10', '100', '1000', '2500', '5000', '10000', '25000', '40000', '50000', '100000', '400000']:
+            raise ValueError("Value out of range (speed)")
+
+        if duplex not in ['auto', 'full', 'half']:
+            raise ValueError("Value out of range (duplex)")
+
+        if self.get_driver_name() in ['vmxnet3', 'virtio_net']:
+            self._debug_msg('{} driver does not support changing speed/duplex settings!'
+                            .format(self.get_driver_name()))
+            return
+
+        # Get current speed and duplex settings:
+        cmd = '/sbin/ethtool {0}'.format(self.config['ifname'])
+        tmp = self._cmd(cmd)
+
+        if re.search("\tAuto-negotiation: on", tmp):
+            if speed == 'auto' and duplex == 'auto':
+                # bail out early as nothing is to change
+                return
+        else:
+            # read in current speed and duplex settings
+            cur_speed = 0
+            cur_duplex = ''
+            for line in tmp.splitlines():
+                if line.lstrip().startswith("Speed:"):
+                    non_decimal = re.compile(r'[^\d.]+')
+                    cur_speed = non_decimal.sub('', line)
+                    continue
+
+                if line.lstrip().startswith("Duplex:"):
+                    cur_duplex = line.split()[-1].lower()
+                    break
+
+            if (cur_speed == speed) and (cur_duplex == duplex):
+                # bail out early as nothing is to change
+                return
+
+        cmd = '/sbin/ethtool -s {}'.format(self.config['ifname'])
+        if speed == 'auto' or duplex == 'auto':
+            cmd += ' autoneg on'
+        else:
+            cmd += ' speed {} duplex {} autoneg off'.format(speed, duplex)
+
+        return self._cmd(cmd)
+
+    def set_gro(self, state):
+        """
+        Example:
+        >>> from vyos.ifconfig import EthernetIf
+        >>> i = EthernetIf('eth0')
+        >>> i.set_gro('on')
+        """
+        return self.set_interface('gro', state)
+
+    def set_gso(self, state):
+        """
+        Example:
+        >>> from vyos.ifconfig import EthernetIf
+        >>> i = EthernetIf('eth0')
+        >>> i.set_gso('on')
+        """
+        return self.set_interface('gso', state)
+
+    def set_sg(self, state):
+        """
+        Example:
+        >>> from vyos.ifconfig import EthernetIf
+        >>> i = EthernetIf('eth0')
+        >>> i.set_sg('on')
+        """
+        return self.set_interface('sg', state)
+
+    def set_tso(self, state):
+        """
+        Example:
+        >>> from vyos.ifconfig import EthernetIf
+        >>> i = EthernetIf('eth0')
+        >>> i.set_tso('on')
+        """
+        return self.set_interface('tso', state)
+
+    def set_ufo(self, state):
+        """
+        Example:
+        >>> from vyos.ifconfig import EthernetIf
+        >>> i = EthernetIf('eth0')
+        >>> i.set_udp_offload('on')
+        """
+        if state not in ['on', 'off']:
+            raise ValueError('state must be "on" or "off"')
+
+        cmd = '/sbin/ethtool -K {} ufo {}'.format(self.config['ifname'], state)
+        return self._cmd(cmd)
diff --git a/python/vyos/ifconfig/geneve.py b/python/vyos/ifconfig/geneve.py
new file mode 100644
index 000000000..46782a685
--- /dev/null
+++ b/python/vyos/ifconfig/geneve.py
@@ -0,0 +1,60 @@
+# Copyright 2019 VyOS maintainers and contributors <maintainers@vyos.io>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+
+
+from vyos.ifconfig.interface import Interface
+
+
+class GeneveIf(Interface):
+    """
+    Geneve: Generic Network Virtualization Encapsulation
+
+    For more information please refer to:
+    https://tools.ietf.org/html/draft-gross-geneve-00
+    https://www.redhat.com/en/blog/what-geneve
+    https://developers.redhat.com/blog/2019/05/17/an-introduction-to-linux-virtual-interfaces-tunnels/#geneve
+    https://lwn.net/Articles/644938/
+    """
+
+    default = {
+        'type': 'geneve',
+    }
+
+    def __init__(self, ifname, **kargs):
+        super().__init__(ifname, **kargs)
+
+    def _create(self):
+        cmd = 'ip link add name {} type geneve id {} remote {}' \
+            .format(self.config['ifname'], config['vni'], config['remote'])
+        self._cmd(cmd)
+
+        # interface is always A/D down. It needs to be enabled explicitly
+        self.set_state('down')
+
+    @staticmethod
+    def get_config():
+        """
+        GENEVE interfaces require a configuration when they are added using
+        iproute2. This static method will provide the configuration dictionary
+        used by this class.
+
+        Example:
+        >> dict = GeneveIf().get_config()
+        """
+        config = {
+            'vni': 0,
+            'remote': ''
+        }
+        return config
diff --git a/python/vyos/ifconfig/interface.py b/python/vyos/ifconfig/interface.py
new file mode 100644
index 000000000..a750bda3f
--- /dev/null
+++ b/python/vyos/ifconfig/interface.py
@@ -0,0 +1,836 @@
+# Copyright 2019 VyOS maintainers and contributors <maintainers@vyos.io>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+
+import os
+import re
+import jinja2
+import json
+import glob
+import time
+from copy import deepcopy
+
+import vyos.interfaces
+
+from vyos.validate import *     # should not * include
+from vyos.config import Config  # not used anymore
+from vyos import ConfigError
+
+from ipaddress import IPv4Network, IPv6Address
+from netifaces import ifaddresses, AF_INET, AF_INET6
+from time import sleep
+from os.path import isfile
+from tabulate import tabulate
+from hurry.filesize import size,alternative
+from datetime import timedelta
+
+from vyos.ifconfig.control import Control
+
+dhclient_base = r'/var/lib/dhcp/dhclient_'
+dhcp_cfg = """
+# generated by ifconfig.py
+option rfc3442-classless-static-routes code 121 = array of unsigned integer 8;
+timeout 60;
+retry 300;
+
+interface "{{ intf }}" {
+    send host-name "{{ hostname }}";
+    {% if client_id -%}
+    send dhcp-client-identifier "{{ client_id }}";
+    {% endif -%}
+    {% if vendor_class_id -%}
+    send vendor-class-identifier "{{ vendor_class_id }}";
+    {% endif -%}
+    request subnet-mask, broadcast-address, routers, domain-name-servers,
+        rfc3442-classless-static-routes, domain-name, interface-mtu;
+    require subnet-mask;
+}
+
+"""
+
+dhcpv6_cfg = """
+# generated by ifconfig.py
+interface "{{ intf }}" {
+    request routers, domain-name-servers, domain-name;
+}
+
+"""
+
+
+
+class Interface(Control):
+    options = []
+    required = []
+    default = {
+        'type': '',
+    }
+
+    _command_set = {
+        'mac': {
+            'validate': assert_mac,
+            'shellcmd': 'ip link set dev {ifname} address {value}',
+        },
+        'add_vrf': {
+            'shellcmd': 'ip link set dev {ifname} master {value}',
+        },
+        'del_vrf': {
+            'shellcmd': 'ip link set dev {ifname} nomaster {value}',
+        },
+    }
+
+    _sysfs_get = {
+        'mtu': {
+            'location': '/sys/class/net/{ifname}/mtu',
+        },
+    }
+
+    _sysfs_set = {
+        'alias': {
+            'convert': lambda name: name if name else '\0',
+            'location': '/sys/class/net/{ifname}/ifalias',
+        },
+        'mtu': {
+            'validate': assert_mtu,
+            'location': '/sys/class/net/{ifname}/mtu',
+        },
+        'arp_cache_tmo': {
+            'convert': lambda tmo: (int(tmo) * 1000),
+            'location': '/proc/sys/net/ipv4/neigh/{ifname}/base_reachable_time_ms',
+        },
+        'arp_filter': {
+            'validate': assert_boolean,
+            'location': '/proc/sys/net/ipv4/conf/{ifname}/arp_filter',
+        },
+        'arp_accept': {
+            'validate': lambda arp: assert_range(arp,0,2),
+            'location': '/proc/sys/net/ipv4/conf/{ifname}/arp_accept',
+        },
+        'arp_announce': {
+            'validate': assert_boolean,
+            'location': '/proc/sys/net/ipv4/conf/{ifname}/arp_announce',
+        },
+        'arp_ignore': {
+            'validate': assert_boolean,
+            'location': '/proc/sys/net/ipv4/conf/{ifname}/arp_ignore',
+        },
+        'proxy_arp': {
+            'validate': assert_boolean,
+            'location': '/proc/sys/net/ipv4/conf/{ifname}/proxy_arp',
+        },
+        'proxy_arp_pvlan': {
+            'validate': assert_boolean,
+            'location': '/proc/sys/net/ipv4/conf/{ifname}/proxy_arp_pvlan',
+        },
+        # link_detect vs link_filter name weirdness
+        'link_detect': {
+            'validate': lambda link: assert_range(link,0,3),
+            'location': '/proc/sys/net/ipv4/conf/{ifname}/link_filter',
+        },
+    }
+
+    def __init__(self, ifname, **kargs):
+        """
+        This is the base interface class which supports basic IP/MAC address
+        operations as well as DHCP(v6). Other interface which represent e.g.
