World IPv6 Day Problems

[Richard W.M. Jones]

On Wed, Jun 08, 2011 at 04:53:51PM +0100, Tom Hughes wrote:
> Ah that's a virtual bridge between your VMs. I'm bridging my VMs to br0 
> which is a bridge that includes the host's ethernet interface so that 
> the guests have direct access to the local LAN and can see the radvd 
> that is running on our gateway router.

Indeed - this is also the way I have libvirt configured, and my guests
are getting IPv6 addresses automatically from radvd running elsewhere
on my LAN.

For reference, here is how I configure the network:

# cat /etc/sysconfig/network-scripts/ifcfg-br0 
DEVICE=br0
TYPE=Bridge
BOOTPROTO=dhcp
ONBOOT=yes
DELAY=0
NM_CONTROLLED=no

and then I just connect each guest directly to the bridge:

    <interface type='bridge'>
      <mac address='52:54:00:12:ab:a9'/>
      <source bridge='br0'/>
      <model type='virtio'/>
    </interface>

http://wiki.libvirt.org/page/Networking#Bridged_networking_.28aka_.22shared_physical_device.22.29

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
virt-p2v converts physical machines to virtual machines.  Boot with a
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