Any of the Linux Router projects will work, but I would recommend OpenBSD as your Firewall/Router.  It is a very stable secure system that will run great on your P90 and it currently (2.9) comes with IP Filter which is an excelent firewall.  Doing a network install is fairly easy.  Chech out http://www.nomoa.com/bsd for a great site about setting up and configuring OpenBSD.

Then for your network, you plug your cable modem into your OpenBSD box and the second NIC on your OpenBSD box into a switch/hub.  Your P90 will do routing, firewall, NAT, DHCP and anything else you want it to.

Dusty

-----------------------------------------------------
> To all,
> 
>     Thanks for the help.  I am going to migrate to a final solution in two
> phases.  My end goal is a switching-router-firewall or router-firewall + hub
> that will connect to a cable modem.  I would like to share the cable modem
> connection between 4 computers: 2 linux boxes, 1 windows box and 1 iMac. The
> cheap solution is probably one router and a hub, but I am wondering if a router
> with more NICs might not be a cleaner solution in the long run. Any suggestions
> would be greatly appreciated.  (I have an old Pentium 90 in the garage that
> will probably become that router when I get the rest of the hardware/software I
> need.) 
> 
>     Currently, my VALinux box is connected to the cable modem and it works
> great. Right now, what I am interested in doing is connecting my Sparc20
> (running RHLinux 6.2 Sparc) to my VALinux box (running RH Linux 6.2.3) via a
> "rolled" ethernet cable. I want the Sparc box to be just an X terminal that
> can run apps from the server, which will be my VALinux box.  For starters this
> means forwarding X sessions to the Sparc20.  I am not sure if it also means I
> need to run NIS or whatever.  I may be able to work around that with secure
> shell or other tools on the internal side without having to host NIS or Samba on
> the firewall machine.  My VALinux box has 2 NICs, and all the rest of the boxes
> have 1 NIC. The VALinux box is currently pulling double duty as a firewall.  
> 
>     In the near future, I will build a router and then run everything
> through that box to the internet, that's the last phase.  So if anyone can
> help me get the Sparc 20 talking to the VALinux box for now and offer advice
> on whether I should put a lot of NICS in a router or just get a hub, I'd
> appreciate it.   
> 
> 
> Thanks again,
> Ben 
> 
>        
> 
> On Tue, 03 Jul 2001, you wrote:
> > How do you want them to talk? File Sharing? Web Serving? Internet
> > sharing?
> > 
> > What is your network setup? Do you have a hub, or are the computers
> > connected to each other directly?
> > 
> > Answer these questions, and I'll get you some answers.
> > 
> > Deven Phillips, CISSP
> > Network Architect
> > Viata Online, Inc.
> > 
> > Ben Beeson wrote:
> > > 
> > > Aloha,
> > > 
> > >         I'm trying to set up a small LAN at home -- two linux boxes...
> > > Can anyone help me get them to talk?
> > > 
> > > Thanks in advance,
> > > 
> > > Ben
> > > 
> > > ---
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> > 
> > -- 
> > Sorry if the spelling sucks, but my laptop battery is runn....
> > 
> > ---
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> -- 
> 
> 
> 
> ---
> You are currently subscribed to luau as: dusty@sandust.com
> To unsubscribe send a blank email to $subst('Email.Unsub')

So I asked my accountant, do I get an agriculture 
exemption for my server farm?