1: lo: 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: eth0: mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:1b:fc:e1:73:58 brd ff:ff:ff:ff:ff:ff inet 192.168.1.4/24 brd 192.168.1.255 scope global eth0 inet6 fe80::21b:fcff:fee1:7358/64 scope link valid_lft forever preferred_lft forever 3: eth1: mtu 1500 qdisc pfifo_fast state DOWN qlen 1000 link/ether 00:1b:fc:e1:66:86 brd ff:ff:ff:ff:ff:ff 4: wmaster0: mtu 0 qdisc pfifo_fast state UNKNOWN qlen 1000 link/ieee802.11 00:15:af:22:de:62 brd 00:00:00:00:00:00 5: wlan0: mtu 1500 qdisc pfifo_fast state DOWN qlen 1000 link/ether 00:15:af:22:de:62 brd ff:ff:ff:ff:ff:ff