Monitor Bandwidth Usage Per IP (or MAC address)?

[awyeah]

My BSD box is the router for my network. I'm looking for a tool that monitors internet bandwidth usage on a per-IP (or per-MAC address) basis. I found net-mgmt/bandwidthd, but it's not very flexible and doesn't seem to persist the data anywhere.

Thanks!

 

[tingo]

There is also net-mgmt/darkstat, I don't know if it will work better for you.

 

[mamalos]

The way ISPs usually do it is through some sort of radius.