$ ip addr show
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
    inet 169.254.169.254/32 scope link lo
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master br100 state UP qlen 1000
    link/ether 08:00:27:08:bc:42 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::a00:27ff:fe08:bc42/64 scope link
       valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 08:00:27:a9:c5:bc brd ff:ff:ff:ff:ff:ff
    inet 192.168.56.20/24 scope global eth1
    inet6 fe80::a00:27ff:fea9:c5bc/64 scope link
       valid_lft forever preferred_lft forever
4: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN
    link/ether 3a:c2:12:19:7c:d3 brd ff:ff:ff:ff:ff:ff
    inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
7: br100: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP
    link/ether 08:00:27:08:bc:42 brd ff:ff:ff:ff:ff:ff
    inet 10.0.0.1/24 brd 10.0.0.255 scope global br100
    inet 10.0.2.15/24 brd 10.0.2.255 scope global br100
    inet6 fe80::a00:27ff:fe08:bc42/64 scope link
       valid_lft forever preferred_lft forever
8: vnet0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master br100 state UNKNOWN qlen 500
    link/ether fe:16:3e:20:6b:e3 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::fc16:3eff:fe20:6be3/64 scope link
       valid_lft forever preferred_lft forever