bt ~ # iwconfig
lo        no wireless extensions.

wlan0     802.11b/g  Mode:Managed  Channel=13
          Access Point: Not-Associated   Bit Rate=11 Mb/s   Tx-Power=5 dBm
          Retry:on   Fragment thr:off
          Encryption key:off
          Link Quality:17/100  Signal level:-240 dBm  Noise level:-173 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

bt ~ #
bt ~ # ifconfig -a
lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  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:0
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

wlan0     Link encap:Ethernet  HWaddr 00:C0:CA:1A:74:18
          BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:5 dropped:28 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)