From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: tun/tap and Vlans Date: Tue, 19 May 2009 10:45:18 +0300 Message-ID: <4A12638E.9060701@redhat.com> References: <0199E0D51A61344794750DC57738F58E66BBF927A9@GVW1118EXC.americas.hpqcorp.net> <4A0A7556.4070406@redhat.com> <0199E0D51A61344794750DC57738F58E66BC980A2D@GVW1118EXC.americas.hpqcorp.net> <4A107E3A.9050209@redhat.com> <1242717491.28272.12.camel@larosa> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: "kvm@vger.kernel.org" To: Lukas Kolbe Return-path: Received: from mx2.redhat.com ([66.187.237.31]:34465 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750759AbZESHpg (ORCPT ); Tue, 19 May 2009 03:45:36 -0400 In-Reply-To: <1242717491.28272.12.camel@larosa> Sender: kvm-owner@vger.kernel.org List-ID: Lukas Kolbe wrote: >> Right, I guess you'd see this with a real switch as well? Maybe have >> your guest send a packet out once in a while so the bridge can learn its >> MAC address (we do this after migration, for example). >> > > Does this mean that it is not possible for having each tun device in a > seperate bridge that serves a seperate Vlan? We have experienced a > strange problem that we couldn't yet explain. Given this setup: > > Guest Host > kvm1 --- eth0 -+- bridge0 --- vlan1 \ > | +-- eth0 > kvm2 -+- eth0 -/ / > \- eth1 --- bridge1 --- vlan2 + > > When sending packets through kvm2/eth0, they appear on both bridges and > also vlans, also when sending packets through kvm2/eth1. When the guest > has only one interface, the packets only appear on one bridge and one > vlan as it's supposed to be. > > Can this be worked around? > This is strange. Can you post the command line you used to start kvm2? -- error compiling committee.c: too many arguments to function