Hello, my name is Christoph and I attend a business school. Our school administrator formed a working group for network and computer related problems. Our first task is to review the existing security system and to improve it or create a new one. I worked on a new network design for the school network, and I first created a draft. The First version of the draft can be downloaded from http://www.festlinfo.at/schoolnetwork.jpg. Would somebody be so kind and make comments on it or critisize it because I want to improve it. I know a little bit about computer security and I want to learn more. I excuse for being off topic, but I wanted some experts to review the draft. Have a nice day, Christoph Pernsteiner -- Black holes are where god divided by zero.