root@wifi:/etc/init.d$ iwconfig eth2
eth2      IEEE 802.11-DS  ESSID:"LET"  
          Mode:Ad-Hoc  Frequency:2.412 GHz  Cell: D2:D5:6E:47:38:47   
          Tx-Power:19 dBm   
          RTS thr:2347 B   Fragment thr:2346 B   
          Encryption key:off