ifconfig -a покажите
eth0 Link encap:Ethernet HWaddr 00:1a:92:37:b0:7f
inet6 addr: fe80::21a:92ff:fe37:b07f/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3135 errors:0 dropped:0 overruns:0 frame:0
TX packets:50 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:254931 (254.9 KB) TX bytes:9824 (9.8 KB)
Interrupt:20
lo Link encap:Локальная петля (Loopback)
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:128 errors:0 dropped:0 overruns:0 frame:0
TX packets:128 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:9600 (9.6 KB) TX bytes:9600 (9.6 KB)