1: lo: mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 19: eth0@if20: mtu 1450 qdisc noqueue state UP mode DEFAULT group default qlen 1000 link/ether 00:16:3e:70:39:c0 brd ff:ff:ff:ff:ff:ff link-netnsid 0