Bridge between 2 different vlans

Hello all. 

I am still a beginner with ebtables, and would really appreciate your
help with the following.

I am using fedora core 2 as bridge firewall. 

My current setup is as follows

 

 

+--------------------+   trunk             eth0 +----------------+  eth1
trunk  +--------------------+

 | Vlan Switch 1 |-------------------------------| FW/bridge
|-----------------------------------| Vlan Switch 2 |

+--------------------+                              +----------------+
+--------------------+            

            | vlan 2
| vlan 3

            |
|

            |
|

         PC1
PC2

 

I want to have PC1 and PC2 on the same subnet, that is, connected
through the bridge.

My configuration is as follows:

 

vconfig add eth0 2

vconfig add eth1 3

brctl addbr br 

brctl addif br eth0.2

brctl addif br eth1.3

ifconfig eth0.2 0.0.0.0 up

ifconfig eth1.3 0.0.0.0 up

ifconfig br up

 

The setup still does not work. However, if I use vlan 2 instead of 3 in
Switch 2, and replace 3 by 2 in the above configuration, the setup works
perfectly, as if the vlan tag is not stripped.

Is there anything I could do with ebtables to make the original setup
work?

Thanks for your time.

Any help would be greatly appreciated.