Re: Bridging between vlans

["Marco Matarazzo" <marmata@libero.it>]

Hi Sebastian,

this has been discussed ages ago on the pf mailing list:

http://www.benzedrine.cx/pf/msg02069.html

I don't know if the situation has evolved since then, and how it scales with
an high number of vlan interfaces, since you have to configure two vlan
interfaces and a bridge for each vlan you want to filter on... but at least
it works! ;)

Cheers,
]\/[arco

----- Original Message ----- 
From: "sebastian schmitzdorff" <sebastian.schmitzdorff@ina-germany.de>
To: "openbsd mailinglist - misc" <misc@openbsd.org>
Sent: Wednesday, September 01, 2004 9:47 AM
Subject: Re: Bridging between vlans


> > sorry--i had taken off my firewall hat there for a few minutes--but it's
> > back now.  i think you're barking up the wrong bush with creating vlan
> > interfaces on the openbsd bridge...you should just be able to add the
> > two ethernet interfaces to a bridge and be on your merry way...as long
> > as the layer 3 subnet is the same on vlan0 & vlan1...
> >
> > -j
> >
> > =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~
> > Let the worthy citizens of Chicago get their liquor the best way they
> > can. I'm sick of the job. It's a thankless one and full of grief. -- Al
> > Capone
> > =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~
>
> well that was actually my first thought and also my first approach to
> bridge the two vlans. I've tried various combinations of configuration,
> interfaces configured as vlans and bridging between vlan0 and vlan1,
> interfaces unconfigured(just up) and bridging between fxp0 and xl0.
> Enabled and disabled the Spanning Tree of the switch, Configured the
> bridge ports as vlan trunks and disabled it again and so on.
> That is why I came to the question if it is possible at all with the
> switch I am using.
>
> 3com SuperStack II Desktop Switch
>
> My next try will be to replace the 3com 3c905 network card.
>
> Still, any comments are very welcome. Maybe I'm to blind to see a
> trivial solution to the problem.
>
> best regards,
>
> Sebastian