The freeware network protocol analyzer Ethereal does what you're probably
looking to do. Just capture a sample trace of network traffic going into
your router (insert a hub in a link you want to analyze, and hook up a
laptop with ethereal installed on it. Make sure you use a hub, not a
switch), hit statistics, endpoints, and it'll tell you how much traffic is
coming from/going to each endpoint on the network. It'll do it at either
layer 2 (mac addresses), or layer 3/4 (ip addresses/tcp ports). There's
enough info there to tell you what sort of traffic, too. Once you know
who, you'll want to know how, and why.
School Information Technology Discussion <[log in to unmask]> writes:
>Grr, My network / internet keeps grinding to a halt at certain times of
> I would like to find a way to see how much network resources each
>computer is using, so i can find out why I have a bottle neck (virus, new
>download program, video streaming, a specific class, ...). I have a
>cisco pix firewall, Cisco routers, and n2h2 content filter on its own
>server which all internet traffic hits.
>If anyone has any recommendation I would greatly appreciate it.
>Proctor School District
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>Phs: (802) 459-3353 x2113
>Pes: (802) 459-2225 x2018