From Fedora Project Wiki

[root@fedora-14-r710 ~]# ifconfig
em1       Link encap:Ethernet  HWaddr 00:24:E8:2E:DE:FF
          inet addr:172.16.65.55  Bcast:172.16.127.255  Mask:255.255.192.0
          inet6 addr: fe80::224:e8ff:fe2e:deff/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1696 errors:0 dropped:0 overruns:0 frame:0
          TX packets:793 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:150263 (146.7 KiB)  TX bytes:207353 (202.4 KiB)
          Interrupt:36 Memory:d6000000-d6012800

lo        Link encap:Local 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:8 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:480 (480.0 b)  TX bytes:480 (480.0 b)

pci3#2    Link encap:Ethernet  HWaddr 00:1B:21:44:63:41
          inet addr:172.16.68.66  Bcast:172.16.127.255  Mask:255.255.192.0
          inet6 addr: fe80::21b:21ff:fe44:6341/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:120 errors:0 dropped:0 overruns:0 frame:0
          TX packets:13 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:11508 (11.2 KiB)  TX bytes:1554 (1.5 KiB)
          Memory:df3e0000-df400000

pci3#2_0  Link encap:Ethernet  HWaddr F6:62:7E:1D:E5:4C
          inet addr:172.16.67.50  Bcast:172.16.127.255  Mask:255.255.192.0
          inet6 addr: fe80::f462:7eff:fe1d:e54c/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:66 errors:0 dropped:0 overruns:0 frame:0
          TX packets:13 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:6114 (5.9 KiB)  TX bytes:1554 (1.5 KiB)