how to make a computer to function as a router

[Neil Joseph Schelly]

The way to do this is with IPTables, the linux firewall facilities, on Machine 
A.  If you're unfamiliar with how to configure that, I would suggest 
installing firestarter on the FC4 machine and that will have an option to use 
IPTales, Masquerading (NAT) to allow the second machine out into the world.
-N

On Monday 06 February 2006 09:50 am, Zhao Peng wrote:
> Hi, all linux experts:
>
> I have 2 computers (A & B)
>
> A:
> a desktop (running Fedora Core 4),
> has 2 ethernet cards. (When I installed Fedora Core 4 on A, I chose
> "server" among 4 installation types, and I chose DHCP for both ethernet
> cards.) One card is connected to a Motorala cable modem via a Cat5 cable.
> Another one is an extra one, not used now.
> (BTW, I'm using Adelphia rhigh speed internet)
>
> B:
> a laptop (running Windows XP professional)
>
> I heard that it's possible to make A a router, so that I connect B to A via
> a Cat5 cable (not interested in wireless), and then both A and B can get
> online at the same time
>
> My question is:
> How to re-configure those 2 ethernet cards and do other necessary
> modification?
>
> Any input/clue is greatly appreciated. Specific step-by-step instruction(if
> I'm lucky) is extremely welcome! :)
>
> Thank you in advance!
>
> Zhao