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Date: Tue, 12 May 2009 18:34:04 +0200
From: Jan Kiszka <jan.kiszka@siemens.com>
MIME-Version: 1.0
Subject: Re: [Qemu-devel] Re: [PATCH] Add pcap-based host network bridge
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To: Lennart Sorensen <lsorense@csclub.uwaterloo.ca>
Cc: qemu-devel@nongnu.org, Sebastian Herbszt <herbszt@gmx.de>

Lennart Sorensen wrote:
> On Tue, May 12, 2009 at 10:23:43AM +0200, Jan Kiszka wrote:
>> We basically dropped the idea as it turned out that - at least under
>> Linux - there is no host<->guest link realizable with reasonable effort.
> 
> Has anyone ever looked at how vmware's vmnet does it?

Whatever they do (I bet it's nothing trivial): Everything that
complicates the pcap-based approach beyond a certain level (roughly the
one that is required for tap-based bridges) makes it unattractive. There
are alternatives (except for ancient Win2k IIRC), pcap just appeared to
be a cheap shortcut. But that turned out to be not true.

Jan

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