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Description of problem:
I'm running the latest RHEL 6.4 beta and beyond packages.  Guest networking stopped working and I cannot determine why.


Version-Release number of selected component (if applicable):
$ rpm -qa | grep virt
python-virtinst-0.600.0-13.el6.noarch
virtio-win-1.5.3-1.el6_3.noarch
libvirt-python-0.10.2-11.el6.x86_64
libvirt-client-0.10.2-11.el6.x86_64
libvirt-0.10.2-11.el6.x86_64
virt-manager-0.9.0-18.el6.x86_64
virt-what-1.11-1.2.el6.x86_64
virt-viewer-0.5.2-17.el6.x86_64


How reproducible:
100%


Steps to Reproduce:
1. Start a guest
2. Log into guest
3. Watch wired networking fail with NetworkManager
  
Actual results:


Expected results:


Additional info:

kvm and kernels:

qemu-kvm-0.12.1.2-2.342.el6.x86_64
kernel-2.6.32-347.el6.x86_64

Laine, this looks like BZ 884957 to me, what do you think?

Very likely.

If it starts working again after downgrading to dnsmasq-2.48-9.el6.x86_64 (and restarting all the networks/guests), then definitely that's the problem.

John, does that fix it for you?

I'm running 2.48-10.el6.  

Can you point me to where I can find 2.48-9.el6 or just send it to me?

Try running "yum downgrade dnsmasq" and see what that gives you.

(In reply to comment #6)
> Try running "yum downgrade dnsmasq" and see what that gives you.

Bingo.  Downgraded to dnsmasq-2.48-6.el6.x86_64.rpm and networking works again!

Ok, closing as a duplicate of bug 884957.

*** This bug has been marked as a duplicate of bug 884957 ***