lo        no wireless extensions.

eth0      no wireless extensions.

wmaster0  no wireless extensions.

vboxnet0  no wireless extensions.

wlan0     IEEE 802.11bg  ESSID:"FRITZ!Box"  
          Mode:Managed  Frequency:2.472 GHz  Access Point: 00:1F:3F:D5:F8:1E   
          Bit Rate=12 Mb/s   Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:44F8-BB91-B0BB-3CB4-9CF3-76F3-AA87-B72C-2E11-073E-6018-132B-D4DE-5F25-F49C-3272 [2]
          Power Management:off
          Link Quality=17/70  Signal level=-93 dBm  Noise level=-103 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0