[VLAN] Simple Vlan configuration: Untagged Port Issue

[megh at kenati.com (megh ranade)]

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