ifconfig:
sven@sven-desktop:~s if config
lo link encap:local loopback
inet addr:123.0.0.1 mask: 255.0.0.0
inet6 addr: ::1/128 scope:host
UP LOOPBACK RUNNING MTU:16436 metric:1
RX packets:10962 errors 0. dropped: 0 overruns: 0 frame0
TX packets:10962 errors 0. dropped: 0 overruns: 0 carrier:0
collisions:0 txzueuelen:0
RX bytes:663516 (666.5kb) TX bytes:663516 (663.5kb)