I have recently loaded a Windows 2003 Enterprise Server box. It’s a fresh install with nothing else on it. Windows Firewall is turned off and I have no other firewall software on the box. I have two network cards installed, one with a 1.1 subnet address and the other with a 2.1 subnet address. These are both connected to two different routers, the 1.1 is connected to the outside through a DSL box and the 2.1 is connected to the 1.1 router through the WAN port.
I have installed a DHCP server and have a scope for the 1.1, I do not have a scope for the 2.1 as everything connecting to the 2.1 router has a static IP address. I have also installed a DNS server on the box as well as IIS.
Here’s my problem. I have port forwarding on the 1.1 box that points anything coming through the 80 port to the server. This works inside the network, but doesn’t work outside the network. Anyone from the outside trying to access our webpage is getting a “Page cannot be displayed” error. I’ve checked authorizations and everything looks fine there. I decided to try port forwarding on some other applications and get the same thing, it works within the network, but not outside the network. It’s like anything from the outside is getting blocked.
My first thought was Windows Firewall, so I disabled it and I’m still getting the same problem. I even tried re-enabling the firewall and making a rule that allows all traffic from port 80 as well as the other ports I was testing, still no go. I’m at a loss here of what to do. This isn’t the first time I’ve installed a web server on 2003, but this is the first time I’ve had this problem.
I’ve even gone so far as to format and reinstall 2003, still the same problem. The only thing different this time around is the addition of the second network card on a different subnet. I can’t think of how that would affect things though. I’m not a network or server guru by any means, so it may be something simple I’m missing, but I’ve set up web servers on 2000 and 2003 boxes before without any issues so I don’t think I’m doing anything wrong as far as the configuration is concerned. I don’t know, but hopefully someone here can help me out 🙂
Thanks,
Ken