$ ip addr

1: lo:  mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 
   loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 
   inet 127.0.0.1/8 scope host lo 
   valid_lft forever preferred_lft forever 
73: eth1@if74:  mtu 1500 qdisc noqueue state UP group default 
   link/ether 02:42:0a:0a:0a:03 brd ff:ff:ff:ff:ff:ff link-netnsid 0 
   inet 10.10.10.3/24 brd 10.10.10.255 scope global eth1 
   valid_lft forever preferred_lft forever