modprobe 8021q /sbin/vconfig add vnet5 112 /sbin/vconfig add vnet1 112 ifconfig vnet5.112 up ifconfig vnet1.112 up brctl addbr br112 brctl addif br112 vnet5.112 brctl addif br112 vnet1.112 ifconfig br112 up /sbin/vconfig add eth2 123 /sbin/vconfig add vnet5 123 ifconfig eth2.123 up ifconfig vnet5.123 up brctl addbr br123 brctl addif br123 eth2.123 brctl addif br123 vnet5.123 ifconfig br123 up