Is there anyone out there that is familiar with these units? I used to use them about 5 years ago. I came across one and want to set it up at a private school to help clean up the internet access. ON windows boxes I know to use the ii software. What do I need to connect linux and mac boxes to the 400? I searched the net but cant find much documentation on it. I have version 7.20 software and firmware on it. any help out there? thanks Bill