+        and ethernet bridge are implemented as derived classes adding all
+        additional functionality.
+
+        For creation you will need to provide the interface type, otherwise
+        the existing interface is used
+
+        DEBUG:
+        This class has embedded debugging (print) which can be enabled by
+        creating the following file:
+        vyos@vyos# touch /tmp/vyos.ifconfig.debug
+
+        Example:
+        >>> from vyos.ifconfig import Interface
+        >>> i = Interface('eth0')
+        """
+
+        self.config = deepcopy(self.default)
+        self.config['ifname'] = ifname
+
+        for k in self.options:
+            if k in kargs:
+                self.config[k] = kargs[k]
+
+        for k in self.required:
+            if k not in kargs:
+                raise ConfigError('missing required option {} for {}'.format(k,self.__class__))
+
+        if not os.path.exists('/sys/class/net/{}'.format(self.config['ifname'])):
+            if not self.config['type']:
+                raise Exception('interface "{}" not found'.format(self.config['ifname']))
+            self._create()
+
+        # per interface DHCP config files
+        self._dhcp_cfg_file = dhclient_base + self.config['ifname'] + '.conf'
+        self._dhcp_pid_file = dhclient_base + self.config['ifname'] + '.pid'
+        self._dhcp_lease_file = dhclient_base + self.config['ifname'] + '.leases'
+
+        # per interface DHCPv6 config files
+        self._dhcpv6_cfg_file = dhclient_base + self.config['ifname'] + '.v6conf'
+        self._dhcpv6_pid_file = dhclient_base + self.config['ifname'] + '.v6pid'
+        self._dhcpv6_lease_file = dhclient_base + self.config['ifname'] + '.v6leases'
+
+        # DHCP options
+        self._dhcp_options = {
+            'intf' : self.config['ifname'],
+            'hostname' : '',
+            'client_id' : '',
+            'vendor_class_id' : ''
+        }
+
+        # DHCPv6 options
+        self._dhcpv6_options = {
+            'intf' : self.config['ifname'],
+            'dhcpv6_prm_only' : False,
+            'dhcpv6_temporary' : False
+        }
+
+        # list of assigned IP addresses
+        self._addr = []
+
+    def _create(self):
+        cmd = 'ip link add dev {ifname} type {type}'.format(**self.config)
+        self._cmd(cmd)
+
+    def remove(self):
+        """
+        Remove interface from operating system. Removing the interface
+        deconfigures all assigned IP addresses and clear possible DHCP(v6)
+        client processes.
+
+        Example:
+        >>> from vyos.ifconfig import Interface
+        >>> i = Interface('eth0')
+        >>> i.remove()
+        """
+        # stop DHCP(v6) if running
+        self._del_dhcp()
+        self._del_dhcpv6()
+
+        # remove all assigned IP addresses from interface - this is a bit redundant
+        # as the kernel will remove all addresses on interface deletion, but we
+        # can not delete ALL interfaces, see below
+        for addr in self.get_addr():
+            self.del_addr(addr)
+
+        # ---------------------------------------------------------------------
+        # A code refactoring is required as this type check is present as
+        # Interface implement behaviour for one of it's sub-class.
+
+        # It is required as the current pattern for vlan is:
+        # Interface('name').remove() to delete an interface
+        # The code should be modified to have a class method called connect and
+        # have Interface.connect('name').remove()
+
+        # each subclass should register within Interface the pattern for that
+        # interface ie: (ethX, etc.) and use this to create an instance of
+        # the right class (EthernetIf, ...)
+
+        # Ethernet interfaces can not be removed
+
+        # Commented out as nowhere in the code do we call Interface()
+        # This would also cause an import loop
+        # if self.__class__ == EthernetIf:
+        #     return
+
+        # ---------------------------------------------------------------------
+
+        self._delete()
+
+    def _delete(self):
+        # NOTE (Improvement):
+        # after interface removal no other commands should be allowed
+        # to be called and instead should raise an Exception:
+        cmd = 'ip link del dev {}'.format(self.config['ifname'])
+        return self._cmd(cmd)
+
+    def get_mtu(self):
+        """
+        Get/set interface mtu in bytes.
+
+        Example:
+        >>> from vyos.ifconfig import Interface
+        >>> Interface('eth0').get_mtu()
+        '1500'
+        """
+        return self.get_interface('mtu')
+
+    def set_mtu(self, mtu):
+        """
+        Get/set interface mtu in bytes.
+
+        Example:
+        >>> from vyos.ifconfig import Interface
+        >>> Interface('eth0').set_mtu(1400)
+        >>> Interface('eth0').get_mtu()
+        '1400'
+        """
+        return self.set_interface('mtu', mtu)
+
+    def set_mac(self, mac):
+        """
+        Set interface MAC (Media Access Contrl) address to given value.
+
+        Example:
+        >>> from vyos.ifconfig import Interface
+        >>> Interface('eth0').set_mac('00:50:ab:cd:ef:01')
+        """
+        self.set_interface('mac', mac)
+
+    def add_vrf(self, vrf):
+        """
+        Add interface to given VRF instance.
+
+        Example:
+        >>> from vyos.ifconfig import Interface
+        >>> Interface('eth0').add_vrf('foo')
+        """
+        self.set_interface('add_vrf', vrf)
+
+    def del_vrf(self, vrf):
+        """
+        Remove interface from given VRF instance.
