Who used what?

[spootnicks]

Hi,

I need some help. Presently we're sharing a T1 line with a sister company of ours. I would like to measure the amount of bandwidth we're using over a certain period, lets say 1 month, and provide that to our sister company. And they will do the same thing from their side.

Here is an overview what of what we're using:

IP40 (located at the branch), connected via a VPN to our IP350 (running NGX).

Is there a way I can create some sort of report that will show me all the bandwidth that has been consumed by us for a 1 month period?

Thanks!