lo        no wireless extensions.

eth0      no wireless extensions.

wmaster0  no wireless extensions.

pan0      no wireless extensions.

wc0       no wireless extensions.

wlan0     IEEE 802.11abgn  ESSID:"Viswanathan"  
          Mode:Managed  Frequency:2.462 GHz  Access Point: 00:0F:66:25:41:D4   
          Bit Rate=54 Mb/s   Tx-Power=15 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:F13E-EFEC-E685-1F86-06BF-E1E3-C4D6-D6FD-D9DA-0EEE-D258-21BE-5150-FD07-FC4C-7563 [3]
          Power Management:off
          Link Quality=64/70  Signal level=-46 dBm  Noise level=-87 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0