lo        no wireless extensions.

eth0      no wireless extensions.

wmaster0  no wireless extensions.

wlan0     IEEE 802.11bg  ESSID:"USA"  
          Mode:Managed  Frequency:2.452 GHz  Access Point: 00:1B:2F:D5:E3:D2   
          Bit Rate=54 Mb/s   Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:F9F9-1403-33ED-21B5-ABF8-8697-CB9C-3755-6048-5762-7380-C4DA-3C33-8E14-9547-22FB [2]
          Power Management:off
          Link Quality=60/70  Signal level=-50 dBm  Noise level=-67 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0