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-:lastproofread: 2021-06-29
-
-.. _firewall:
-
-########
-Firewall
-########
-
-********
-Overview
-********
-
-VyOS makes use of Linux `netfilter <https://netfilter.org/>`_ for packet
-filtering.
-
-The firewall supports the creation of groups for addresses, domains,
-interfaces, mac-addresses, networks and port groups. This groups can be used
-later in firewall ruleset as desired.
-
-.. note:: **Important note on usage of terms:**
- The firewall makes use of the terms `forward`, `input`, and `output`
- for firewall policy. More information of Netfilter hooks and Linux
- networking packet flows can be found in `Netfilter-Hooks
- <https://wiki.nftables.org/wiki-nftables/index.php/Netfilter_hooks>`_
-
-
-Main structure is shown next:
-
-.. code-block:: none
-
- - set firewall
- * global-options
- + all-ping
- + broadcast-ping
- + ...
- * group
- - address-group
- - ipv6-address-group
- - network-group
- - ipv6-network-group
- - interface-group
- - mac-group
- - port-group
- - domain-group
- * ipv4
- - forward
- + filter
- - input
- + filter
- - output
- + filter
- - name
- + custom_name
- * ipv6
- - forward
- + filter
- - input
- + filter
- - output
- + filter
- - ipv6-name
- + custom_name
-
-Where, main key words and configuration paths that needs to be understood:
-
- * For firewall filtering, configuration should be done in ``set firewall
- [ipv4 | ipv6] ...``
-
- * For transit traffic, which is received by the router and forwarded,
- base chain is **forward filter**: ``set firewall [ipv4 | ipv6]
- forward filter ...``
-
- * For traffic originated by the router, base chain is **output filter**:
- ``set firewall [ipv4 | ipv6] output filter ...``
-
- * For traffic towards the router itself, base chain is **input filter**:
- ``set firewall [ipv4 | ipv6] input filter ...``
-
-.. note:: **Important note about default-actions:**
- If default action for any chain is not defined, then the default
- action is set to **accept** for that chain. Only for custom chains,
- the default action is set to **drop**.
-
-Custom firewall chains can be created, with commands
-``set firewall [ipv4 | ipv6] [name | ipv6-name] <name> ...``. In order to use
-such custom chain, a rule with **action jump**, and the appropiate **target**
-should be defined in a base chain.
-
-**************
-Global Options
-**************
-
-Some firewall settings are global and have an affect on the whole system.
-
-.. cfgcmd:: set firewall global-options all-ping [enable | disable]
-
- By default, when VyOS receives an ICMP echo request packet destined for
- itself, it will answer with an ICMP echo reply, unless you avoid it
- through its firewall.
-
- With the firewall you can set rules to accept, drop or reject ICMP in,
- out or local traffic. You can also use the general **firewall all-ping**
- command. This command affects only to LOCAL (packets destined for your
- VyOS system), not to IN or OUT traffic.
-
- .. note:: **firewall global-options all-ping** affects only to LOCAL
- and it always behaves in the most restrictive way
-
- .. code-block:: none
-
- set firewall global-options all-ping enable
-
- When the command above is set, VyOS will answer every ICMP echo request
- addressed to itself, but that will only happen if no other rule is
- applied dropping or rejecting local echo requests. In case of conflict,
- VyOS will not answer ICMP echo requests.
-
- .. code-block:: none
-
- set firewall global-options all-ping disable
-
- When the command above is set, VyOS will answer no ICMP echo request
- addressed to itself at all, no matter where it comes from or whether
- more specific rules are being applied to accept them.
-
-.. cfgcmd:: set firewall global-options broadcast-ping [enable | disable]
-
- This setting enable or disable the response of icmp broadcast
- messages. The following system parameter will be altered:
-
- * ``net.ipv4.icmp_echo_ignore_broadcasts``
-
-.. cfgcmd:: set firewall global-options ip-src-route [enable | disable]
-.. cfgcmd:: set firewall global-options ipv6-src-route [enable | disable]
-
- This setting handle if VyOS accept packets with a source route
- option. The following system parameter will be altered:
-
- * ``net.ipv4.conf.all.accept_source_route``
- * ``net.ipv6.conf.all.accept_source_route``
-
-.. cfgcmd:: set firewall global-options receive-redirects [enable | disable]
-.. cfgcmd:: set firewall global-options ipv6-receive-redirects
- [enable | disable]
-
- enable or disable of ICMPv4 or ICMPv6 redirect messages accepted
- by VyOS. The following system parameter will be altered:
-
- * ``net.ipv4.conf.all.accept_redirects``
- * ``net.ipv6.conf.all.accept_redirects``
-
-.. cfgcmd:: set firewall global-options send-redirects [enable | disable]
-
- enable or disable ICMPv4 redirect messages send by VyOS
- The following system parameter will be altered:
-
- * ``net.ipv4.conf.all.send_redirects``
-
-.. cfgcmd:: set firewall global-options log-martians [enable | disable]
-
- enable or disable the logging of martian IPv4 packets.
