Hotrod Your Linksys WAP with Linux (Part 3)
Now that we have ripped out the stock guts out of our Linksys WRT54G and replaced them with a miniature, but mighty, Linux operating system, it's time to configure it to do some actual work. (Part 1 and part 2 cover installation and setting up secure administration of your chopped, dropped little blue box.)
Sharing a Broadband Connection
Remember, none of these settings are committed to NVRAM (define) until you enter the nvram commit command. As long as you do not write to NVRAM, you can safely test new commands, and reboot to a known good configuration if something goes wrong. When everything works right then you can commit.