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Subject: Re: [Qemu-devel] Question about tun/tap networking
From: Arne Bernin <arne@alamut.de>
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To: qemu mailing list <qemu-devel@nongnu.org>

On Mon, 2004-05-03 at 05:09, Jim C. Brown wrote:

Hi Jim,

> I recommend using vde by Renzo Davoli instead of the default tuntap.
> I am able to network 2 instances of windows 98 (in separate qemu's) and
> minix 2.0.4 (in a hand-modified bochs). It worked without a hitch, and all
> the machines are on the same subnet.
> 
> You still need forwarding to let the virtual machines see the lan or the
> internet, however. The plus with vde is that you don't need to set up routing
> for all these different tunN devices. (I use the Shorewall firewall, and using
> tun was a pain...vde means I just have to set up routing and masquerading
> for tap0, instead of for tun0, tun1, tun2, ...)
> 
may you tell me how you set up your vde network ? I downloaded vde,
installed it, bootet 2 qemus (on the same subnet) and tried to ping each
other... I does not work, but i can ping the host they run on using a
tap0 device, and see the who-has... arp stuff while running tcpdump on
tap0. So it would be very interesting how you configured your vde_switch
qemu setup for multiple machines on the same vde_switch.

thanks,
          arne