se faccio l'ifconfig la situazione che ho è questa:

eth0
link encap: ethernet HWaddr 00:13:xx...
UP BROADCAST PROMISC MILTICAST MTU:1500 METRIC:1
RX Packets:0 errors:0 dropped:0 overruns:0 frame:0
TX Packets:0 errors:0 dropped:0 overruns:0 carrier:0
collision:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Interrupt:18 Base address:0xc00

eth0:0
link encap: ethernet HWaddr 00:13:xx...
UP BROADCAST PROMISC MILTICAST MTU:1500 METRIC:1
Interrupt:18 Base address:0xc00

eth1
link encap: ethernet HWaddr 00:11:xx...
inet6 addr: fe80:211:xxx... Scope:Link
UP BROADCAST PROMISC MILTICAST MTU:1500 METRIC:1
RX Packets:676 errors:0 dropped:0 overruns:0 frame:0
TX Packets:6 errors:0 dropped:0 overruns:0 carrier:0
collision:0 txqueuelen:1000
RX bytes:53370 (52.1 KiB) TX bytes:468 (468.0 b)
Interrupt:20 Base address:0x2800

br0
link encap: ethernet HWaddr 00:13:xx...
inet addr: 192.168.254.11 Bcast: 192.168.254.255 Mask:255.255.255.0
inet6 addr: fe80::213:xxx... Scope:Link
UP BROADCAST PROMISC MILTICAST MTU:1500 METRIC:1
RX Packets:0 errors:0 dropped:0 overruns:0 frame:0
TX Packets:15 errors:0 dropped:0 overruns:0 carrier:0
collision:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)