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VLAN Sub-Interfaces (802.1Q)
----------------------------
.. _interfaces-vlan:
802.1Q VLAN interfaces are represented as virtual sub-interfaces in VyOS. The
term used for this is `vif`. Configuration of a tagged sub-interface is
accomplished using the configuration command
`set interfaces ethernet <name> vif <vlan-id>`.
.. code-block:: sh
set interfaces ethernet eth1 vif 100 description 'VLAN 100'
set interfaces ethernet eth1 vif 100 address '192.168.100.1/24'
set interfaces ethernet eth1 vif 100 address '2001:db8:100::1/64'
Resulting in:
.. code-block:: sh
ethernet eth1 {
address 192.168.100.1/24
address 2001:db8:100::1/64
description INSIDE
duplex auto
hw-id 00:0c:29:44:3b:19
smp_affinity auto
speed auto
vif 100 {
address 192.168.100.1/24
description "VLAN 100"
}
}
VLAN interfaces are shown as `<name>.<vlan-id>`, e.g. `eth1.100`:
.. code-block:: sh
vyos@vyos:~$ show interfaces
Codes: S - State, L - Link, u - Up, D - Down, A - Admin Down
Interface IP Address S/L Description
--------- ---------- --- -----------
eth0 172.16.51.129/24 u/u OUTSIDE
eth1 192.168.0.1/24 u/u INSIDE
eth1.100 192.168.100.1/24 u/u VLAN 100
lo 127.0.0.1/8 u/u
::1/128
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