> With regard to the firewall John, it seems very clear that I should add one. > I believe that the router has a built in one but I'm not at all clear how to > configure it. Does it make any difference that we are being provided with a > filtered feed from our ISP? Do you completely trust them? IMHO, a firewall is necessary. > Our set up is very simple in a small school and we have no remote clients. An educational institute, a firewall is a must. John Tolmachoff MCSE CSSA Engineer/Consultant eServices For You www.eservicesforyou.com