lo        no wireless extensions.

eth0      no wireless extensions.

wmaster0  no wireless extensions.

wlan0     IEEE 802.11bg  ESSID:"Forever_Autumn"  
          Mode:Managed  Frequency:2.412 GHz  Access Point: 00:1C:DF:A1:C7:2C   
          Bit Rate=54 Mb/s   Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:9679-BF16-4B0F-A697-CB9E-B925-3238-9485-F047-916A-799D-C1B0-863C-3832-E6E6-3CCB [3]
          Power Management:off
          Link Quality=44/70  Signal level=-66 dBm  Noise level=-99 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0