lo        no wireless extensions.

eth0      no wireless extensions.

wmaster0  no wireless extensions.

vboxnet0  no wireless extensions.

wlan0     IEEE 802.11bg  ESSID:"wind"  
          Mode:Managed  Frequency:2.462 GHz  Access Point: 00:11:50:31:63:21   
          Bit Rate=48 Mb/s   Tx-Power=13 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:4860-2BED-7B0D-5D67-8EF3-9CCD-A6BD-6128 [3]
          Power Management:on
          Link Quality=66/70  Signal level=-44 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0