root@paperino:~# ifconfig -a
eth0      Link encap:Ethernet  HWaddr 00:04:76:6F:43:85  
          inet addr:192.168.2.1  Bcast:192.168.2.255  Mask:255.255.255.0
          UP BROADCAST MULTICAST  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
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
          Interrupt:10 Base address:0x6f80 

eth2      Link encap:Ethernet  HWaddr 00:0A:E6:D5:EC:CB  
          inet addr:192.168.1.3  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::20a:e6ff:fed5:eccb/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:126 errors:0 dropped:0 overruns:0 frame:0
          TX packets:156 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:22696 (22.1 KiB)  TX bytes:17434 (17.0 KiB)
          Interrupt:10 Base address:0xd400 

less /etc/iftab
# This file assigns persistent names to network interfaces.
# See iftab(5) for syntax.

eth0 mac 00:04:76:6f:43:85 arp 1
eth1 mac 00:50:04:31:de:c9 arp 1

root@paperino:~# mii-tool
eth0: no link
eth2: negotiated 100baseTx-FD, link ok