Необходимо прозрачно пропустить 2 vLAN с 0-го на 2-й порт.
Выдержка из файла конфигурации /etc/network/interfaces :
# ClientName auto br1 iface br1 inet static address 10.11.126.200 netmask 255.255.255.0 pre-up ip link set eth0 up pre-up ip link set eth2 up pre-up vconfig add eth0 2 pre-up vconfig add eth2 2 pre-up ip link set eth0.2 up pre-up ip link set eth2.2 up pre-up brctl addbr br1 pre-up brctl addif br1 eth0.2 pre-up brctl addif br1 eth2.2 post-down brctl delif br1 eth0.2 post-down brctl delif br1 eth2.2 post-down brctl delbr br1 post-down ip link set eth0.2 down post-down ip link set eth2.2 down post-down vconfig rem eth0.2 post-down vconfig rem eth2.2