Hi,
I have a client station (sta/managed) for which I need to restrict the wireless range. That client use a ubiquiti nanostation m2 (whose integrated antenna is 10 or 11dBi) and runs openwrt 15.05 (custom compiled). That client easily access an AP at 2.5km from it when its tx power is 20dBm.
When I lower tx power to 3dBm (using 'iwconfig wlan0 txpower 3), iwconfig actually shows that 3dBm level but I still can connect to and exchange with that AP at 2.5km far from the client.
Is that normal, or could actually the radio be still using its max power without linux knowing it? How can I check it?
Thank you for your help.