Question : Parental control for the internet

I work in a school and have a Draytek Router which has a content fileter on it which works. However I want to recommend a parental content filter for our parents - the ages in the school are from 3 - 18. The Drayteck router is not really an option because of the expense and complexity of setup. It would be best if there was a router that could handle this - so that a home with a network would only have to have it installed once - but I am open to all suggestions.

Thanks

Answer : Parental control for the internet

If being used in their homes K9 is free and very good
http://www1.k9webprotection.com/