lo        no wireless extensions.

eth0      no wireless extensions.

wmaster0  no wireless extensions.

wlan0     IEEE 802.11bg  ESSID:"Mr.Black-1"  
          Mode:Managed  Frequency:2.422 GHz  Access Point: 00:24:01:16:CC:CE   
          Bit Rate=54 Mb/s   Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:EA12-7DAA-5F1B-1EF8-49E6-7EBF-48B2-68A2-DDEF-9204-9680-A5A0-686D-FEA2-95FE-8E21 [3]
          Power Management:off
          Link Quality=56/70  Signal level=-54 dBm  Noise level=-102 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0