WiFi monitoring

You can see which wireless networks are active in your neighborhood. This is handy if you are monitoring an office environment for Rouge APs installed against the company's policy.

To do this, type the following code in the SSH terminal:

iwlist wlan0 scan

You will see the following code listing:

Cell 01 - Address: 00:11:22:33:44:55
          ESSID:"bills_network"
          Mode:Master
          Channel:11
          Frequency:2.462 GHz (Channel 11)
          Quality=100/100  Signal level:-47dBm  Noise level=- 100dBm
          Encryption key:off
          .
          .
          .

You can see your wireless hub's link quality continuously on the screen by entering the following code:

watch -n 1 cat /proc/net/wireless

Or only once by entering the following code:

cat /proc/net/wireless

Wavemon

Wavemon is a simple ASCII text-based program that you can use to monitor your WiFi connections to the BeagleBone.

The software can be downloaded from

http://eden-feed.erg.abdn.ac.uk/wavemon...