Hello all! I have been given the task of setting up a multi-level network security plan for a non-profit organization. I have a clue of what to do, but I could always use the intelligence of the posters here to make things even better. We currently have three computers attached to the network permanently with a few laptops (mine and the boss's) that come around fairly frequently; we will soon be adding an education lab. Here is what the boss has asked for: Three levels of security Level 1 - Can access the internet freely (hardware firewalled), but cannot see any other computer or printer on the network. Self-contained workstation. Level 2 - Can access the internet and see other Level 2 computers within its workgroup. Password protected file sharing is enabled. Level 3 - Total lockdown; internet access only when I allow it, and then only for security updates. Can only print to an attached printer. Level 1 and Level 3 are going to be fairly easy; it's Level 2 that has me somewhat stumped. There will be a workgroup for the Manager, the Director of Programs, and me. Later, there will be another workgroup for the education lab. The ultimate worry for me comes with the wireless router. We're currently trying to do this with just one four port D-Link router, with only two computers connecting via Cat5. Ultimately I want to see as little wireless as possible for the workstations. Any thoughts on directions I should go in?