- The following system parameter will be altered:
-
- * ``net.ipv4.conf.all.log_martians``
-
-.. cfgcmd:: set firewall global-options source-validation
- [strict | loose | disable]
-
- Set the IPv4 source validation mode.
- The following system parameter will be altered:
-
- * ``net.ipv4.conf.all.rp_filter``
-
-.. cfgcmd:: set firewall global-options syn-cookies [enable | disable]
-
- Enable or Disable if VyOS use IPv4 TCP SYN Cookies.
- The following system parameter will be altered:
-
- * ``net.ipv4.tcp_syncookies``
-
-.. cfgcmd:: set firewall global-options twa-hazards-protection
- [enable | disable]
-
- Enable or Disable VyOS to be :rfc:`1337` conform.
- The following system parameter will be altered:
-
- * ``net.ipv4.tcp_rfc1337``
-
-******
-Groups
-******
-
-Firewall groups represent collections of IP addresses, networks, ports,
-mac addresses, domains or interfaces. Once created, a group can be referenced
-by firewall, nat and policy route rules as either a source or destination
-matcher, and as inbpund/outbound in the case of interface group.
-
-Address Groups
-==============
-
-In an **address group** a single IP address or IP address ranges are
-defined.
-
-.. cfgcmd:: set firewall group address-group <name> address [address |
- address range]
-.. cfgcmd:: set firewall group ipv6-address-group <name> address <address>
-
- Define a IPv4 or a IPv6 address group
-
- .. code-block:: none
-
- set firewall group address-group ADR-INSIDE-v4 address 192.168.0.1
- set firewall group address-group ADR-INSIDE-v4 address 10.0.0.1-10.0.0.8
- set firewall group ipv6-address-group ADR-INSIDE-v6 address 2001:db8::1
-
-.. cfgcmd:: set firewall group address-group <name> description <text>
-.. cfgcmd:: set firewall group ipv6-address-group <name> description <text>
-
- Provide a IPv4 or IPv6 address group description
-
-Network Groups
-==============
-
-While **network groups** accept IP networks in CIDR notation, specific
-IP addresses can be added as a 32-bit prefix. If you foresee the need
-to add a mix of addresses and networks, the network group is
-recommended.
-
-.. cfgcmd:: set firewall group network-group <name> network <CIDR>
-.. cfgcmd:: set firewall group ipv6-network-group <name> network <CIDR>
-
- Define a IPv4 or IPv6 Network group.
-
- .. code-block:: none
-
- set firewall group network-group NET-INSIDE-v4 network 192.168.0.0/24
- set firewall group network-group NET-INSIDE-v4 network 192.168.1.0/24
- set firewall group ipv6-network-group NET-INSIDE-v6 network 2001:db8::/64
-
-.. cfgcmd:: set firewall group network-group <name> description <text>
-.. cfgcmd:: set firewall group ipv6-network-group <name> description <text>
-
- Provide an IPv4 or IPv6 network group description.
-
-Interface Groups
-================
-
-An **interface group** represents a collection of interfaces.
-
-.. cfgcmd:: set firewall group interface-group <name> interface <text>
-
- Define an interface group. Wildcard are accepted too.
-
-.. code-block:: none
-
- set firewall group interface-group LAN interface bond1001
- set firewall group interface-group LAN interface eth3*
-
-.. cfgcmd:: set firewall group interface-group <name> description <text>
-
- Provide an interface group description
-
-Port Groups
-===========
-
-A **port group** represents only port numbers, not the protocol. Port
-groups can be referenced for either TCP or UDP. It is recommended that
-TCP and UDP groups are created separately to avoid accidentally
-filtering unnecessary ports. Ranges of ports can be specified by using
-`-`.
-
-.. cfgcmd:: set firewall group port-group <name> port
- [portname | portnumber | startport-endport]
-
- Define a port group. A port name can be any name defined in
- /etc/services. e.g.: http
-
- .. code-block:: none
-
- set firewall group port-group PORT-TCP-SERVER1 port http
- set firewall group port-group PORT-TCP-SERVER1 port 443
- set firewall group port-group PORT-TCP-SERVER1 port 5000-5010
-
-.. cfgcmd:: set firewall group port-group <name> description <text>
-
- Provide a port group description.
-
-MAC Groups
-==========
-
-A **mac group** represents a collection of mac addresses.
-
-.. cfgcmd:: set firewall group mac-group <name> mac-address <mac-address>
-
- Define a mac group.
-
-.. code-block:: none
-
- set firewall group mac-group MAC-G01 mac-address 88:a4:c2:15:b6:4f
- set firewall group mac-group MAC-G01 mac-address 4c:d5:77:c0:19:81
-
-.. cfgcmd:: set firewall group mac-group <name> description <text>
-
- Provide a mac group description.
-
-Domain Groups
-=============
-
-A **domain group** represents a collection of domains.
-
-.. cfgcmd:: set firewall group domain-group <name> address <domain>
-
- Define a domain group.
