christian@christian-laptop:~$ iwlist scan 
lo        Interface doesn't support scanning. 

eth0      Interface doesn't support scanning. 

ra0       Scan completed : 
          Cell 01 - Address: 00:1F:3F:0F:21:B0 
                    ESSID:"FRITZ!Box Fon WLAN 7270" 
                    Mode:Managed 
                    Channel:1 
                    Quality:15/100  Signal level:-84 dBm  Noise level:-97 dBm 
                    Encryption key:on 
                    Bit Rates:18 Mb/s 
                    IE: WPA Version 1 
                        Group Cipher : TKIP 
                        Pairwise Ciphers (1) : TKIP 
                        Authentication Suites (1) : PSK 
                    IE: IEEE 802.11i/WPA2 Version 1 
                        Group Cipher : TKIP 
                        Pairwise Ciphers (1) : CCMP 
                        Authentication Suites (1) : PSK 
          Cell 02 - Address: 00:12:BF:B1:D7:39 
                    ESSID:"WLAN-B1D793" 
                    Mode:Managed 
                    Channel:1 
                    Quality:44/100  Signal level:-72 dBm  Noise level:-97 dBm 
                    Encryption key:on 
                    Bit Rates:18 Mb/s 
                    IE: IEEE 802.11i/WPA2 Version 1 
                        Group Cipher : CCMP 
                        Pairwise Ciphers (1) : CCMP 
                        Authentication Suites (1) : PSK 
          Cell 03 - Address: 00:15:E9:0D:B4:B6 
                    ESSID:"PAMBORNET2" 
                    Mode:Managed 
                    Channel:4 
                    Quality:15/100  Signal level:-84 dBm  Noise level:-97 dBm 
                    Encryption key:on 
                    Bit Rates:11 Mb/s 
          Cell 04 - Address: 00:1A:4F:91:B9:B4 
                    ESSID:"Speedport W 501V" 
                    Mode:Managed 
                    Channel:6 
                    Quality:10/100  Signal level:-86 dBm  Noise level:-97 dBm 
                    Encryption key:on 
                    Bit Rates:22 Mb/s 
                    IE: WPA Version 1 
                        Group Cipher : TKIP 
                        Pairwise Ciphers (1) : TKIP 
                        Authentication Suites (1) : PSK 
          Cell 05 - Address: 00:15:0C:D1:93:16 
                    ESSID:"WLAN-00150CD19316" 
                    Mode:Managed 
                    Channel:11 
                    Quality:20/100  Signal level:-82 dBm  Noise level:-97 dBm 
                    Encryption key:on 
                    Bit Rates:11 Mb/s 
                    IE: WPA Version 1 
                        Group Cipher : TKIP 
                        Pairwise Ciphers (1) : TKIP 
                        Authentication Suites (1) : PSK 
                    IE: IEEE 802.11i/WPA2 Version 1 
                        Group Cipher : TKIP 
                        Pairwise Ciphers (1) : CCMP 
                        Authentication Suites (1) : PSK 
          Cell 06 - Address: 00:04:0E:D6:03:43 
                    ESSID:"" 
                    Mode:Managed 
                    Channel:11 
                    Quality:24/100  Signal level:-80 dBm  Noise level:-97 dBm 
                    Encryption key:on 
                    Bit Rates:11 Mb/s 
                    IE: WPA Version 1 
                        Group Cipher : TKIP 
                        Pairwise Ciphers (1) : TKIP 
                        Authentication Suites (1) : PSK 

pan0      Interface doesn't support scanning.