Subject: Re: Xen & VLANs
To: Sebastian <>
From: Manuel Bouyer <>
List: port-xen
Date: 05/02/2007 12:12:00
On Wed, May 02, 2007 at 10:30:54AM +0200, Sebastian wrote:
> Hi,
> ich want to bridge different VLANs to some virtual DomUs. I wired the
> Dom0 with a VLAN Trunk and I can create VLAN interfaces in the Dom0.
> But I can't add these VLAN interfaces to the bridges connected to the
> DomUs. I get a "brconfig: add vlan100: Invalid argument" error. I seems
> not possible to add VLAN interfaces to bridges.
> Has anybody a hint how to solve this problem?

What interface do you have in dom0 and what MTU is announced by the
vlan interfaces ?
I've seen this "Invalid argument" error when trying to add an interface whose
MTU doesn't match the bridge's one

Manuel Bouyer, LIP6, Universite Paris VI. 
     NetBSD: 26 ans d'experience feront toujours la difference