+
+        Example:
+        >>> from vyos.ifconfig import Interface
+        >>> Interface('eth0').del_vrf('foo')
+        """
+        self.set_interface('del_vrf', vrf)
+
+    def set_arp_cache_tmo(self, tmo):
+        """
+        Set ARP cache timeout value in seconds. Internal Kernel representation
+        is in milliseconds.
+
+        Example:
+        >>> from vyos.ifconfig import Interface
+        >>> Interface('eth0').set_arp_cache_tmo(40)
+        """
+        return self.set_interface('arp_cache_tmo', tmo)
+
+    def set_arp_filter(self, arp_filter):
+        """
+        Filter ARP requests
+
+        1 - Allows you to have multiple network interfaces on the same
+            subnet, and have the ARPs for each interface be answered
+            based on whether or not the kernel would route a packet from
+            the ARP'd IP out that interface (therefore you must use source
+            based routing for this to work). In other words it allows control
+            of which cards (usually 1) will respond to an arp request.
+
+        0 - (default) The kernel can respond to arp requests with addresses
+            from other interfaces. This may seem wrong but it usually makes
+            sense, because it increases the chance of successful communication.
+            IP addresses are owned by the complete host on Linux, not by
+            particular interfaces. Only for more complex setups like load-
+            balancing, does this behaviour cause problems.
+        """
+        return self.set_interface('arp_filter', arp_filter)
+
+    def set_arp_accept(self, arp_accept):
+        """
+        Define behavior for gratuitous ARP frames who's IP is not
+        already present in the ARP table:
+        0 - don't create new entries in the ARP table
+        1 - create new entries in the ARP table
+
+        Both replies and requests type gratuitous arp will trigger the
+        ARP table to be updated, if this setting is on.
+
+        If the ARP table already contains the IP address of the
+        gratuitous arp frame, the arp table will be updated regardless
+        if this setting is on or off.
+        """
+        return self.set_interface('arp_accept', arp_accept)
+
+    def set_arp_announce(self, arp_announce):
+        """
+        Define different restriction levels for announcing the local
+        source IP address from IP packets in ARP requests sent on
+        interface:
+        0 - (default) Use any local address, configured on any interface
+        1 - Try to avoid local addresses that are not in the target's
+            subnet for this interface. This mode is useful when target
+            hosts reachable via this interface require the source IP
+            address in ARP requests to be part of their logical network
+            configured on the receiving interface. When we generate the
+            request we will check all our subnets that include the
+            target IP and will preserve the source address if it is from
+            such subnet.
+
+        Increasing the restriction level gives more chance for
+        receiving answer from the resolved target while decreasing
+        the level announces more valid sender's information.
+        """
+        return self.set_interface('arp_announce', arp_announce)
+
+    def set_arp_ignore(self, arp_ignore):
+        """
+        Define different modes for sending replies in response to received ARP
+        requests that resolve local target IP addresses:
+
+        0 - (default): reply for any local target IP address, configured
+            on any interface
+        1 - reply only if the target IP address is local address
+            configured on the incoming interface
+        """
+        return self.set_interface('arp_ignore', arp_ignore)
+
+    def set_link_detect(self, link_filter):
+        """
+        Configure kernel response in packets received on interfaces that are 'down'
+
+        0 - Allow packets to be received for the address on this interface
+            even if interface is disabled or no carrier.
+
+        1 - Ignore packets received if interface associated with the incoming
+            address is down.
+
+        2 - Ignore packets received if interface associated with the incoming
+            address is down or has no carrier.
+
+        Default value is 0. Note that some distributions enable it in startup
+        scripts.
+
+        Example:
+        >>> from vyos.ifconfig import Interface
+        >>> Interface('eth0').set_link_detect(1)
+        """
+        return self.set_interface('link_detect', link_filter)
+
+    def set_alias(self, ifalias=''):
+        """
+        Set interface alias name used by e.g. SNMP
+
+        Example:
+        >>> from vyos.ifconfig import Interface
+        >>> Interface('eth0').set_alias('VyOS upstream interface')
+
+        to clear alias e.g. delete it use:
+
+        >>> Interface('eth0').set_ifalias('')
+        """
+        self.set_interface('alias', ifalias)
+
+    def get_state(self):
+        """
+        Enable (up) / Disable (down) an interface
+
+        Example:
+        >>> from vyos.ifconfig import Interface
+        >>> Interface('eth0').get_state()
+        'up'
+        """
+        cmd = 'ip -json link show dev {}'.format(self.config['ifname'])
+        tmp = self._cmd(cmd)
+        out = json.loads(tmp)
+        return out[0]['operstate'].lower()
+
+    def set_state(self, state):
+        """
+        Enable (up) / Disable (down) an interface
+
+        Example:
+        >>> from vyos.ifconfig import Interface
+        >>> Interface('eth0').set_state('down')
+        >>> Interface('eth0').get_state()
+        'down'
+        """
+        if state not in ['up', 'down']:
+            raise ValueError('state must be "up" or "down"')
+
+        # Assemble command executed on system. Unfortunately there is no way
+        # to up/down an interface via sysfs
+        cmd = 'ip link set dev {} {}'.format(self.config['ifname'], state)
+        return self._cmd(cmd)
+
+    def set_proxy_arp(self, enable):
+        """
+        Set per interface proxy ARP configuration
+
+        Example:
+        >>> from vyos.ifconfig import Interface
+        >>> Interface('eth0').set_proxy_arp(1)
+        """
+        self.set_interface('proxy_arp', enable)
+
+    def set_proxy_arp_pvlan(self, enable):
+        """
+        Private VLAN proxy arp.
+        Basically allow proxy arp replies back to the same interface
+        (from which the ARP request/solicitation was received).
+
+        This is done to support (ethernet) switch features, like RFC
+        3069, where the individual ports are NOT allowed to
+        communicate with each other, but they are allowed to talk to
+        the upstream router.  As described in RFC 3069, it is possible
+        to allow these hosts to communicate through the upstream
+        router by proxy_arp'ing. Don't need to be used together with
+        proxy_arp.
+
+        This technology is known by different names:
+        In RFC 3069 it is called VLAN Aggregation.
+        Cisco and Allied Telesyn call it Private VLAN.
+        Hewlett-Packard call it Source-Port filtering or port-isolation.
+        Ericsson call it MAC-Forced Forwarding (RFC Draft).
+
+        Example:
+        >>> from vyos.ifconfig import Interface
+        >>> Interface('eth0').set_proxy_arp_pvlan(1)
+        """
+        self.set_interface('proxy_arp_pvlan', enable)
+
+    def get_addr(self):
+        """
+        Retrieve assigned IPv4 and IPv6 addresses from given interface.
+        This is done using the netifaces and ipaddress python modules.
+
+        Example:
+        >>> from vyos.ifconfig import Interface
+        >>> Interface('eth0').get_addrs()
+        ['172.16.33.30/24', 'fe80::20c:29ff:fe11:a174/64']
+        """
+
+        ipv4 = []
+        ipv6 = []
+
+        if AF_INET in ifaddresses(self.config['ifname']).keys():
+            for v4_addr in ifaddresses(self.config['ifname'])[AF_INET]:
+                # we need to manually assemble a list of IPv4 address/prefix
+                prefix = '/' + \
+                    str(IPv4Network('0.0.0.0/' + v4_addr['netmask']).prefixlen)
+                ipv4.append(v4_addr['addr'] + prefix)
+
+        if AF_INET6 in ifaddresses(self.config['ifname']).keys():
+            for v6_addr in ifaddresses(self.config['ifname'])[AF_INET6]:
+                # Note that currently expanded netmasks are not supported. That means
+                # 2001:db00::0/24 is a valid argument while 2001:db00::0/ffff:ff00:: not.
