I want to get the BSSID for a known SSID, how can I do that? Thanks :-)
If I'm not mistaken, it should be the Address shown when issuing
sudo iwlist scanning
wlan0 Scan completed : Cell 01 - Address: 00:11:22:33:44:55 Channel:5 Frequency:2.432 GHz (Channel 5) Quality=70/70 Signal level=-33 dBm Encryption key:on ESSID:"the_known_ssid" Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s 24 Mb/s; 36 Mb/s; 54 Mb/s Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s Mode:Master ...
aircrack-ng can do this.
sudo airmon-ng start eth1 6 to use eth1 to monitor channel 6 (the channel is optional) and then you can use
sudo airodump-ng eth1 to make it show you the BSSID.