'/sbin/ifconfig -a' returns:

lo              Link encap:Local Loopback
                 inet addr:127.0.0.1 Mask:255.0.0.0
                 UP LOOPBACK RUNNING MTU :16436 Metric:1
                 RX packets:1489 errors:0 dropped:0 overruns:0 frame:0
                 TX packets:1489 errors:0 dropped:0 overruns:0 carrier:0
                 collisions:0 txqueuelen:0
                 RX bytes:2499880 (2.3 MiB) TX bytes:2499880 (2.3 MiB)