KVM bridge wonkiness in Fedora19

[Lonni J Friedman]

On Tue, Aug 6, 2013 at 3:59 PM, Patrick Lists
<fedora-list at puzzled.xs4all.nl> wrote:
> On 08/06/2013 11:06 PM, Lonni J Friedman wrote:
> [snip]
>
>> My first question is simply, does anyone else have this working
>> successfully in F19?  And if so, what steps did you need to follow?
>
>
> I have a bridge working using NetworkManager on my F19 x86_64 workstation by
> setting it up through Settings -> Network. It's also a bit wonky in that the
> NetworkManager icon always shows an X for no connection. Guess it does not
> check br0. Not sure if it's related but mtr and wireshark no longer work. I
> have not yet investigated why.
>
>
>> I'm not using NetworkManager at all, its all the network service.
>> There are no firewalls involved anywhere (iptables & firewall services
>> are currently disabled).  Here's the current host configuration:
>
>
> Firewalld is enabled on my box. Had to change the default zone to Home. Make
> sure that zone is also in the /etc/sysconfig/network-scripts/ifcfg-...

I have firewalld disabled completely.  What does your
/etc/sysconfig/network-scripts/ifcfg-br0 (and associated interface)
look like?  Also, can you post your 'brctl show' output?