[CLUE-Tech] Linux Router

[Sterling, Willard]

I am using a USB ricochet modem connected to my Linux box for my internet
connection this box also has an internal ethernet card.  I would like to
setup eth0 as a gateway routing packets to PPP0 ( the ricochet modem ) but
all documentation I have been able to find is for LRP.  I want to do this
with RH 9 since it is my primary desktop not extra hardware I have laying
around.  I am also running IP chains with the eth0 as a trusted device.  Any
suggestions or howto links?