+                # see https://docs.python.org/3/library/ipaddress.html
+                bits = bin(
+                    int(v6_addr['netmask'].replace(':', ''), 16)).count('1')
+                prefix = '/' + str(bits)
+
+                # we alsoneed to remove the interface suffix on link local
+                # addresses
+                v6_addr['addr'] = v6_addr['addr'].split('%')[0]
+                ipv6.append(v6_addr['addr'] + prefix)
+
+        return ipv4 + ipv6
+
+    def add_addr(self, addr):
+        """
+        Add IP(v6) address to interface. Address is only added if it is not
+        already assigned to that interface.
+
+        addr: can be an IPv4 address, IPv6 address, dhcp or dhcpv6!
+              IPv4: add IPv4 address to interface
+              IPv6: add IPv6 address to interface
+              dhcp: start dhclient (IPv4) on interface
+              dhcpv6: start dhclient (IPv6) on interface
+
+        Example:
+        >>> from vyos.ifconfig import Interface
+        >>> j = Interface('eth0')
+        >>> j.add_addr('192.0.2.1/24')
+        >>> j.add_addr('2001:db8::ffff/64')
+        >>> j.get_addr()
+        ['192.0.2.1/24', '2001:db8::ffff/64']
+        """
+
+        # cache new IP address which is assigned to interface
+        self._addr.append(addr)
+
+        # we can not have both DHCP and static IPv4 addresses assigned to an interface
+        if 'dhcp' in self._addr:
+            for addr in self._addr:
+                # do not change below 'if' ordering esle you will get an exception as:
+                #   ValueError: 'dhcp' does not appear to be an IPv4 or IPv6 address
+                if addr != 'dhcp' and is_ipv4(addr):
+                    raise ConfigError("Can't configure both static IPv4 and DHCP address on the same interface")
+
+        if addr == 'dhcp':
+            self._set_dhcp()
+        elif addr == 'dhcpv6':
+            self._set_dhcpv6()
+        else:
+            if not is_intf_addr_assigned(self.config['ifname'], addr):
+                cmd = 'ip addr add "{}" dev "{}"'.format(addr, self.config['ifname'])
+                return self._cmd(cmd)
+
+    def del_addr(self, addr):
+        """
+        Delete IP(v6) address to interface. Address is only added if it is
+        assigned to that interface.
+
+        addr: can be an IPv4 address, IPv6 address, dhcp or dhcpv6!
+              IPv4: delete IPv4 address from interface
+              IPv6: delete IPv6 address from interface
+              dhcp: stop dhclient (IPv4) on interface
+              dhcpv6: stop dhclient (IPv6) on interface
+
+        Example:
+        >>> from vyos.ifconfig import Interface
+        >>> j = Interface('eth0')
+        >>> j.add_addr('2001:db8::ffff/64')
+        >>> j.add_addr('192.0.2.1/24')
+        >>> j.get_addr()
+        ['192.0.2.1/24', '2001:db8::ffff/64']
+        >>> j.del_addr('192.0.2.1/24')
+        >>> j.get_addr()
+        ['2001:db8::ffff/64']
+        """
+        if addr == 'dhcp':
+            self._del_dhcp()
+        elif addr == 'dhcpv6':
+            self._del_dhcpv6()
+        else:
+            if is_intf_addr_assigned(self.config['ifname'], addr):
+                cmd = 'ip addr del "{}" dev "{}"'.format(addr, self.config['ifname'])
+                return self._cmd(cmd)
+
+
+    def get_dhcp_options(self):
+        """
+        Return dictionary with supported DHCP options.
+
+        Dictionary should be altered and send back via set_dhcp_options()
+        so those options are applied when DHCP is run.
+        """
+        return self._dhcp_options
+
+    def set_dhcp_options(self, options):
+        """
+        Store new DHCP options used by next run of DHCP client.
+        """
+        self._dhcp_options = options
+
+    def get_dhcpv6_options(self):
+        """
+        Return dictionary with supported DHCPv6 options.
+
+        Dictionary should be altered and send back via set_dhcp_options()
+        so those options are applied when DHCP is run.
+        """
+        return self._dhcpv6_options
+
+    def set_dhcpv6_options(self, options):
+        """
+        Store new DHCP options used by next run of DHCP client.
+        """
+        self._dhcpv6_options = options
+
+    # replace dhcpv4/v6 with systemd.networkd?
+    def _set_dhcp(self):
+        """
+        Configure interface as DHCP client. The dhclient binary is automatically
+        started in background!
+
+        Example:
+
+        >>> from vyos.ifconfig import Interface
+        >>> j = Interface('eth0')
+        >>> j.set_dhcp()
+        """
+
+        dhcp = self.get_dhcp_options()
+        if not dhcp['hostname']:
+            # read configured system hostname.
+            # maybe change to vyos hostd client ???
+            with open('/etc/hostname', 'r') as f:
+                dhcp['hostname'] = f.read().rstrip('\n')
+
+        # render DHCP configuration
+        tmpl = jinja2.Template(dhcp_cfg)
+        dhcp_text = tmpl.render(dhcp)
+        with open(self._dhcp_cfg_file, 'w') as f:
+            f.write(dhcp_text)
+
+        cmd  = 'start-stop-daemon --start --quiet --pidfile ' + \
+            self._dhcp_pid_file
+        cmd += ' --exec /sbin/dhclient --'
+        # now pass arguments to dhclient binary
+        cmd += ' -4 -nw -cf {} -pf {} -lf {} {}'.format(
+            self._dhcp_cfg_file, self._dhcp_pid_file, self._dhcp_lease_file, self.config['ifname'])
+        return self._cmd(cmd)
+
+
+    def _del_dhcp(self):
+        """
+        De-configure interface as DHCP clinet. All auto generated files like
+        pid, config and lease will be removed.
+
+        Example:
+
+        >>> from vyos.ifconfig import Interface
+        >>> j = Interface('eth0')
+        >>> j.del_dhcp()
+        """
+        pid = 0
+        if os.path.isfile(self._dhcp_pid_file):
+            with open(self._dhcp_pid_file, 'r') as f:
+                pid = int(f.read())
+        else:
+            self._debug_msg('No DHCP client PID found')
+            return None
+
+        # stop dhclient, we need to call dhclient and tell it should release the
+        # aquired IP address. tcpdump tells me:
+        # 172.16.35.103.68 > 172.16.35.254.67: [bad udp cksum 0xa0cb -> 0xb943!] BOOTP/DHCP, Request from 00:50:56:9d:11:df, length 300, xid 0x620e6946, Flags [none] (0x0000)
+        #  Client-IP 172.16.35.103
+        #  Client-Ethernet-Address 00:50:56:9d:11:df
+        #  Vendor-rfc1048 Extensions
+        #    Magic Cookie 0x63825363
+        #    DHCP-Message Option 53, length 1: Release
+        #    Server-ID Option 54, length 4: 172.16.35.254
+        #    Hostname Option 12, length 10: "vyos"
+        #
+        cmd = '/sbin/dhclient -cf {} -pf {} -lf {} -r {}'.format(
+                self._dhcp_cfg_file, self._dhcp_pid_file, self._dhcp_lease_file, self.config['ifname'])
+        self._cmd(cmd)
+
+        # cleanup old config file
+        if os.path.isfile(self._dhcp_cfg_file):
+            os.remove(self._dhcp_cfg_file)
+
+        # cleanup old pid file
+        if os.path.isfile(self._dhcp_pid_file):
+            os.remove(self._dhcp_pid_file)
+
+        # cleanup old lease file
+        if os.path.isfile(self._dhcp_lease_file):
+            os.remove(self._dhcp_lease_file)
+
+
+    def _set_dhcpv6(self):
+        """
+        Configure interface as DHCPv6 client. The dhclient binary is automatically
+        started in background!
