debian:/home/mj# iwlist ath0 scanning
ath0      Scan completed :
          Cell 01 - Address: 00:15:E9:64:6D:6E
                    ESSID:"default"
                    Mode:Master
                    Frequency:2.437 GHz (Channel 6)
                    Quality=40/94  Signal level=-55 dBm  Noise level=-95 dBm
                    Encryption key:on
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              12 Mb/s; 24 Mb/s; 36 Mb/s; 9 Mb/s; 18 Mb/s
                              48 Mb/s; 54 Mb/s
                    Extra:bcn_int=100
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (1) : TKIP
                        Authentication Suites (1) : PSK