I'm trying to set up a NAT server with win2k3 server and have a couple of questions. obviously i need two nic cards in there. one that connects to the isp and the other to the internal network. and i have that set up as well as the settings for nat but the problem i am having is that the server doesn't communicate with the internal lan on private ip addressing. cross over cable to the lan hub only 3 machines as a test and regular connection to cable modem. am i missing anything? any help would be great thanx.