-
-.. code-block:: none
-
- set firewall group domain-group DOM address example.com
-
-.. cfgcmd:: set firewall group domain-group <name> description <text>
-
- Provide a domain group description.
-
-**************
-Firewall Rules
-**************
-
-For firewall filtering, firewall rules needs to be created. Each rule is
-numbered, has an action to apply if the rule is matched, and the ability
-to specify multiple criteria matchers. Data packets go through the rules
-from 1 - 999999, so order is crucial. At the first match the action of the
-rule will be executed.
-
-Actions
-=======
-
-If a rule is defined, then an action must be defined for it. This tells the
-firewall what to do if all criteria matchers defined for such rule do match.
-
-The action can be :
-
- * ``accept``: accept the packet.
-
- * ``drop``: drop the packet.
-
- * ``reject``: reject the packet.
-
- * ``jump``: jump to another custom chain.
-
- * ``return``: Return from the current chain and continue at the next rule
- of the last chain.
-
- * ``queue``: Enqueue packet to userspace.
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999> action
- [accept | drop | jump | queue | reject | return]
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999> action
- [accept | drop | jump | queue | reject | return]
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999> action
- [accept | drop | jump | queue | reject | return]
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999> action
- [accept | drop | jump | queue | reject | return]
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999> action
- [accept | drop | jump | queue | reject | return]
-
- This required setting defines the action of the current rule. If action is
- set to jump, then jump-target is also needed.
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- jump-target <text>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- jump-target <text>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- jump-target <text>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- jump-target <text>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- jump-target <text>
-
- To be used only when action is set to jump. Use this command to specify
- jump target.
-
-Also, **default-action** is an action that takes place whenever a packet does
-not match any rule in it's chain. For base chains, possible options for
-**default-action** are **accept** or **drop**.
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter default-action
- [accept | drop]
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter default-action
- [accept | drop]
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter default-action
- [accept | drop]
-.. cfgcmd:: set firewall ipv4 name <name> default-action
- [accept | drop | jump | queue | reject | return]
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> default-action
- [accept | drop | jump | queue | reject | return]
-
- This set the default action of the rule-set if no rule matched a packet
- criteria. If defacult-action is set to ``jump``, then
- ``default-jump-target`` is also needed. Note that for base chains, default
- action can only be set to ``accept`` or ``drop``, while on custom chain,
- more actions are available.
-
-.. cfgcmd:: set firewall name <name> default-jump-target <text>
-.. cfgcmd:: set firewall ipv6-name <name> default-jump-target <text>
-
- To be used only when ``defult-action`` is set to ``jump``. Use this
- command to specify jump target for default rule.
-
-.. note:: **Important note about default-actions:**
- If default action for any chain is not defined, then the default
- action is set to **drop** for that chain.
-
-
-Firewall Logs
-=============
-
-Logging can be enable for every single firewall rule. If enabled, other
-log options can be defined.
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999> log
- [disable | enable]
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999> log
- [disable | enable]
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999> log
- [disable | enable]
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999> log
- [disable | enable]
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999> log
- [disable | enable]
-
- Enable or disable logging for the matched packet.
-
-.. cfgcmd:: set firewall ipv4 name <name> enable-default-log
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> enable-default-log
-
- Use this command to enable the logging of the default action on
- custom chains.
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- log-options level [emerg | alert | crit | err | warn | notice
- | info | debug]
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- log-options level [emerg | alert | crit | err | warn | notice
- | info | debug]
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- log-options level [emerg | alert | crit | err | warn | notice
- | info | debug]
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- log-options level [emerg | alert | crit | err | warn | notice
- | info | debug]
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- log-options level [emerg | alert | crit | err | warn | notice
- | info | debug]
-
- Define log-level. Only applicable if rule log is enable.
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- log-options group <0-65535>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- log-options group <0-65535>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- log-options group <0-65535>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- log-options group <0-65535>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- log-options group <0-65535>
-
- Define log group to send message to. Only applicable if rule log is enable.
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- log-options snapshot-length <0-9000>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- log-options snapshot-length <0-9000>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- log-options snapshot-length <0-9000>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- log-options snapshot-length <0-9000>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- log-options snapshot-length <0-9000>
-
- Define length of packet payload to include in netlink message. Only
- applicable if rule log is enable and log group is defined.
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- log-options queue-threshold <0-65535>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- log-options queue-threshold <0-65535>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- log-options queue-threshold <0-65535>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- log-options queue-threshold <0-65535>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- log-options queue-threshold <0-65535>
-
- Define number of packets to queue inside the kernel before sending them to
- userspace. Only applicable if rule log is enable and log group is defined.
-
-
-Firewall Description
-====================
-
-For reference, a description can be defined for every single rule, and for
-every defined custom chain.
-
-.. cfgcmd:: set firewall ipv4 name <name> description <text>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> description <text>
-
- Provide a rule-set description to a custom firewall chain.
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- description <text>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- description <text>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- description <text>
-
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999> description <text>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999> description <text>
-
- Provide a description for each rule.
