I have never done this with dial up and you have covered all the basics. I am now looking in the books at NAT as a starting point.

What is routing eth0 traffic to the PPP interface on the server, they are separate entities? Open questions as I search

OK.... later in the day.... you have to set up an IP masquerading server. It's a way to NAT and all refereces I could find to PPP sharing point that direction. Interesting... as expected I don't think you have a machanism in place to translate the static ip of the client to the public IP assigned by your ISP. This should do it.

http://www.europe.redhat.com/documen...ade-HOWTO.php3