So I have been googling/searching around and cannot find the correct information (mostly because bandwidth limiting refers to QOS and throttling speeds) about setting a hard limit on how much bandwidth a single computer can use up total per month. Heres my situation: ISP sent me a warning for excessive bandwidth usage (180gb used past 2 months for 75gb limit) and I had set up a QOS in hopes of somewhat aiding this. However, while it does as I programmed it to, the problem is mostly streaming videos (so all the p2p limiting guides dont work). So I currently set up my QOS so that streaming video does not hog the entire bandwidth at any given time (original problem which is solved using QOS) causing slow internet. Now the issue is I set it up just enough that its watchable, but I do not know how to set a hard limit on how much data transfer they can use (which is what ISP is complaining about). So what I want, mostly since its 2 computers that are causing all this, is a way to set, for example, 15GB of TOTAL bandwidth usage per month and then heavily throttle their internet or cut it off entirely until end of month. Even just a simple total bandwidth usage monitor per ip/mac will help me alot as I can manually limit it then so I dont exceed the bandwidth limit per month set by ISP. Thanks for any help.