Now, everything's complete. You've converted your SEGA Dreamcast into a router with firewalling and virtual private networking. Congratulations.
Now, you might set up several firewalling rules using [Andreasson02] or set up some more programs. For example, I've compiled im-httpd_0.04 for having a simple web server or ez-ipupdate for getting a "static" FQDN for my changing IP addresses for using SSH or showing some web pages.
You'll find my initial ramdisk under
http://www.tu-bs.de/~y0018536/dc
as well as the newest version of this article.