I have a w2003 server that need remote access. So my thinking is that i have double nat.... what do i have to do...
Because it's double NAT, you need to forward your required ports in both NAT routers. First, forward the required port from the Internet Router to the WinGate computer, then forward the same port from WinGate to the client computer on your local network.
Since we don't know what type of internet router you have, we can't help you there, but here's a quick guide on forwarding ports in WinGate.
1. GateKeeper -> System -> Extended Networking -> Port Security
2. Click Add
3. Enter a description for the port forward
4. Select Internet computers to the WinGate PC
5. Select TCP and/or UDP as required
6. Enter the port range as required
7. Select 'Redirect Packet to IP address'
8. Enter the IP address of the computer that you want to forward the packet to
9. Since these packets are from the internet, select 'Don't translate source IP'
10. Click OK, then click Apply to finalise the change