Is there any way to calculate how much data has passed (in/out) of an ADSL link over a period of time?
Our telco's idea of having ADSL is to limit the quantity of data for businesses to 2GB per month and they will charge for every extra MB used! (talk about monopoly!).
So what I need to know is how to calculate how much data has gone out/in the ADSL pipe and present me with a total each month, week, day.