Its not hard but you in for a bit of reading start here. 


http://www.linuxdocs.org/HOWTOs/DSL-HOWTO/index.html
http://www.linuxdocs.org/HOWTOs/Masquerading-Simple-HOWTO/index.html
http://www.linuxdocs.org/HOWTOs/Firewall-HOWTO.html

You'll need samba if you're going to be sharing a printer or will be
creating shares between your Linux and M$ box. You pretty much configure
eth1 the same as you did eth0 except you'll be using an internal IP
address (I use the 192.168.x.x format). I've got a simular set up
running so if you have anymore question please feel free to email me. 

Carl Parrish



On Thu, 2002-05-02 at 21:08, mikeb455 wrote:
> Hello everyone, this is my first submission. I would like to set up a home network for the purpose of sharing my DSL connection. I was ready to buy a router when I heard that that I could accomplih this with linux. Only two computers right now but I will be adding a laptop next month. My Linux box is running RH 7.2 with the network installation and two NIC cards installed. My windows machine has a card installed. I have a cable modem and network cables. I have already established a internet connection with eth0. How do I configure eth1? What else do i need to know? Will this require installing Samba? 
> Your dealing with a newbie here guys, I hope this is not too lame of a question. I appreciate any help, Thanks