-
-
-Rule Status
-===========
-
-When defining a rule, it is enable by default. In some cases, it is useful to
-just disable the rule, rather than removing it.
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999> disable
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999> disable
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999> disable
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999> disable
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999> disable
-
- Command for disabling a rule but keep it in the configuration.
-
-
-Matching criteria
-=================
-
-There are a lot of matching criteria against which the package can be tested.
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- connection-status nat [destination | source]
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- connection-status nat [destination | source]
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- connection-status nat [destination | source]
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- connection-status nat [destination | source]
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- connection-status nat [destination | source]
-
- Match criteria based on nat connection status.
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- connection-mark <1-2147483647>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- connection-mark <1-2147483647>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- connection-mark <1-2147483647>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- connection-mark <1-2147483647>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- connection-mark <1-2147483647>
-
- Match criteria based on connection mark.
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- source address [address | addressrange | CIDR]
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- source address [address | addressrange | CIDR]
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- source address [address | addressrange | CIDR]
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- source address [address | addressrange | CIDR]
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- source address [address | addressrange | CIDR]
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- destination address [address | addressrange | CIDR]
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- destination address [address | addressrange | CIDR]
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- destination address [address | addressrange | CIDR]
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- destination address [address | addressrange | CIDR]
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- destination address [address | addressrange | CIDR]
-
- Match criteria based on source and/or destination address. This is similar
- to the network groups part, but here you are able to negate the matching
- addresses.
-
- .. code-block:: none
-
- set firewall ipv4 name FOO rule 50 source address 192.0.2.10-192.0.2.11
- # with a '!' the rule match everything except the specified subnet
- set firewall ipv4 input filter FOO rule 51 source address !203.0.113.0/24
- set firewall ipv6 ipv6-name FOO rule 100 source address 2001:db8::202
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- source address-mask [address]
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- source address-mask [address]
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- source address-mask [address]
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- source address-mask [address]
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- source address-mask [address]
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- destination address-mask [address]
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- destination address-mask [address]
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- destination address-mask [address]
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- destination address-mask [address]
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- destination address-mask [address]
-
- An arbitrary netmask can be applied to mask addresses to only match against
- a specific portion. This is particularly useful with IPv6 as rules will
- remain valid if the IPv6 prefix changes and the host
- portion of systems IPv6 address is static (for example, with SLAAC or
- `tokenised IPv6 addresses
- <https://datatracker.ietf.org/doc/id/draft-chown-6man-tokenised-ipv6-identifiers-02.txt>`_)
-
- This functions for both individual addresses and address groups.
-
- .. code-block:: none
-
- # Match any IPv6 address with the suffix ::0000:0000:0000:beef
- set firewall ipv6 forward filter rule 100 destination address ::beef
- set firewall ipv6 forward filter rule 100 destination address-mask ::ffff:ffff:ffff:ffff
- # Match any IPv4 address with `11` as the 2nd octet and `13` as the forth octet
- set firewall ipv4 name FOO rule 100 destination address 0.11.0.13
- set firewall ipv4 name FOO rule 100 destination address-mask 0.255.0.255
- # Address groups
- set firewall group ipv6-address-group WEBSERVERS address ::1000
- set firewall group ipv6-address-group WEBSERVERS address ::2000
- set firewall ipv6 forward filter rule 200 source group address-group WEBSERVERS
- set firewall ipv6 forward filter rule 200 source address-mask ::ffff:ffff:ffff:ffff
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- source fqdn <fqdn>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- source fqdn <fqdn>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- source fqdn <fqdn>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- source fqdn <fqdn>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- source fqdn <fqdn>
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- destination fqdn <fqdn>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- destination fqdn <fqdn>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- destination fqdn <fqdn>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- destination fqdn <fqdn>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- destination fqdn <fqdn>
-
- Specify a Fully Qualified Domain Name as source/destination matcher. Ensure
- router is able to resolve such dns query.
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- source geoip country-code <country>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- source geoip country-code <country>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- source geoip country-code <country>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- source geoip country-code <country>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- source geoip country-code <country>
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- destination geoip country-code <country>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- destination geoip country-code <country>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- destination geoip country-code <country>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- destination geoip country-code <country>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- destination geoip country-code <country>
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- source geoip inverse-match
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- source geoip inverse-match
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- source geoip inverse-match
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- source geoip inverse-match
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- source geoip inverse-match
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- destination geoip inverse-match
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- destination geoip inverse-match
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- destination geoip inverse-match
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- destination geoip inverse-match
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- destination geoip inverse-match
-
- Match IP addresses based on its geolocation. More info: `geoip matching
- <https://wiki.nftables.org/wiki-nftables/index.php/GeoIP_matching>`_.
- Use inverse-match to match anything except the given country-codes.
-
-Data is provided by DB-IP.com under CC-BY-4.0 license. Attribution required,
-permits redistribution so we can include a database in images(~3MB
-compressed). Includes cron script (manually callable by op-mode update
-geoip) to keep database and rules updated.
