lo        no wireless extensions.

eth0      no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:"Kaffe1668"  
          Mode:Managed  Frequency:2.462 GHz  Access Point: 00:1F:90:E7:6E:02   
          Bit Rate=12 Mb/s   Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key: <hidden>
          Power Management:off
          Link Quality=29/70  Signal level=-81 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0