route IP confusion!

[mxb]

I have an dedicated IP address that runs to a router, the router handles the asdl line pppoe (192.168.0.1) to a redhat 8 box on 192.168.0.3. What would be the main IP for the box (whm) and how do I set up the DNS, nameservers are handled by our provider. Do we need to be running a name server. We have the server running inside the network but outside connections time out.
If some one can give me some clear direction on this. ( I know it exposes my complete lack of knowlege on the subject we are running a school website)
Thanks.

[pingo]

Have you tried to ask your question here?

http://www.webhostingtalk.com/forumdisplay.php?s=&forumid=5

John