-
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- source mac-address <mac-address>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- source mac-address <mac-address>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- source mac-address <mac-address>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- source mac-address <mac-address>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- source mac-address <mac-address>
-
- Only in the source criteria, you can specify a mac-address.
-
- .. code-block:: none
-
- set firewall ipv4 input filter rule 100 source mac-address 00:53:00:11:22:33
- set firewall ipv4 input filter rule 101 source mac-address !00:53:00:aa:12:34
-
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- source port [1-65535 | portname | start-end]
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- source port [1-65535 | portname | start-end]
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- source port [1-65535 | portname | start-end]
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- source port [1-65535 | portname | start-end]
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- source port [1-65535 | portname | start-end]
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- destination port [1-65535 | portname | start-end]
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- destination port [1-65535 | portname | start-end]
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- destination port [1-65535 | portname | start-end]
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- destination port [1-65535 | portname | start-end]
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- destination port [1-65535 | portname | start-end]
-
- A port can be set with a port number or a name which is here
- defined: ``/etc/services``.
-
- .. code-block:: none
-
- set firewall ipv4 forward filter rule 10 source port '22'
- set firewall ipv4 forward filter rule 11 source port '!http'
- set firewall ipv4 forward filter rule 12 source port 'https'
-
- Multiple source ports can be specified as a comma-separated list.
- The whole list can also be "negated" using ``!``. For example:
-
- .. code-block:: none
-
- set firewall ipv6 forward filter rule 10 source port '!22,https,3333-3338'
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- source group address-group <name | !name>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- source group address-group <name | !name>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- source group address-group <name | !name>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- source group address-group <name | !name>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- source group address-group <name | !name>
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- destination group address-group <name | !name>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- destination group address-group <name | !name>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- destination group address-group <name | !name>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- destination group address-group <name | !name>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- destination group address-group <name | !name>
-
- Use a specific address-group. Prepend character ``!`` for inverted matching
- criteria.
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- source group network-group <name | !name>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- source group network-group <name | !name>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- source group network-group <name | !name>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- source group network-group <name | !name>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- source group network-group <name | !name>
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- destination group network-group <name | !name>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- destination group network-group <name | !name>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- destination group network-group <name | !name>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- destination group network-group <name | !name>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- destination group network-group <name | !name>
-
- Use a specific network-group. Prepend character ``!`` for inverted matching
- criteria.
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- source group port-group <name | !name>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- source group port-group <name | !name>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- source group port-group <name | !name>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- source group port-group <name | !name>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- source group port-group <name | !name>
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- destination group port-group <name | !name>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- destination group port-group <name | !name>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- destination group port-group <name | !name>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- destination group port-group <name | !name>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- destination group port-group <name | !name>
-
- Use a specific port-group. Prepend character ``!`` for inverted matching
- criteria.
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- source group domain-group <name | !name>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- source group domain-group <name | !name>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- source group domain-group <name | !name>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- source group domain-group <name | !name>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- source group domain-group <name | !name>
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- destination group domain-group <name | !name>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- destination group domain-group <name | !name>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- destination group domain-group <name | !name>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- destination group domain-group <name | !name>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- destination group domain-group <name | !name>
-
- Use a specific domain-group. Prepend character ``!`` for inverted matching
- criteria.
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- source group mac-group <name | !name>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- source group mac-group <name | !name>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- source group mac-group <name | !name>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- source group mac-group <name | !name>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- source group mac-group <name | !name>
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- destination group mac-group <name | !name>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- destination group mac-group <name | !name>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- destination group mac-group <name | !name>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- destination group mac-group <name | !name>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- destination group mac-group <name | !name>
-
- Use a specific mac-group. Prepend character ``!`` for inverted matching
- criteria.
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- dscp [0-63 | start-end]
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- dscp [0-63 | start-end]
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- dscp [0-63 | start-end]
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- dscp [0-63 | start-end]
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- dscp [0-63 | start-end]
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- dscp-exclude [0-63 | start-end]
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- dscp-exclude [0-63 | start-end]
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- dscp-exclude [0-63 | start-end]
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- dscp-exclude [0-63 | start-end]
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- dscp-exclude [0-63 | start-end]
-
- Match based on dscp value.
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- fragment [match-frag | match-non-frag]
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- fragment [match-frag | match-non-frag]
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- fragment [match-frag | match-non-frag]
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- fragment [match-frag | match-non-frag]
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- fragment [match-frag | match-non-frag]
-
- Match based on fragment criteria.
-
-.. cfgcmd:: set firewall ipv4 forward filter rule <1-999999>
- icmp [code | type] <0-255>
-.. cfgcmd:: set firewall ipv4 input filter rule <1-999999>
- icmp [code | type] <0-255>
-.. cfgcmd:: set firewall ipv4 output filter rule <1-999999>
- icmp [code | type] <0-255>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- icmp [code | type] <0-255>
-.. cfgcmd:: set firewall ipv6 forward filter rule <1-999999>
- icmpv6 [code | type] <0-255>
-.. cfgcmd:: set firewall ipv6 input filter rule <1-999999>
- icmpv6 [code | type] <0-255>
-.. cfgcmd:: set firewall ipv6 output filter rule <1-999999>
- icmpv6 [code | type] <0-255>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- icmpv6 [code | type] <0-255>
-
- Match based on icmp|icmpv6 code and type.
