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From: Jamie Lokier <jamie@shareable.org>
To: dlaor@redhat.com, qemu-devel@nongnu.org
Cc: 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 13:12:49 +0000	[thread overview]
Message-ID: <20090115131249.GD32368@shareable.org> (raw)
In-Reply-To: <496E61F0.8060605@redhat.com>

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

  parent reply	other threads:[~2009-01-15 13:12 UTC|newest]

Thread overview: 18+ 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
2009-01-13 21:23 ` [Qemu-devel] " Alex Williamson
2009-01-14 10:05 ` Dor Laor
2009-01-14 10:05   ` [Qemu-devel] " Dor Laor
2009-01-14 15:34   ` Alex Williamson
2009-01-14 15:34     ` [Qemu-devel] " Alex Williamson
2009-01-14 16:41     ` Jamie Lokier
2009-01-14 16:41       ` Jamie Lokier
2009-01-14 22:06       ` Dor Laor
2009-01-14 22:14         ` Paul Brook
2009-01-15 13:11           ` Jamie Lokier
2009-01-15 13:11             ` Jamie Lokier
2009-01-15 13:12         ` Jamie Lokier [this message]
2009-01-15 13:41           ` Avi Kivity
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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