+
+        Example:
+
+        >>> from vyos.ifconfig import Interface
+        >>> j = Interface('eth0')
+        >>> j.set_dhcpv6()
+        """
+        dhcpv6 = self.get_dhcpv6_options()
+
+        # better save then sorry .. should be checked in interface script
+        # but if you missed it we are safe!
+        if dhcpv6['dhcpv6_prm_only'] and dhcpv6['dhcpv6_temporary']:
+            raise Exception('DHCPv6 temporary and parameters-only options are mutually exclusive!')
+
+        # render DHCP configuration
+        tmpl = jinja2.Template(dhcpv6_cfg)
+        dhcpv6_text = tmpl.render(dhcpv6)
+        with open(self._dhcpv6_cfg_file, 'w') as f:
+            f.write(dhcpv6_text)
+
+        # https://bugs.launchpad.net/ubuntu/+source/ifupdown/+bug/1447715
+        #
+        # wee need to wait for IPv6 DAD to finish once and interface is added
+        # this suxx :-(
+        sleep(5)
+
+        # no longer accept router announcements on this interface
+        self._write_sysfs('/proc/sys/net/ipv6/conf/{}/accept_ra'
+              .format(self.config['ifname']), 0)
+
+        # assemble command-line to start DHCPv6 client (dhclient)
+        cmd  = 'start-stop-daemon --start --quiet --pidfile ' + \
+            self._dhcpv6_pid_file
+        cmd += ' --exec /sbin/dhclient --'
+        # now pass arguments to dhclient binary
+        cmd += ' -6 -nw -cf {} -pf {} -lf {}'.format(
+            self._dhcpv6_cfg_file, self._dhcpv6_pid_file, self._dhcpv6_lease_file)
+
+        # add optional arguments
+        if dhcpv6['dhcpv6_prm_only']:
+            cmd += ' -S'
+        if dhcpv6['dhcpv6_temporary']:
+            cmd += ' -T'
+
+        cmd += ' {}'.format(self.config['ifname'])
+        return self._cmd(cmd)
+
+
+    def _del_dhcpv6(self):
+        """
+        De-configure interface as DHCPv6 clinet. All auto generated files like
+        pid, config and lease will be removed.
+
+        Example:
+
+        >>> from vyos.ifconfig import Interface
+        >>> j = Interface('eth0')
+        >>> j.del_dhcpv6()
+        """
+        pid = 0
+        if os.path.isfile(self._dhcpv6_pid_file):
+            with open(self._dhcpv6_pid_file, 'r') as f:
+                pid = int(f.read())
+        else:
+            self._debug_msg('No DHCPv6 client PID found')
+            return None
+
+        # stop dhclient
+        cmd = 'start-stop-daemon --stop --quiet --pidfile {}'.format(self._dhcpv6_pid_file)
+        self._cmd(cmd)
+
+        # accept router announcements on this interface
+        self._write_sysfs('/proc/sys/net/ipv6/conf/{}/accept_ra'
+              .format(self.config['ifname']), 1)
+
+        # cleanup old config file
+        if os.path.isfile(self._dhcpv6_cfg_file):
+            os.remove(self._dhcpv6_cfg_file)
+
+        # cleanup old pid file
+        if os.path.isfile(self._dhcpv6_pid_file):
+            os.remove(self._dhcpv6_pid_file)
+
+        # cleanup old lease file
+        if os.path.isfile(self._dhcpv6_lease_file):
+            os.remove(self._dhcpv6_lease_file)
+
+    def op_show_interface_stats(self):
+        stats = self.get_interface_stats()
+        rx = [['bytes','packets','errors','dropped','overrun','mcast'],[stats['rx_bytes'],stats['rx_packets'],stats['rx_errors'],stats['rx_dropped'],stats['rx_over_errors'],stats['multicast']]]
+        tx = [['bytes','packets','errors','dropped','carrier','collisions'],[stats['tx_bytes'],stats['tx_packets'],stats['tx_errors'],stats['tx_dropped'],stats['tx_carrier_errors'],stats['collisions']]]
+        output = "RX: \n"
+        output += tabulate(rx,headers="firstrow",numalign="right",tablefmt="plain")
+        output += "\n\nTX: \n"
+        output += tabulate(tx,headers="firstrow",numalign="right",tablefmt="plain")
+        print('  '.join(('\n'+output.lstrip()).splitlines(True)))
+
+    def get_interface_stats(self):
+        interface_stats = dict()
+        devices = [f for f in glob.glob("/sys/class/net/**/statistics")]
+        for dev_path in devices:
+            metrics = [f for f in glob.glob(dev_path +"/**")]
+            dev = re.findall(r"/sys/class/net/(.*)/statistics",dev_path)[0]
+            dev_dict = dict()
+            for metric_path in metrics:
+                metric = metric_path.replace(dev_path+"/","")
+                if isfile(metric_path):
+                    data = open(metric_path, 'r').read()[:-1]
+                    dev_dict[metric] = int(data)
+            interface_stats[dev] = dev_dict
+
+        return interface_stats[self.config['ifname']]
+
diff --git a/python/vyos/ifconfig/l2tpv3.py b/python/vyos/ifconfig/l2tpv3.py
new file mode 100644
index 000000000..491fd24a7
--- /dev/null
+++ b/python/vyos/ifconfig/l2tpv3.py
@@ -0,0 +1,108 @@
+# Copyright 2019 VyOS maintainers and contributors <maintainers@vyos.io>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+
+
+import os
+
+from vyos.ifconfig.interface import Interface
+
+
+class L2TPv3If(Interface):
+    """
+    The Linux bonding driver provides a method for aggregating multiple network
+    interfaces into a single logical "bonded" interface. The behavior of the
+    bonded interfaces depends upon the mode; generally speaking, modes provide
+    either hot standby or load balancing services. Additionally, link integrity
+    monitoring may be performed.
+    """
+
+    options = Interface.options + \
+        ['tunnel_id', 'peer_tunnel_id', 'local_port', 'remote_port',
+            'encapsulation', 'local_address', 'remote_address']
+    default = {
+        'type': 'l2tp',
+    }
+
+    def __init__(self, ifname, **kargs):
+        super().__init__(ifname, **kargs)
+
+    def _create(self):
+        # create tunnel interface
+        cmd = 'ip l2tp add tunnel tunnel_id {} '.format(config['tunnel_id'])
+        cmd += 'peer_tunnel_id {} '.format(config['peer_tunnel_id'])
+        cmd += 'udp_sport {} '.format(config['local_port'])
+        cmd += 'udp_dport {} '.format(config['remote_port'])
+        cmd += 'encap {} '.format(config['encapsulation'])
+        cmd += 'local {} '.format(config['local_address'])
+        cmd += 'remote {} '.format(config['remote_address'])
+        self._cmd(cmd)
+
+        # setup session
+        cmd = 'ip l2tp add session name {} '.format(self.config['ifname'])
+        cmd += 'tunnel_id {} '.format(config['tunnel_id'])
+        cmd += 'session_id {} '.format(config['session_id'])
+        cmd += 'peer_session_id  {} '.format(config['peer_session_id'])
+        self._cmd(cmd)
+
+        # interface is always A/D down. It needs to be enabled explicitly
+        self.set_state('down')
+
+    def remove(self):
+        """
+        Remove interface from operating system. Removing the interface
+        deconfigures all assigned IP addresses.
