Hi,
I am interesting to understand qemu network manage too. I search and find
this document:
http://www.h7.dion.ne.jp/~qemu-win/HowToNetwork-en.html
Look if it can help you (I read it very fast but I think it's very
interesting).


2006/8/14, S. P. T. Krishnan <sptkrishnan@gmail.com>:
>
> Hi,
>
> I would like to know how a network packet of data is received by qemu
> and delivered to the guest OS ?
>
> I need to debug/print the incoming data at the qemu-level before it
> reaches the guest OS.
> Can you give me a few hints at what files and structs should I be
> spending some time on ?
>
> I saw vl.c to be of some importance along with /hw/ne2000.c which
> emulates the network card.  However, I want to know the method
> (flow-chart ?) which qemu uses to interact with the host OS and
> transfers the packets of data to the guest OS ?
>
> Many thanks in advance for your time.
>
> regards,
> Krishnan
>
>
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