What's the simplest way to enforce a maximum download limit per machine on a network, over a period of time?
For example, 10 GB, per computer, per week?
I'm hoping maybe there's either a custom piece of hardware I can buy online, or some firmware that I could configure to do this (e.g. DD-WRT).
After the limit is up, I'd like it to either cut off the user's access, or throttle the user's download speed, or to notify me somehow.