[Qemu-devel] Re: [PATCH] Add pcap-based host network bridge

[Jan Kiszka <jan.kiszka@siemens.com>]

Sebastian Herbszt wrote:
> Anthony Liguori wrote:
>> Jan Kiszka wrote:
>>> Well, in case we do not find a workaround for host<->guest
>>> communication, would the patch remain unacceptable even with proper,
>>> prominent documentation of this shortcoming?
>>>   
>>
>> What's the use-case you're trying to address?  Who do you expect to
>> use this functionality?
>>
>> Setting up bridging isn't really that bad on Linux.  Is this primarily
>> targeted at Windows?  libpcap requires a kernel driver on Windows so I
>> don't know that I believe it's a great general solution for Windows
>> either.
> 
> I would really like to see pcap support in mainline (even as a windows only
> feature). Qemu networking with pcap is trivial on windows. No need to
> configure tap bridges, but just specify "ifname" and there you go.

We basically dropped the idea as it turned out that - at least under
Linux - there is no host<->guest link realizable with reasonable effort.

Jan

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