Server Differences?

[nuceman]

Just wondering but whats the difference of the way EQEmu server hosting between most first person shooter hosting?
They seem mostly the same yet apparently since I can't log into my own server with EQEmu there must be some kind of big difference.

Since I don't know much about the networking thingies I'm
going to have to speculate a little, but the the point of this thread
is to find out the difference so hopefully someone with knowledge of both EQEmu and FPS servers replies. =)

EQEmu:
Main part of the server is the world server which connects to the login server ran by the guys at EQEmu... (at least that's what I heard) Which is where the server is now visible to the public.
Then you add-on the zone servers. Default working on ports 9000, 7995-8000, 5999. I can't connect to my own server, I'm using a router and have used all the advice given by lurker and shawn and they could not find anything wrong with all the files.
(INI's, zone.bat, hosts, router config)

When I tried to connect to my server from EQ, the world server wasn't even registering an attempt to connect and I got a 1017.

FPS:
Main server is the either the dedicated or listen server. Which is connects to the login server which is the WON server or the Gamespy servers which is where the server is visible to the public.
Ports depend on the game but usually require only 1 port to host.
All I need to do for get one of these servers to run is open up the port on my router. I can join my dedicated servers also, which is what EQEmu is similar to.

Can anyone explain the major difference?
Also, just wondering, if these 2 kinds of server systems are different, would you have to re-write the whole code for EQEmu
to make it more like a FPS server? Cause if EQEmu server system was more like FPS servers, I just feel it would be easier, or is the current system of EQEmu required to be the way it is to work?