lo        no wireless extensions.

eth0      no wireless extensions.

wmaster0  no wireless extensions.

pan0      no wireless extensions.

vboxnet0  no wireless extensions.

wlan0     IEEE 802.11abg  ESSID:"OLYMPUS_D2"  
          Mode:Managed  Frequency:2.437 GHz  Access Point: 00:13:F7:2C:F3:C9   
          Bit Rate=24 Mb/s   Tx-Power=15 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=31/70  Signal level=-79 dBm  Noise level=-127 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0