[Qemu-devel] Bridge with qemu VMs & VDE

[Adrian Gschwend <ktk@netlabs.org>]

Hi all,

I try to connect my qemu sessions to the "normal" local network, I would
like to do it bridged, which means I don't want to port/ip forwards or
anything like this.

I set up VDEv2.0 and launched vde_switch, tap0 gets created. As long as
I work like this and start qemu with vdeqemu everything works fine, I
can use the whole setup as a virtual switch and ping the tun0 IP and the
VMs.

Now I thought I will create a bridge interface, let's call it br0. I add
eth0 to the bridge with "brctl addif eth0", and I do the same for tap0.

Problem is that it doesn't seem to work, brctl show still shows both
interaces but I can't do anything with tap0 now anymore, neither tcpdump
from the host nor pinging or anything from the guest.

I checked all docs I found for VDE but I don't get what I am doing
wrong. Is this possible after all with VDE? If not, what other options
do I have to use qemu sessions in a transparent way from the network POV?

thanks

Adrian