From: Jamie Lokier <jamie@shareable.org>
To: qemu-devel@nongnu.org
Cc: dlaor@redhat.com, Mark McLoughlin <markmc@redhat.com>,
kvm <kvm@vger.kernel.org>
Subject: Re: [Qemu-devel] Re: [PATCH 1/5] virtio-net: Allow setting the MAC address via set_config
Date: Thu, 15 Jan 2009 13:11:08 +0000 [thread overview]
Message-ID: <20090115131108.GC32368@shareable.org> (raw)
In-Reply-To: <200901142214.46522.paul@codesourcery.com>
Paul Brook 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.
>
> This doesn't seem any different to real hardware that allows you to
> change the MAC address.
Indeed I have used that on several occasions to workaround pointless
firewalls and home networking restrictions.
People doing MAC-level hot-failover in high-availability environments
do it too.
-- Jamie
next prev parent reply other threads:[~2009-01-15 13:11 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-13 21:23 [PATCH 1/5] virtio-net: Allow setting the MAC address via set_config Alex Williamson
2009-01-14 10:05 ` Dor Laor
2009-01-14 15:34 ` Alex Williamson
2009-01-14 16:41 ` [Qemu-devel] " Jamie Lokier
2009-01-14 22:06 ` Dor Laor
2009-01-14 22:14 ` Paul Brook
2009-01-15 13:11 ` Jamie Lokier [this message]
2009-01-15 13:12 ` Jamie Lokier
2009-01-15 13:41 ` Avi Kivity
2009-01-18 9:37 ` Dor Laor
2009-01-18 9:42 ` Avi Kivity
2009-01-14 22:08 ` Dor Laor
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