Does this help?
[root@localhost ~]# ifconfig
eth0 Link encap:Ethernet HWaddr 00:16:36:89:FF:64
inet addr:192.168.1.121 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::216:36ff:fe89:ff64/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:661 errors:0 dropped:0 overruns:0 frame:0
TX packets:636 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:190723 (186.2 KiB) TX bytes:110447 (107.8 KiB)
Interrupt:169
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)
[root@localhost ~]#
[root@localhost ~]# iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
eth1 IEEE 802.11b/g ESSID:"" Nickname:"Broadcom 4318"
Mode:Managed Access Point: Invalid
RTS thr
ff Fragment thr
ff
Encryption key
ff
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
sit0 no wireless extensions.