wlan0     IEEE 802.11bgn  ESSID:"Riccardone-Alice"  
          Mode:Managed  Frequency:2.442 GHz  Access Point: 38:22:9D:F6:DB:B0   
          Bit Rate=18 Mb/s   Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr=2347 B   Fragment thr:off
          Power Management:off
          Link Quality=66/70  Signal level=-44 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:22   Missed beacon:0