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: Thu, 15 Jan 2009 13:12:49 +0000 Message-ID: <20090115131249.GD32368@shareable.org> References: <1231881829.9095.191.camel@bling> <496DB8D1.2070101@redhat.com> <1231947298.7109.262.camel@lappy> <20090114164155.GA6431@shareable.org> <496E61F0.8060605@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Mark McLoughlin , kvm To: dlaor@redhat.com, qemu-devel@nongnu.org Return-path: Received: from mail2.shareable.org ([80.68.89.115]:36087 "EHLO mail2.shareable.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752006AbZAONMw (ORCPT ); Thu, 15 Jan 2009 08:12:52 -0500 Content-Disposition: inline In-Reply-To: <496E61F0.8060605@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: Dor Laor wrote: > What I meant is that if we allow the guest to change his mac address, it > can deliberately > change it to other hosts/guests mac and thus create networking problems. > Although guest can always mangle packets, maybe it worth enforcing these > macs for the guest. Although it can create network problems, sometimes it is also wanted. I think if you want to restrict the guests's ability to break the network by changing its MAC, it would be appropriate to have an option to completely lock down the MAC so the guest can't change its MAC at all. -- Jamie