On 08/18/2012 02:57 PM, Theo Band wrote: > Do you have iptables enabled? If so add a rule for the bridge as well. Red Hat's documentation covers that. Administrators have two options. They can add an iptables rule that allows traffic, or they can configure the bridged traffic to not pass through iptables. The latter should use fewer CPU cycles, improving guest performance. https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/5/html/Virtualization/sect-Virtualization-Network_Configuration-Bridged_networking_with_libvirt.html