+        Example:
+        >>> from vyos.ifconfig import L2TPv3If
+        >>> i = L2TPv3If('l2tpeth0')
+        >>> i.remove()
+        """
+
+        if os.path.exists('/sys/class/net/{}'.format(self.config['ifname'])):
+            # interface is always A/D down. It needs to be enabled explicitly
+            self.set_state('down')
+
+            if self._config['tunnel_id'] and self._config['session_id']:
+                cmd = 'ip l2tp del session tunnel_id {} '.format(
+                    self._config['tunnel_id'])
+                cmd += 'session_id {} '.format(self._config['session_id'])
+                self._cmd(cmd)
+
+            if self._config['tunnel_id']:
+                cmd = 'ip l2tp del tunnel tunnel_id {} '.format(
+                    self._config['tunnel_id'])
+                self._cmd(cmd)
+
+    @staticmethod
+    def get_config():
+        """
+        L2TPv3 interfaces require a configuration when they are added using
+        iproute2. This static method will provide the configuration dictionary
+        used by this class.
+
+        Example:
+        >> dict = L2TPv3If().get_config()
+        """
+        config = {
+            'peer_tunnel_id': '',
+            'local_port': 0,
+            'remote_port': 0,
+            'encapsulation': 'udp',
+            'local_address': '',
+            'remote_address': '',
+            'session_id': '',
+            'tunnel_id': '',
+            'peer_session_id': ''
+        }
+        return config
diff --git a/python/vyos/ifconfig/loopback.py b/python/vyos/ifconfig/loopback.py
new file mode 100644
index 000000000..410a19dcf
--- /dev/null
+++ b/python/vyos/ifconfig/loopback.py
@@ -0,0 +1,50 @@
+# Copyright 2019 VyOS maintainers and contributors <maintainers@vyos.io>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+
+
+from vyos.ifconfig.interface import Interface
+
+
+class LoopbackIf(Interface):
+    """
+    The loopback device is a special, virtual network interface that your router
+    uses to communicate with itself.
+    """
+
+    default = {
+        'type': 'loopback',
+    }
+
+    def __init__(self, ifname, **kargs):
+        super().__init__(ifname, **kargs)
+
+    def remove(self):
+        """
+        Loopback interface can not be deleted from operating system. We can
+        only remove all assigned IP addresses.
+
+        Example:
+        >>> from vyos.ifconfig import Interface
+        >>> i = LoopbackIf('lo').remove()
+        """
+        # remove all assigned IP addresses from interface
+        for addr in self.get_addr():
+            if addr in ["127.0.0.1/8", "::1/128"]:
+                # Do not allow deletion of the default loopback addresses as
+                # this will cause weird system behavior like snmp/ssh no longer
+                # operating as expected, see https://phabricator.vyos.net/T2034.
+                continue
+
+            self.del_addr(addr)
diff --git a/python/vyos/ifconfig/macvlan.py b/python/vyos/ifconfig/macvlan.py
new file mode 100644
index 000000000..a86f84f3e
--- /dev/null
+++ b/python/vyos/ifconfig/macvlan.py
@@ -0,0 +1,61 @@
+# Copyright 2019 VyOS maintainers and contributors <maintainers@vyos.io>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+
+
+from vyos.ifconfig.vlan import VLANIf
+
+
+class MACVLANIf(VLANIf):
+    """
+    Abstraction of a Linux MACvlan interface
+    """
+
+    options = VLANIf.options + ['link', 'mode']
+    default = {
+        'type': 'macvlan',
+    }
+
+    def __init__(self, ifname, **kargs):
+        super().__init__(ifname, **kargs)
+
+    def _create(self):
+        cmd = 'ip link add {ifname} link {link} type macvlan mode {mode}'.format(
+            **self.config)
+        self._cmd(cmd)
+
+    @staticmethod
+    def get_config():
+        """
+        VXLAN interfaces require a configuration when they are added using
+        iproute2. This static method will provide the configuration dictionary
+        used by this class.
+
+        Example:
+        >> dict = MACVLANIf().get_config()
+        """
+        config = {
+            'address': '',
+            'link': 0,
+            'mode': ''
+        }
+        return config
+
+    def set_mode(self, mode):
+        """
+        """
+
+        cmd = 'ip link set dev {} type macvlan mode {}'.format(
+            self.config['ifname'], mode)
+        return self._cmd(cmd)
diff --git a/python/vyos/ifconfig/stp.py b/python/vyos/ifconfig/stp.py
new file mode 100644
index 000000000..741322d0d
--- /dev/null
+++ b/python/vyos/ifconfig/stp.py
@@ -0,0 +1,69 @@
+# Copyright 2019 VyOS maintainers and contributors <maintainers@vyos.io>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+
+
+from vyos.ifconfig.interface import Interface
+
+from vyos.validate import *
+
+
+class STPIf(Interface):
+    """
+    A spanning-tree capable interface. This applies only to bridge port member
+    interfaces!
+    """
+    _sysfs_set = {**Interface._sysfs_set, **{
+        'path_cost': {
+            # XXX: we should set a maximum
+            'validate': assert_positive,
+            'location': '/sys/class/net/{ifname}/brport/path_cost',
+            'errormsg': '{ifname} is not a bridge port member'
+        },
+        'path_priority': {
+            # XXX: we should set a maximum
+            'validate': assert_positive,
+            'location': '/sys/class/net/{ifname}/brport/priority',
+            'errormsg': '{ifname} is not a bridge port member'
+        },
+    }}
+
+    default = {
+        'type': 'stp',
+    }
+
+    def __init__(self, ifname, **kargs):
+        super().__init__(ifname, **kargs)
+
+    def set_path_cost(self, cost):
+        """
+        Set interface path cost, only relevant for STP enabled interfaces
+
+        Example:
+
+        >>> from vyos.ifconfig import Interface
+        >>> Interface('eth0').set_path_cost(4)
+        """
+        self.set_interface('path_cost', cost)
+
+    def set_path_priority(self, priority):
+        """
+        Set interface path priority, only relevant for STP enabled interfaces
+
+        Example:
+
+        >>> from vyos.ifconfig import Interface
+        >>> Interface('eth0').set_path_priority(4)
+        """
+        self.set_interface('path_priority', priority)
diff --git a/python/vyos/ifconfig/vlan.py b/python/vyos/ifconfig/vlan.py
new file mode 100644
index 000000000..ad5d066c4
--- /dev/null
+++ b/python/vyos/ifconfig/vlan.py
@@ -0,0 +1,134 @@
+# Copyright 2019 VyOS maintainers and contributors <maintainers@vyos.io>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+
+
+import os
+import re
+
+from vyos.ifconfig.interface import Interface
+
+
+class VLANIf(Interface):
+    """
+    This class handels the creation and removal of a VLAN interface. It serves
+    as base class for BondIf and EthernetIf.
