[CentOS-virt] xenbr0 isn't created anymore

Mon Mar 31 14:21:10 UTC 2008
Ross S. W. Walker <rwalker at medallion.com>

Kai Schaetzl wrote:
> Ross S. W. Walker wrote on Fri, 28 Mar 2008 16:12:20 -0400:
> > I think you are mixing the versions up or made a typo,
> yes, I meant to write "Xen < 3.2".
> > My configs still have xenbr0 listed, but the scripts will take any
> > xenbr* and convert it to eth* if it exists and is a bridge. I don't
> > have any problem with DHCP. I also have iptables currently disabled.
> Before going to the new Xen I tried to use this explanation for building a 
> bridge for xend, but it doesn't work for me at all :-(
> http://henning.schmiedehausen.org/wingnut-diaries/archives/86
> Unfortunately, bridge interfaces are missing from the Red Hat Deployment 
> Guide, I'm still looking for a guide about what can be used in bridge ifcfg 
> files. What I see on the net looks completely different.
> Oh, and you were absolutely right about the routing. I changed the default 
> gateway to fit the public subnet and added a static route for the private 
> subnet and now the additional src in ip route list is gone. Didn't change that 
> the DHCPOFFER doesn't get back to the VM, though :-(


Why not try tcpdump on the bridge interface and see if you can
see the DHCPOFFER/DHCPACK and what MACs it used.


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