wlan0     IEEE 802.11bgn  ESSID:"fastweb"  
          Mode:Managed  Frequency:2.462 GHz  Access Point: EC:22:80:E5:3B:1D   
          Bit Rate=1 Mb/s   Tx-Power=20 dBm   
          Retry short limit:7   RTS thr=2347 B   Fragment thr:off
          Power Management:off
          Link Quality=70/70  Signal level=-20 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:66   Missed beacon:0