I'm trying to learn how to make a Pserver, shortly spoken. So I got the files from

outdated, I know) and follwed JW988's serverguide. All went well, so I manage to download ageorappelz client, and connect to it from the same computer as I am runnning it on.
I changed my GameServer.opt->S io.ip_address:*** to my external IP, and portforwared port 1433 to the computer hosting the server. I ran GameServer.opt through RappelzCompresser and started the server.
So one of my friends downloaded the ageofrappelz client and tried to connect, but he got the "Cannot connect to login server"-error.
Any suggestions/solutions? Should I change the IP in authserver to my external to?
EDIT: Can I use DNS-names in GameServer and authserver?
Tanks in advance