Howdy! I have virtual domains running under libvirt. I have a valid xml definition and it starts fine, except when I add the filterref line as below <interface type='bridge'> <mac address='54:52:00:44:36:d7'/> <source bridge='vlan50'/> <target dev='guest_if0'/> <model type='virtio'/> <filterref filter='clean-traffic'/> </interface> [root at kvm1 qemu]# virsh start centos56_img error: Failed to start domain centos56_img error: internal error Could not get access to ACL tech driver 'ebiptables' [root at kvm1 qemu]# lsmod|grep table ebtables 53441 0 iptable_filter 36161 0 ip_tables 55329 1 iptable_filter x_tables 50505 1 ip_tables Is there a module missing 'ebiptables' or is it misnamed or some other problem? thanx - steve