lo        no wireless extensions.

eth0      no wireless extensions.

pan0      no wireless extensions.

wlan0     802.11bg  ESSID:"wiedemann"  
          Mode:Managed  Frequency=2.422 GHz  Access Point: 00:15:0C:0A:FB:2A   
          Bit Rate=36 Mb/s   
          Retry:on   RTS thr:off   Fragment thr:off
          Encryption key: <hidden>
          Power Management:off
          Link Quality=78/100  Signal level=-57 dBm  Noise level=-109 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0