lo        no wireless extensions.

eth0      no wireless extensions.

wmaster0  no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:"Sam"  
          Mode:Managed  Frequency:2.412 GHz  Access Point: 00:26:F2:F6:53:BF   
          Bit Rate=54 Mb/s   Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:E7FA-2322-AEFA-8F44-C4F7-D5C6-DE30-7F3B-7BB0-1090-03AA-9849-E359-B91B-40CA-3601 [3]
          Power Management:on
          Link Quality=27/70  Signal level=-83 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0