-
-.. cfgcmd:: set firewall ipv4 forward filter rule <1-999999>
- icmp type-name <text>
-.. cfgcmd:: set firewall ipv4 input filter rule <1-999999>
- icmp type-name <text>
-.. cfgcmd:: set firewall ipv4 output filter rule <1-999999>
- icmp type-name <text>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- icmp type-name <text>
-.. cfgcmd:: set firewall ipv6 forward filter rule <1-999999>
- icmpv6 type-name <text>
-.. cfgcmd:: set firewall ipv6 input filter rule <1-999999>
- icmpv6 type-name <text>
-.. cfgcmd:: set firewall ipv6 output filter rule <1-999999>
- icmpv6 type-name <text>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- icmpv6 type-name <text>
-
- Match based on icmp|icmpv6 type-name criteria. Use tab for information
- about what **type-name** criteria are supported.
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- inbound-interface <iface>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- inbound-interface <iface>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- inbound-interface <iface>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- inbound-interface <iface>
-
- Match based on inbound interface. Wilcard ``*`` can be used.
- For example: ``eth2*``
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- outbound-interface <iface>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- outbound-interface <iface>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- outbound-interface <iface>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- outbound-interface <iface>
-
- Match based on outbound interface. Wilcard ``*`` can be used.
- For example: ``eth2*``
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- ipsec [match-ipsec | match-none]
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- ipsec [match-ipsec | match-none]
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- ipsec [match-ipsec | match-none]
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- ipsec [match-ipsec | match-none]
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- ipsec [match-ipsec | match-none]
-
- Match based on ipsec criteria.
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- limit burst <0-4294967295>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- limit burst <0-4294967295>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- limit burst <0-4294967295>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- limit burst <0-4294967295>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- limit burst <0-4294967295>
-
- Match based on the maximum number of packets to allow in excess of rate.
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- limit rate <text>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- limit rate <text>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- limit rate <text>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- limit rate <text>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- limit rate <text>
-
- Match based on the maximum average rate, specified as **integer/unit**.
- For example **5/minutes**
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- packet-length <text>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- packet-length <text>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- packet-length <text>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- packet-length <text>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- packet-length <text>
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- packet-length-exclude <text>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- packet-length-exclude <text>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- packet-length-exclude <text>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- packet-length-exclude <text>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- packet-length-exclude <text>
-
- Match based on packet length criteria. Multiple values from 1 to 65535
- and ranges are supported.
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- packet-type [broadcast | host | multicast | other]
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- packet-type [broadcast | host | multicast | other]
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- packet-type [broadcast | host | multicast | other]
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- packet-type [broadcast | host | multicast | other]
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- packet-type [broadcast | host | multicast | other]
-
- Match based on packet type criteria.
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- protocol [<text> | <0-255> | all | tcp_udp]
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- protocol [<text> | <0-255> | all | tcp_udp]
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- protocol [<text> | <0-255> | all | tcp_udp]
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- protocol [<text> | <0-255> | all | tcp_udp]
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- protocol [<text> | <0-255> | all | tcp_udp]
-
- Match a protocol criteria. A protocol number or a name which is here
- defined: ``/etc/protocols``.
- Special names are ``all`` for all protocols and ``tcp_udp`` for tcp and udp
- based packets. The ``!`` negate the selected protocol.
-
- .. code-block:: none
-
- set firewall ipv4 forward fitler rule 10 protocol tcp_udp
- set firewall ipv4 forward fitler rule 11 protocol !tcp_udp
- set firewall ipv6 input filter rule 10 protocol tcp
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- recent count <1-255>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- recent count <1-255>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- recent count <1-255>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- recent count <1-255>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- recent count <1-255>
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- recent time [second | minute | hour]
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- recent time [second | minute | hour]
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- recent time [second | minute | hour]
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- recent time [second | minute | hour]
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- recent time [second | minute | hour]
-
- Match bases on recently seen sources.
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- tcp flags <text>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- tcp flags <text>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- tcp flags <text>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- tcp flags <text>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- tcp flags <text>
-
- Allowed values fpr TCP flags: ``SYN``, ``ACK``, ``FIN``, ``RST``, ``URG``,
- ``PSH``, ``ALL`` When specifying more than one flag, flags should be comma
- separated. The ``!`` negate the selected protocol.
-
- .. code-block:: none
-
- set firewall ipv4 input filter rule 10 tcp flags 'ACK'
- set firewall ipv4 input filter rule 12 tcp flags 'SYN'
- set firewall ipv4 input filter rule 13 tcp flags 'SYN,!ACK,!FIN,!RST'
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- state [established | invalid | new | related] [enable | disable]
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- state [established | invalid | new | related] [enable | disable]
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- state [established | invalid | new | related] [enable | disable]
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- state [established | invalid | new | related] [enable | disable]
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- state [established | invalid | new | related] [enable | disable]
-
- Match against the state of a packet.
