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iwlist ath0 scanning

ath0      Scan completed :
          Cell 01 - Address: 00:11:22:33:44:55
                    ESSID:"ssidname1"
                    Mode:Master
                    Frequency:2.412 GHz (Channel 1)
                    Quality=94/94  Signal level=-45 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
                              9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
                              22.5 Mb/s; 22.5 Mb/s
                    Extra:bcn_int=100
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    Extra:wme_ie=dd180050f2020101030003a4000027a4000042435e0062322f00
                    Extra:ath_ie=dd0900037f01010000ff7f
          Cell 02 - Address: 00:11:22:33:44:66
                    ESSID:"TP-LINK_D1"
                    Mode:Master
                    Frequency:2.412 GHz (Channel 1)
                    Quality=56/94  Signal level=-74 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
                              9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
                              48 Mb/s; 54 Mb/s
                    Extra:bcn_int=100
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: WPA Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    Extra:wme_ie=dd180050f2020101850003a4000027a4000042435e0062322f00
                    Extra:ath_ie=dd0900037f01010000ff7f
                    IE: Unknown: DD260050F204104A0001101044000102104900140024E26002000101600000020001600100020001
          Cell 03 - Address: 00:11:22:33:44:77
                    ESSID:""
                    Mode:Master
                    Frequency:2.412 GHz (Channel 1)
                    Quality=21/94  Signal level=-85 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
                              9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
                              48 Mb/s; 54 Mb/s
                    Extra:bcn_int=100
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    Extra:wme_ie=dd180050f2020101030003a4000027a4000042435e0062322f00
                    Extra:ath_ie=dd0900037f01010000ff7f
                    IE: Unknown: DD0E0050F204104A0001101044000102