lo        no wireless extensions.

eth0      no wireless extensions.

usb0      no wireless extensions.

eth1      IEEE 802.11g  ESSID:"BEA20"  
          Mode:Managed  Frequency:2.462 GHz  Access Point: 00:18:F6:00:F4:4F   
          Bit Rate:36 Mb/s   Tx-Power=20 dBm   Sensitivity=8/0  
          Retry limit:7   RTS thr:off   Fragment thr:off
          Encryption key:10C1-9700-2226-AF9B-D869-EC25-24CC-0A55   Security mode:open
          Power Management:off
          Link Quality=86/100  Signal level=-40 dBm  Noise level=-89 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:2