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Re: [Qemu-devel] tun/tap networking


From: Henrik Nordstrom
Subject: Re: [Qemu-devel] tun/tap networking
Date: Sat, 1 Oct 2005 19:52:30 +0200 (CEST)

On Sat, 1 Oct 2005, Oliver Gerlich wrote:

That means it would work if the host NIC is connected to a switch? Then
the switch would send packets from the guest which are meant for the
host back to the host NIC and everything's fine! Or did I misunderstand
that now?

In this kind of setup you will need two NICs in the host for this to work. One NIC used by the guest, the other by the host. If you have more than one guest and wants the guests to be able to talk to each other then you basically need one NIC per guest.

Just being connected to a switch does not help as switched (and even hubs) does not bounce packets back on the same port they came from.

Regards
Henrik




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