Having recently installed Win2K Server as our DHCP and RAS server for our LAN of 6 PCs, I was wondering about turning on TCP/IP filtering as a poor man's way of creating a firewall. Question: What TCP/IP filtering parameters should I be using? We wish to access HTTP, HTTPS, FTP, Ping, TraceRT, and Remote Terminal Services. Would it make more sense to purchase a third party software firewall, such as ZoneAlarm or BlackIce? Any problem with running such on the server?