Thank You for Your time and answer, Pascal: > You need to add a 'bridge_ports' line to indicate that the interface > is a bridge. Otherwise the system does not create it. See man > bridge-utils-interfaces. It did the trick! Now, I have a lot of devices when bringing up br0 interface: eth0, br0, tap0. - I believe only one I need to make my KVM using the network, how I can stop auto bring them too besides br0 only, or eth0 only?