I am running a small wireless network for a school (all computers are Windows) and would like to stop those that are using the Wireless Internet from hitting possibly banned web pages (e.g. redirecting a user from http://www.gamefaqs.com to http://www.mypage.com/banned.html). I need to only do this for a number of websites and can track these users down by IP and MAC Address if needed.
How would I redirect a user?
Note: I am fully aware of adult filters and these kinds of things, but this school only has a couple of computers and I would only like to block certain people from viewing certain websites, primarily to stop them cheating. Is there a way to do this from a basic wireless router?