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- time startdate <text>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- time startdate <text>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- time startdate <text>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- time startdate <text>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- time startdate <text>
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- time starttime <text>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- time starttime <text>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- time starttime <text>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- time starttime <text>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- time starttime <text>
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- time stopdate <text>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- time stopdate <text>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- time stopdate <text>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- time stopdate <text>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- time stopdate <text>
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- time stoptime <text>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- time stoptime <text>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- time stoptime <text>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- time stoptime <text>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- time stoptime <text>
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- time weekdays <text>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- time weekdays <text>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- time weekdays <text>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- time weekdays <text>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- time weekdays <text>
-
- Time to match the defined rule.
-
-.. cfgcmd:: set firewall ipv4 forward filter rule <1-999999>
- ttl <eq | gt | lt> <0-255>
-.. cfgcmd:: set firewall ipv4 input filter rule <1-999999>
- ttl <eq | gt | lt> <0-255>
-.. cfgcmd:: set firewall ipv4 output filter rule <1-999999>
- ttl <eq | gt | lt> <0-255>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- ttl <eq | gt | lt> <0-255>
-
- Match time to live parameter, where 'eq' stands for 'equal'; 'gt' stands for
- 'greater than', and 'lt' stands for 'less than'.
-
-.. cfgcmd:: set firewall ipv6 forward filter rule <1-999999>
- hop-limit <eq | gt | lt> <0-255>
-.. cfgcmd:: set firewall ipv6 input filter rule <1-999999>
- hop-limit <eq | gt | lt> <0-255>
-.. cfgcmd:: set firewall ipv6 output filter rule <1-999999>
- hop-limit <eq | gt | lt> <0-255>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- hop-limit <eq | gt | lt> <0-255>
-
- Match hop-limit parameter, where 'eq' stands for 'equal'; 'gt' stands for
- 'greater than', and 'lt' stands for 'less than'.
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- recent count <1-255>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- recent count <1-255>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- recent count <1-255>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- recent count <1-255>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- recent count <1-255>
-
-.. cfgcmd:: set firewall [ipv4 | ipv6] forward filter rule <1-999999>
- recent time <second | minute | hour>
-.. cfgcmd:: set firewall [ipv4 | ipv6] input filter rule <1-999999>
- recent time <second | minute | hour>
-.. cfgcmd:: set firewall [ipv4 | ipv6] output filter rule <1-999999>
- recent time <second | minute | hour>
-.. cfgcmd:: set firewall ipv4 name <name> rule <1-999999>
- recent time <second | minute | hour>
-.. cfgcmd:: set firewall ipv6 ipv6-name <name> rule <1-999999>
- recent time <second | minute | hour>
-
- Match when 'count' amount of connections are seen within 'time'. These
- matching criteria can be used to block brute-force attempts.
-
-***********************
-Operation-mode Firewall
-***********************
-
-Rule-set overview
-=================
-
-.. opcmd:: show firewall
-
- This will show you a basic firewall overview
-
- .. code-block:: none
-
- vyos@vyos:~$ show firewall
- Rulesets Information
-
- ---------------------------------
- IPv4 Firewall "forward filter"
-
- Rule Action Protocol Packets Bytes Conditions
- ------- -------- ---------- --------- ------- -----------------------------------------
- 5 jump all 0 0 iifname "eth1" jump NAME_VyOS_MANAGEMENT
- 10 jump all 0 0 oifname "eth1" jump NAME_WAN_IN
- 15 jump all 0 0 iifname "eth3" jump NAME_WAN_IN
- default accept all
-
- ---------------------------------
- IPv4 Firewall "name VyOS_MANAGEMENT"
-
- Rule Action Protocol Packets Bytes Conditions
- ------- -------- ---------- --------- ------- --------------------------------
- 5 accept all 0 0 ct state established accept
- 10 drop all 0 0 ct state invalid
