I have a SIMPLE configuration: = Vlan5 - ports eth0 (Untagged), eth1 (tagged), eth2(untagged) = Vlan6 - ports eth1 (tagged), eth2 (tagged) Goal ------------ On port eth2, I want to send/receive tagged traffic for both Vlan5 & vlan6. If a untagged frame is received on this port, I EXPECT that the frame is classified as a Vlan5 frame. I TRY to ACHIEVE this by the following cmds: ------------------------------------------------------ vconfig add eth0 5 vconfig add eth1 5 vconfig add eth2 5 vconfig add eth1 6 vconfig add eth2 6 // Bridge for Vlan5 brctl addbr br5 brctl addif br5 eth0.5 brctl addif br5 eth0 // eth0 is a UNTAGGED port of Vlan5 // hence add Whole interface eth0 to br5 brctl addif br5 eth1.5 brctl addif br5 eth2.5 brctl addif br5 eth2 // eth2 is a UnTAGGED port of Vlan5 & // tagged port of Vlan6 (below) //Bridge for Vlan6 brctl addbr br6 brctl addif eth1.6 brct addif eth2.6 // ISSUES: ---------------------------------- For the tagged port (eth1), there is no problem in sending/receiving traffic For the Untagged port(eth0), which is associated with ONLY one Vlan, again there is No Problem For the port (eth2), associated with Vlan5 (Untagged) & Vlan6 (tagged), I have a problem in receiving traffic. For example, I am unable to send any traffic that is tagged. Am I doing the CORRECT thing as far as configuration of the bridges is concerned? Do I need to add any OTHER configuration (e.g. iptables)? -- Megh Ranade
