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It allows IP protocol numbers 0-255, protocol names e.g. tcp, ip, ipv6 and the
negated form with a leading "!".
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CLI commands used for ruleset generation:
set nat source rule 100 outbound-interface 'eth0.202'
set nat source rule 100 protocol 'all'
set nat source rule 100 source address '192.0.2.0/26'
set nat source rule 100 translation address 'masquerade'
set nat source rule 110 outbound-interface 'eth0.202'
set nat source rule 110 protocol 'tcp'
set nat source rule 110 source address '192.0.2.0/26'
set nat source rule 110 source port '5556'
set nat source rule 110 translation address 'masquerade'
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The generated NAT rules in VyOS 1.2 are compared to the generated nftables
ruleset in VyOS 1.3 this was done by converting the 1.2 iptables ruleset to
nftables and then do the diff. To convert from iptables to nftables use the
following command:
$ iptables-save -t nat > /tmp/tmp.iptables
$ iptables-restore-translate -f /tmp/tmp.iptables
The following CLI options have been used for testing:
set nat destination rule 10 description 'foo-10'
set nat destination rule 10 destination address '1.1.1.1'
set nat destination rule 10 destination port '1111'
set nat destination rule 10 exclude
set nat destination rule 10 inbound-interface 'eth0.202'
set nat destination rule 10 log
set nat destination rule 10 protocol 'tcp_udp'
set nat destination rule 10 translation address '192.0.2.10'
set nat destination rule 15 description 'foo-10'
set nat destination rule 15 destination address '1.1.1.1'
set nat destination rule 15 exclude
set nat destination rule 15 inbound-interface 'eth0.202'
set nat destination rule 15 log
set nat destination rule 15 protocol 'tcp_udp'
set nat destination rule 15 translation address '192.0.2.10'
set nat destination rule 20 description 'foo-20'
set nat destination rule 20 destination address '2.2.2.2'
set nat destination rule 20 inbound-interface 'eth0.201'
set nat destination rule 20 log
set nat destination rule 20 protocol 'tcp'
set nat destination rule 20 translation address '192.0.2.10'
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Destination NAT configuration: destination ports can only be specified when
protocol is tcp, udp or tcp_udp.
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- "show nat source|destination statistics" is now implemented in Python
- "show nat source|destination rules" needs a new implementation, see T2459
- "show nat source|destination translations" has been copied over from the old
repo and is here until it is rewritten, this was not possible for "rules"
as there would have been too much dependencies. This one only requires
libxml-simple-perl
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Exclude validators are required to support the ! (not) operator on the CLI to
exclude addresses from NAT.
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When instantiating NAT it is required to isntall some nftable jump targets.
The targets need to be added after a specific other target thus we need to
dynamically query the handler number. This is done by get_handler() which could
be moved to vyos.util at a later point in time so it can be reused for a
firewall rewrite.
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Commit 9e5c6a935e2f55 ("tunnel: T2449: set accept_ra=2 if ipv6 address autoconf
or dhcpv6 is set") referenced wrong key in dict.
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To make SLAAC and DHCPv6 work when forwarding=1, accept_ra must be 2
(default for accept_ra is 1).
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To make SLAAC and DHCPv6 work when forwarding=1, accept_ra must be 2
(default for accept_ra is 1).
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To make SLAAC and DHCPv6 work when forwarding=1, accept_ra must be 2
(default for accept_ra is 1).
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To make SLAAC and DHCPv6 work when forwarding=1, accept_ra must be 2
(default for accept_ra is 1).
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To make SLAAC and DHCPv6 work when forwarding=1, accept_ra must be 2
(default for accept_ra is 1).
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validator: T2417: try to make the code clearer
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wireless: T2427: migrate to use common configdict and vlan functions, add common interface includes to template
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openvpn: T2241: fix wrong indent caused by 66e15005
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T2435: fix syntax errors
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The default of systemd services Type=simple isn't suitable for dhcrelay and
other daemons.
- change service type to forking
- add RuntimeDirectory
- set PIDFile
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The default of systemd services Type=simple isn't suitable for dhcrelay and
other daemons.
- change service type to forking
- add RuntimeDirectory
- set PIDFile
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The default of systemd services Type=simple isn't suitable for dhcpd and
other daemons.
- change service type to forking
- add RuntimeDirectory
- set paths to files in Environment
- set PIDFile
- validate config and lease file in ExecStartPre
- add -q to make dhcpd quiet and only log to syslog
- set Restart=always
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The default of systemd services Type=simple isn't suitable for dhcpd and
other daemons.
- change service type to forking
- add RuntimeDirectory
- set paths to files in Environment
- set PIDFile
- validate config and lease file in ExecStartPre
- add -q to make dhcpd quiet and only log to syslog
- set Restart=always
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Other interfaces were previously migrated, but this one was forgotten,
causing a commit error:
File "/usr/libexec/vyos/conf_mode/interfaces-wireless.py", line 621,
in verify
verify_vlan_config(wifi)
File "/usr/lib/python3/dist-packages/vyos/ifconfig_vlan.py", line 155,
in verify_vlan_config
for vif in config['vif'].values():
AttributeError: 'list' object has no attribute 'values'
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