From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jamie Lokier Subject: Re: [Qemu-devel] Re: [PATCH 1/5] virtio-net: Allow setting the MAC address via set_config Date: Wed, 14 Jan 2009 16:41:55 +0000 Message-ID: <20090114164155.GA6431@shareable.org> References: <1231881829.9095.191.camel@bling> <496DB8D1.2070101@redhat.com> <1231947298.7109.262.camel@lappy> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: dlaor@redhat.com, Mark McLoughlin , kvm To: qemu-devel@nongnu.org Return-path: Received: from mail2.shareable.org ([80.68.89.115]:45640 "EHLO mail2.shareable.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759052AbZANQmE (ORCPT ); Wed, 14 Jan 2009 11:42:04 -0500 Content-Disposition: inline In-Reply-To: <1231947298.7109.262.camel@lappy> Sender: kvm-owner@vger.kernel.org List-ID: Alex Williamson wrote: > > What if the guest will chose the host's mac? > > Thinking about it, I don't think we should test that. > > A concerned host mgmt app can add ebtables roles for such a case. > > > > Maybe we can optionally allow/deny it? > > What's the topology you're thinking of that the virtio-net MAC is also > the host MAC? I typically use a bridge with a tap device, so the > virtio-net MAC is isolated from the host. Thanks, For example you might forward IPX packets to the guest and IP/ARP to the host, using an ebtables rule to distinguish them. From the outside, it would look equivalent to a single host processing both IPX and IP. -- Jamie