Hi Guys - I was asked to build a Win2K3 server for a small office enviroment. This server has 2 NIC cards; I have one setup for the WAN side, which is connected straight to a Netopia DSL modem, and another for the LAN side. The problem is, during my install, the office didn't have any firewall available, and all my install's were through Windows Wizards; e.g. DNS, DHCP, DC, and VPN. The only protection the computer has is Windows NAT and basic Firewall. I need to add a firewall in between the server and the DSL modem (which is acting just like a simple switch with 5 public IP's) but I'm worried that if I change the WAN side IP, all my settings for VPN, DNS and DHCP will get screwed. What is the best thing for me to do? Can I setup a firewall (say a Cisco PIX) to have the External and Internal IP? If so, how can I do this? Thank you so very much for anyone that can help.
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