I want to block certain types of websites such as gaming sites from my home wifi network since I have kids who spend a lot of time in those gaming sites. I also want to restrict video streaming on certain computers. I have tried using the instructions given on this site: http://goxpctricks.atwebpages.com/opendns.php which worked for blocking sites, but it blocks websites for all devices on the network. I just want to block for certain computers only, not all computers on the network. Any idea on what I can do?