I require a virtual network with VLAN be build between two virtual hosts - which can be (lxc/ vbox -ubuntu or win xp). I tried with lxc and vbox with Ubuntu and was finding difficult to make it work without vlan, but was successful with vbox with xp. vbox-xp1 --- br1 ---------------- br2 ---- vbox-xp2 The config is: brctl addbr br1; brctl addbr br2 ifconfig br1 up; ifconfig br2 up stp br1 off; stp br2 off ip link add name br1-br2-l0 type veth peer name br1-br2-l1 sudo brctl addif br1 br1-br2-l0 sudo brctl addif br2 br1-br2-l1 vbox - xp 1 and 2 with network ; bridged and br1 and br2 respectively. The adapter is intel PRO/1000 MT Server and driver installed in guests. Configured IPs and two hosts pinged! VLAN config: ip link add link br1 name br1-2.5 type vlan id 5 brctl addif br2 br1-2.5 create vlan 5 in xp 1 and 2 and assign ip address Ping on with this config does not work. Wireshark trace on interface br1-br2-l1 / br1-2.5 shows that one ping results in ~240 ping packets and each growing by 4 bytes - first one being correct and 60, ping does not reach other host as I see mac is not learnt[arp -a]. -- if br1-2.5 is not configured, I see untagged packets in br1-br2-l1/0, but still not reaching other host as mac is not learnt. if br1-br2-l0/1 is made down, even if br1-2.5 is up, I count not see any packets. I tried with ebtables, but still could not make a correct config to work. -- If any one here are aware of any configuration, please let me know. I need to make a network of switches. Seems I have a very long way. Sorry for a very long question. Thanks and regards, vy