root@sao:# iwlist eth1 scan
eth1      Scan completed :
          Cell 01 - Address: 00:16:B6:06:83:FC
                    ESSID:"PCI-SEDE.NET"
                    Protocol:IEEE 802.11b
                    Mode:Master
                    Channel:14
                    Encryption key:off
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s
                    Quality=100/100  Signal level=-86 dBm  
                    Extra: Last beacon: 4376ms ago
          Cell 02 - Address: 00:16:B6:B3:50:60
                    ESSID:"ELPECAS"
                    Protocol:IEEE 802.11bg
                    Mode:Master
                    Channel:11
                    Encryption key:off
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
                              11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
                              48 Mb/s; 54 Mb/s
                    Quality=100/100  Signal level=-79 dBm  
                    Extra: Last beacon: 36ms ago