root@OpenWrt:/# iw wlan0 scan
BSS 6c:e8:73:b1:45:86(on wlan0)
TSF: 6900919239 usec (0d, 01:55:00)
freq: 2412
beacon interval: 100 TUs
capability: ESS Privacy ShortPreamble SpectrumMgmt ShortSlotTime (0x0531)
signal: -33.00 dBm
last seen: 1220 ms ago
Information elements from Probe Response frame:
SSID: wr_znjj
Supported rates: 1.0* 2.0* 5.5* 11.0* 6.0 9.0 12.0 18.0
DS Parameter set: channel 1
Country: US Environment: Indoor/Outdoor
Channels [1 - 13] @ 20 dBm
Power constraint: 0 dB
ERP: <n