- 20 accept all 0 0 ip saddr @A_GOOD_GUYS accept
- 30 accept all 0 0 ip saddr @N_ENTIRE_RANGE accept
- 40 accept all 0 0 ip saddr @A_VyOS_SERVERS accept
- 50 accept icmp 0 0 meta l4proto icmp accept
- default drop all 0 0
-
- ---------------------------------
- IPv6 Firewall "forward filter"
-
- Rule Action Protocol
- ------- -------- ----------
- 5 jump all
- 10 jump all
- 15 jump all
- default accept all
-
- ---------------------------------
- IPv6 Firewall "input filter"
-
- Rule Action Protocol
- ------- -------- ----------
- 5 jump all
- default accept all
-
- ---------------------------------
- IPv6 Firewall "ipv6_name IPV6-VyOS_MANAGEMENT"
-
- Rule Action Protocol
- ------- -------- ----------
- 5 accept all
- 10 drop all
- 20 accept all
- 30 accept all
- 40 accept all
- 50 accept ipv6-icmp
- default drop all
-
-.. opcmd:: show firewall summary
-
- This will show you a summary of rule-sets and groups
-
- .. code-block:: none
-
- vyos@vyos:~$ show firewall summary
- Ruleset Summary
-
- IPv6 Ruleset:
-
- Ruleset Hook Ruleset Priority Description
- -------------- -------------------- -------------------------
- forward filter
- input filter
- ipv6_name IPV6-VyOS_MANAGEMENT
- ipv6_name IPV6-WAN_IN PUBLIC_INTERNET
-
- IPv4 Ruleset:
-
- Ruleset Hook Ruleset Priority Description
- -------------- ------------------ -------------------------
- forward filter
- input filter
- name VyOS_MANAGEMENT
- name WAN_IN PUBLIC_INTERNET
-
- Firewall Groups
-
- Name Type References Members
- ----------------------- ------------------ ----------------------- ----------------
- PBX address_group WAN_IN-100 198.51.100.77
- SERVERS address_group WAN_IN-110 192.0.2.10
- WAN_IN-111 192.0.2.11
- WAN_IN-112 192.0.2.12
- WAN_IN-120
- WAN_IN-121
- WAN_IN-122
- SUPPORT address_group VyOS_MANAGEMENT-20 192.168.1.2
- WAN_IN-20
- PHONE_VPN_SERVERS address_group WAN_IN-160 10.6.32.2
- PINGABLE_ADRESSES address_group WAN_IN-170 192.168.5.2
- WAN_IN-171
- PBX ipv6_address_group IPV6-WAN_IN-100 2001:db8::1
- SERVERS ipv6_address_group IPV6-WAN_IN-110 2001:db8::2
- IPV6-WAN_IN-111 2001:db8::3
- IPV6-WAN_IN-112 2001:db8::4
- IPV6-WAN_IN-120
- IPV6-WAN_IN-121
- IPV6-WAN_IN-122
- SUPPORT ipv6_address_group IPV6-VyOS_MANAGEMENT-20 2001:db8::5
- IPV6-WAN_IN-20
-
-
-.. opcmd:: show firewall [ipv4 | ipv6] [forward | input | output] filter
-
-.. opcmd:: show firewall ipv4 name <name>
-
-.. opcmd:: show firewall ipv6 ipv6-name <name>
-
- This command will give an overview of a single rule-set.
-
- .. code-block:: none
-
- vyos@vyos:~$ show firewall ipv4 input filter
- Ruleset Information
-
- ---------------------------------
- IPv4 Firewall "input filter"
-
- Rule Action Protocol Packets Bytes Conditions
- ------- -------- ---------- --------- ------- -----------------------------------------
- 5 jump all 0 0 iifname "eth2" jump NAME_VyOS_MANAGEMENT
- default accept all
-
-.. opcmd:: show firewall [ipv4 | ipv6] [forward | input | output]
- filter rule <1-999999>
-
-.. opcmd:: show firewall ipv4 name <name> rule <1-999999>
-
-.. opcmd:: show firewall ipv6 ipv6-name <name> rule <1-999999>
-
- This command will give an overview of a rule in a single rule-set
-
-.. opcmd:: show firewall group <name>
-
- Overview of defined groups. You see the type, the members, and where the
- group is used.
-
- .. code-block:: none
-
- vyos@vyos:~$ show firewall group LAN
- Firewall Groups
-
- Name Type References Members
- ------------ ------------------ ----------------------- ----------------
- LAN ipv6_network_group IPV6-VyOS_MANAGEMENT-30 2001:db8::0/64
- IPV6-WAN_IN-30
- LAN network_group VyOS_MANAGEMENT-30 192.168.200.0/24
- WAN_IN-30
-
-
-.. opcmd:: show firewall statistics
-
- This will show you a statistic of all rule-sets since the last boot.
-
-Show Firewall log
-=================
-
-.. opcmd:: show log firewall [name | ipv6name] <name>
-
- Show the logs of a specific Rule-Set.
-
-.. note::
- At the moment it not possible to look at the whole firewall log with VyOS
- operational commands. All logs will save to ``/var/logs/messages``.
- For example: ``grep '10.10.0.10' /var/log/messages``
-
-
-Example Partial Config
-======================
-
-.. code-block:: none
-
- firewall {
- group {
- network-group BAD-NETWORKS {
- network 198.51.100.0/24
- network 203.0.113.0/24
- }
- network-group GOOD-NETWORKS {
- network 192.0.2.0/24
- }
- port-group BAD-PORTS {
- port 65535
- }
- }
- ipv4 {
- forward {
- filter {
- default-action accept
- rule 5 {
- action accept
- source {
- group {
- network-group GOOD-NETWORKS
- }
- }
- }
- rule 10 {
- action drop
- description "Bad Networks"
- protocol all
- source {
- group {
- network-group BAD-NETWORKS
- }
- }
- }
- }
- }
- }
- }
-
-Update geoip database
-=====================
-
-.. opcmd:: update geoip
-
- Command used to update GeoIP database and firewall sets.
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-22 07:25:03 +0000