Current network config on host: # ip addr list 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: em1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000 link/ether 00:1e:0b:21:b8:c4 brd ff:ff:ff:ff:ff:ff inet6 fe80::21e:bff:fe21:b8c4/64 scope link valid_lft forever preferred_lft forever 3: em2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000 link/ether 00:1e:0b:21:b8:c6 brd ff:ff:ff:ff:ff:ff inet6 fe80::21e:bff:fe21:b8c6/64 scope link valid_lft forever preferred_lft forever 4: em3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master ovirtmgmt state UP qlen 1000 link/ether 00:1c:c4:ab:3a:dd brd ff:ff:ff:ff:ff:ff 5: em4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP qlen 1000 link/ether 00:1c:c4:ab:3a:de brd ff:ff:ff:ff:ff:ff inet6 fe80::21c:c4ff:feab:3ade/64 scope link valid_lft forever preferred_lft forever 6: em3.65@em3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP link/ether 00:1c:c4:ab:3a:dd brd ff:ff:ff:ff:ff:ff inet 10.4.4.59/24 brd 10.4.4.255 scope global em3.65 inet6 fe80::21c:c4ff:feab:3add/64 scope link valid_lft forever preferred_lft forever 11: ;vdsmdummy;: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN link/ether 96:14:65:da:bc:c5 brd ff:ff:ff:ff:ff:ff 12: bond0: <BROADCAST,MULTICAST,MASTER> mtu 1500 qdisc noop state DOWN link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff 13: bond4: <BROADCAST,MULTICAST,MASTER> mtu 1500 qdisc noop state DOWN link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff 14: bond1: <BROADCAST,MULTICAST,MASTER> mtu 1500 qdisc noop state DOWN link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff 15: ovirtmgmt: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP link/ether 00:1c:c4:ab:3a:dd brd ff:ff:ff:ff:ff:ff inet6 fe80::21c:c4ff:feab:3add/64 scope link valid_lft forever preferred_lft forever # brctl show bridge name bridge id STP enabled interfaces ;vdsmdummy; 8000.000000000000 no ovirtmgmt 8000.001cc4ab3add no em3 Do I have perhaps to say/config that ovirtmgmt is tagged in any way?