Ok, firstly I have a Creative 8133U DSL Router (NAT Enabled). It has a firewall, but there is no way to disable that other than going around it port forwarding. So I looked around the Creative forums, and found what I already knew - I had to forward the ports. I couldn't make what Host IP I was supposed to enter however, so I just used the Router IP, Lan IP and Internet IP (Dynamic). I opened up port 2092 and 2093 both TCP/UDP on each IP.
Looking good. But no glory. No one can see the server over the Internet. So any ideas? NAT Enabled, DMZ Disabled... Although my knowledge on those is less than stellar.
I usually end up opening up the DMZ, as I run so many services, my LinkSys router does not have enough slots to enter all the ports I need. Not as safe, but, I do what I gotta do to get the services to run.
iirc, you need both TCP and UDP for D3 to work. From what I see in that pic, you'll have to create two entries for each port which are otherwise identical.
Found the problem, NAT was causing problems, so I enabled DMZ for this PC and it works. Obviously, a bit riskier, but whatever. Good old software can take care of the generic intrusions.