Router Network Usage, Possible to monitor?

[Chimaera]

I was viewing this thread and a question popped into my mind

At my house i supply wireless to a couple of tenants so i have it setup like this

Main Router attached to the Incoming Cable network Line

My pc attached to that with no restrictions

Cable from main router to a netgear router which provides wireless to the tenants

I have keywords set in this one against downloading which only applies to them so i can surf and download but they are tied with the keywords to stop torrents etc.

Is it possible to monitor the traffic at the 192.168.0.1 router which is mine and then i can keep an eye on whats passing thru to see if there is anything Ive missed.

i.e if there is high traffic i know Ive missed a keyword or 2 and can take steps to alter the list.

Btw there is no network between the routers, think of it as a wireless extender

Any thoughts?

[qsek]

I would fancy that too, but i think it depends on what router you have and if it is possible to communicate with it through some kind of interface.