+    """
+
+    default = {
+        'type': 'vlan',
+    }
+
+    def __init__(self, ifname, **kargs):
+        super().__init__(ifname, **kargs)
+
+    def remove(self):
+        """
+        Remove interface from operating system. Removing the interface
+        deconfigures all assigned IP addresses and clear possible DHCP(v6)
+        client processes.
+
+        Example:
+        >>> from vyos.ifconfig import Interface
+        >>> i = Interface('eth0')
+        >>> i.remove()
+        """
+        # Do we have sub interfaces (VLANs)? We apply a regex matching
+        # subinterfaces (indicated by a .) of a parent interface.
+        #
+        # As interfaces need to be deleted "in order" starting from Q-in-Q
+        # we delete them first.
+        vlan_ifs = [f for f in os.listdir(r'/sys/class/net')
+                    if re.match(self.config['ifname'] + r'(?:\.\d+)(?:\.\d+)', f)]
+
+        for vlan in vlan_ifs:
+            Interface(vlan).remove()
+
+        # After deleting all Q-in-Q interfaces delete other VLAN interfaces
+        # which probably acted as parent to Q-in-Q or have been regular 802.1q
+        # interface.
+        vlan_ifs = [f for f in os.listdir(r'/sys/class/net')
+                    if re.match(self.config['ifname'] + r'(?:\.\d+)', f)]
+
+        for vlan in vlan_ifs:
+            Interface(vlan).remove()
+
+        # All subinterfaces are now removed, continue on the physical interface
+        super().remove()
+
+    def add_vlan(self, vlan_id, ethertype='', ingress_qos='', egress_qos=''):
+        """
+        A virtual LAN (VLAN) is any broadcast domain that is partitioned and
+        isolated in a computer network at the data link layer (OSI layer 2).
+        Use this function to create a new VLAN interface on a given physical
+        interface.
+
+        This function creates both 802.1q and 802.1ad (Q-in-Q) interfaces. Proto
+        parameter is used to indicate VLAN type.
+
+        A new object of type VLANIf is returned once the interface has been
+        created.
+
+        @param ethertype: If specified, create 802.1ad or 802.1q Q-in-Q VLAN
+                          interface
+        @param ingress_qos: Defines a mapping of VLAN header prio field to the
+                            Linux internal packet priority on incoming frames.
+        @param ingress_qos: Defines a mapping of Linux internal packet priority
+                            to VLAN header prio field but for outgoing frames.
+
+        Example:
+        >>> from vyos.ifconfig import VLANIf
+        >>> i = VLANIf('eth0')
+        >>> i.add_vlan(10)
+        """
+        vlan_ifname = self.config['ifname'] + '.' + str(vlan_id)
+        if not os.path.exists('/sys/class/net/{}'.format(vlan_ifname)):
+            self._vlan_id = int(vlan_id)
+
+            if ethertype:
+                self._ethertype = ethertype
+                ethertype = 'proto {}'.format(ethertype)
+
+            # Optional ingress QOS mapping
+            opt_i = ''
+            if ingress_qos:
+                opt_i = 'ingress-qos-map ' + ingress_qos
+            # Optional egress QOS mapping
+            opt_e = ''
+            if egress_qos:
+                opt_e = 'egress-qos-map ' + egress_qos
+
+            # create interface in the system
+            cmd = 'ip link add link {ifname} name {ifname}.{vlan} type vlan {proto} id {vlan} {opt_e} {opt_i}' \
+                .format(ifname=self.config['ifname'], vlan=self._vlan_id, proto=ethertype, opt_e=opt_e, opt_i=opt_i)
+            self._cmd(cmd)
+
+        # return new object mapping to the newly created interface
+        # we can now work on this object for e.g. IP address setting
+        # or interface description and so on
+        return VLANIf(vlan_ifname)
+
+    def del_vlan(self, vlan_id):
+        """
+        Remove VLAN interface from operating system. Removing the interface
+        deconfigures all assigned IP addresses and clear possible DHCP(v6)
+        client processes.
+
+        Example:
+        >>> from vyos.ifconfig import VLANIf
+        >>> i = VLANIf('eth0.10')
+        >>> i.del_vlan()
+        """
+        vlan_ifname = self.config['ifname'] + '.' + str(vlan_id)
+        VLANIf(vlan_ifname).remove()
diff --git a/python/vyos/ifconfig/vxlan.py b/python/vyos/ifconfig/vxlan.py
new file mode 100644
index 000000000..bc2ec508b
--- /dev/null
+++ b/python/vyos/ifconfig/vxlan.py
@@ -0,0 +1,91 @@
+# Copyright 2019 VyOS maintainers and contributors <maintainers@vyos.io>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+
+
+from vyos.ifconfig.interface import Interface
+
+
+class VXLANIf(Interface):
+    """
+    The VXLAN protocol is a tunnelling protocol designed to solve the
+    problem of limited VLAN IDs (4096) in IEEE 802.1q. With VXLAN the
+    size of the identifier is expanded to 24 bits (16777216).
+
+    VXLAN is described by IETF RFC 7348, and has been implemented by a
+    number of vendors.  The protocol runs over UDP using a single
+    destination port.  This document describes the Linux kernel tunnel
+    device, there is also a separate implementation of VXLAN for
+    Openvswitch.
+
+    Unlike most tunnels, a VXLAN is a 1 to N network, not just point to
+    point. A VXLAN device can learn the IP address of the other endpoint
+    either dynamically in a manner similar to a learning bridge, or make
+    use of statically-configured forwarding entries.
+
+    For more information please refer to:
+    https://www.kernel.org/doc/Documentation/networking/vxlan.txt
+    """
+
+    options = ['group', 'remote', 'dev', 'port', 'vni']
+
+    default = {
+        'type': 'vxlan',
+        'vni': 0,
+        'dev': '',
+        'group': '',
+        'remote': '',
+        'port': 8472,   # The Linux implementation of VXLAN pre-dates
+                        # the IANA's selection of a standard destination port
+    }
+
+    def __init__(self, ifname, **kargs):
+        super().__init__(ifname, **kargs)
+
+    def _create(self):
+        # we assume that by default a multicast interface is created
+        group = 'group {}'.format(self.config['group'])
+
+        # if remote host is specified we ignore the multicast address
+        if self.config['remote']:
+            group = 'remote {}'.format(self.config['remote'])
+
+        # an underlay device is not always specified
+        dev = ''
+        if self.config['dev']:
+            dev = 'dev {}'.format(self.config['dev'])
+
+        cmd = 'ip link add {ifname} type vxlan id {vni} {group} {dev} dstport {port}'.format(
+            **config)
+        self._cmd(cmd)
+
+    @staticmethod
+    def get_config():
+        """
+        VXLAN interfaces require a configuration when they are added using
+        iproute2. This static method will provide the configuration dictionary
+        used by this class.
