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Re: [Qemu-devel] Re: [PATCH] Add pcap-based host network bridge
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From: |
Jan Kiszka |
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Subject: |
Re: [Qemu-devel] Re: [PATCH] Add pcap-based host network bridge |
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Date: |
Tue, 12 May 2009 18:34:04 +0200 |
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User-agent: |
Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666 |
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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