Re: Bridge between 2 different vlans

Op vr, 18-02-2005 te 09:35 +0200, schreef Ramzi Maalouf:
> +--------------------+   trunk             eth0 +----------------+
> eth1                trunk  +--------------------+
> 
>  | Vlan Switch 1 |-------------------------------| FW/bridge
> |-----------------------------------| Vlan Switch 2 |
> 
> +--------------------+                              +----------------+
> +--------------------+            
> 
>             | vlan 2
> | vlan 3
> 
>             |
> |
> 
>             |
> |
> 
>          PC1
> PC2

Please send mail in plain text format, html is for websites.
 
> 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.

Please use tcpdump and/or ebtables logging to see what exactly is
happening (-i eth0 or -i eth1 will probably give most clues). It's been
a while since I played with vlan, but IIRC something like your setup
should work.

cheers,
Bart




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