Bandwidth Monitoring on small network possible? (someone is killing it)

[sswany]

We have a small network (~40 computers) networked through a large house (college living arrangement). This network shares a business DSL line and for the most part runs pretty smoothly; however, lately it's been going down a lot and the internet is very slow. Some people who live there are convinced that it is KaZaA that is the culprit of this whole ordeal and that one person running KaZaA is taking the whole network and DSL's bandwidth down with them.

I'm wondering if there is some sort of software out there (hardware would be nice, but I dont think that there is any inexpensive to do this) that could monitor the network of this house and tell us who is sucking up the bandwidth for the house?

Any opinions or suggestions are completely welcome, as we'd like this to go away finally.

Thanks guys!

 

[JackMDS]

May be this can Help.

Link to: Can I Monitor my LAN, control the usage of the Internet, and Network Resources by other computers from my main computer?

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[Buzzman151]

the cheapest thing that I can think of is for you to setup a quick and dirty linux routher to use instead of your current one. I"m sure you can trick everyone in to letting you do it since you can tell them its more secure and you can manage every IP"s bandwidth without them ever knowing

sneakay sneakay

 

[n0cmonkey]

mrtg. Combine that with OpenBSD's pf with altq and the problems could be solved pretty easily.