+
+        Example:
+        >> dict = VXLANIf().get_config()
+        """
+        config = {
+            'vni': 0,
+            'dev': '',
+            'group': '',
+            'port': 8472,  # The Linux implementation of VXLAN pre-dates
+            # the IANA's selection of a standard destination port
+            'remote': ''
+        }
+        return config
diff --git a/python/vyos/ifconfig/wireguard.py b/python/vyos/ifconfig/wireguard.py
new file mode 100644
index 000000000..2926e72e1
--- /dev/null
+++ b/python/vyos/ifconfig/wireguard.py
@@ -0,0 +1,169 @@
+# Copyright 2019 VyOS maintainers and contributors <maintainers@vyos.io>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library.  If not, see <http://www.gnu.org/licenses/>.
+
+
+import os
+
+from vyos.ifconfig.interface import Interface
+
+class WireGuardIf(Interface):
+    options = ['port', 'private-key', 'pubkey', 'psk',
+               'allowed-ips', 'fwmark', 'endpoint', 'keepalive']
+
+    default = {
+        'type': 'wireguard',
+        'port': 0,
+        'private-key': None,
+        'pubkey': None,
+        'psk': '/dev/null',
+        'allowed-ips': [],
+        'fwmark': 0x00,
+        'endpoint': None,
+        'keepalive': 0
+    }
+
+    """
+    Wireguard interface class, contains a comnfig dictionary since
+    wireguard VPN is being comnfigured via the wg command rather than
+    writing the config into a file. Otherwise if a pre-shared key is used
+    (symetric enryption key), it would we exposed within multiple files.
+    Currently it's only within the config.boot if the config was saved.
+
+    Example:
+    >>> from vyos.ifconfig import WireGuardIf as wg_if
+    >>> wg_intfc = wg_if("wg01")
+    >>> print (wg_intfc.wg_config)
+    {'private-key': None, 'keepalive': 0, 'endpoint': None, 'port': 0,
+    'allowed-ips': [], 'pubkey': None, 'fwmark': 0, 'psk': '/dev/null'}
+    >>> wg_intfc.wg_config['keepalive'] = 100
+    >>> print (wg_intfc.wg_config)
+    {'private-key': None, 'keepalive': 100, 'endpoint': None, 'port': 0,
+    'allowed-ips': [], 'pubkey': None, 'fwmark': 0, 'psk': '/dev/null'}
+    """
+
+    def __init__(self, ifname, **kargs):
+        super().__init__(ifname, **kargs)
+
+    def update(self):
+        if not self.config['private-key']:
+            raise ValueError("private key required")
+        else:
+            # fmask permission check?
+            pass
+
+        cmd = "wg set {} ".format(self.config['ifname'])
+        cmd += "listen-port {} ".format(self.config['port'])
+        cmd += "fwmark {} ".format(str(self.config['fwmark']))
+        cmd += "private-key {} ".format(self.config['private-key'])
+        cmd += "peer {} ".format(self.config['pubkey'])
+        cmd += " preshared-key {} ".format(self.config['psk'])
+        cmd += " allowed-ips "
+        for aip in self.config['allowed-ips']:
+            if aip != self.config['allowed-ips'][-1]:
+                cmd += aip + ","
+            else:
+                cmd += aip
+        if self.config['endpoint']:
+            cmd += " endpoint {}".format(self.config['endpoint'])
+        cmd += " persistent-keepalive {}".format(self.config['keepalive'])
+
+        self._cmd(cmd)
+
+        # remove psk since it isn't required anymore and is saved in the cli
+        # config only !!
+        if self.config['psk'] != '/dev/null':
+            if os.path.exists(self.config['psk']):
+                os.remove(self.config['psk'])
+
+    def remove_peer(self, peerkey):
+        """
+        Remove a peer of an interface, peers are identified by their public key.
+        Giving it a readable name is a vyos feature, to remove a peer the pubkey
+        and the interface is needed, to remove the entry.
+        """
+        cmd = "wg set {0} peer {1} remove".format(
+            self.config['ifname'], str(peerkey))
+        return self._cmd(cmd)
+
+    def op_show_interface(self):
+        wgdump = vyos.interfaces.wireguard_dump().get(
+            self.config['ifname'], None)
+
+        c = Config()
+        c.set_level(["interfaces", "wireguard", self.config['ifname']])
+        description = c.return_effective_value(["description"])
+        ips = c.return_effective_values(["address"])
+
+        print ("interface: {}".format(self.config['ifname']))
+        if (description):
+            print ("  description: {}".format(description))
+
+        if (ips):
+            print ("  address: {}".format(", ".join(ips)))
+        print ("  public key: {}".format(wgdump['public_key']))
+        print ("  private key: (hidden)")
+        print ("  listening port: {}".format(wgdump['listen_port']))
+        print ()
+
+        for peer in c.list_effective_nodes(["peer"]):
+            if wgdump['peers']:
+                pubkey = c.return_effective_value(["peer", peer, "pubkey"])
+                if pubkey in wgdump['peers']:
+                    wgpeer = wgdump['peers'][pubkey]
+
+                    print ("  peer: {}".format(peer))
+                    print ("    public key: {}".format(pubkey))
+
+                    """ figure out if the tunnel is recently active or not """
+                    status = "inactive"
+                    if (wgpeer['latest_handshake'] is None):
+                        """ no handshake ever """
+                        status = "inactive"
+                    else:
+                        if int(wgpeer['latest_handshake']) > 0:
+                            delta = timedelta(seconds=int(
+                                time.time() - wgpeer['latest_handshake']))
+                            print ("    latest handshake: {}".format(delta))
+                            if (time.time() - int(wgpeer['latest_handshake']) < (60*5)):
+                                """ Five minutes and the tunnel is still active """
+                                status = "active"
+                            else:
+                                """ it's been longer than 5 minutes """
+                                status = "inactive"
+                        elif int(wgpeer['latest_handshake']) == 0:
+                            """ no handshake ever """
+                            status = "inactive"
+                        print ("    status: {}".format(status))
+
+                    if wgpeer['endpoint'] is not None:
+                        print ("    endpoint: {}".format(wgpeer['endpoint']))
+
+                    if wgpeer['allowed_ips'] is not None:
+                        print ("    allowed ips: {}".format(
+                            ",".join(wgpeer['allowed_ips']).replace(",", ", ")))
+
+                    if wgpeer['transfer_rx'] > 0 or wgpeer['transfer_tx'] > 0:
+                        rx_size = size(
+                            wgpeer['transfer_rx'], system=alternative)
+                        tx_size = size(
+                            wgpeer['transfer_tx'], system=alternative)
+                        print ("    transfer: {} received, {} sent".format(
+                            rx_size, tx_size))
+
+                    if wgpeer['persistent_keepalive'] is not None:
+                        print ("    persistent keepalive: every {} seconds".format(
+                            wgpeer['persistent_keepalive']))
+                print()
+        super().op_show_interface_stats()
diff --git a/src/conf_mode/interfaces-ethernet.py b/src/conf_mode/interfaces-ethernet.py
index 43cc22589..ede62e5e3 100755
--- a/src/conf_mode/interfaces-ethernet.py
+++ b/src/conf_mode/interfaces-ethernet.py
@@ -250,7 +250,7 @@ def verify(eth):
             bond_member = conf.return_values('interfaces bonding ' + bond + ' member interface')
             if eth['intf'] in bond_member:
                 if eth['address']:
-                    raise ConfigError('Can not assign address to interface {} which is a member of {}').format(eth['intf'], bond)
+                    raise ConfigError('Can not assign address to interface {} which is a member of {}'.format(eth['intf'], bond))
 
     # DHCPv6 parameters-only and temporary address are mutually exclusive
     for vif_s in eth['vif_s']: