The NAT built into Linux is called IP Masquerading and is fairly   
advanced.  Check out the IP Masquerading HOWTO at:   
http://sunsite.unc.edu/LDP/HOWTO/ (downloadabel versions at:   
ftp://sunsite.unc.edu/pub/Linux/docs/HOWTO/ ).  Basically, you make sure   
that IP Masq. is running (in most Linux distros, it's pre-built into the   
kernel).  Make sure that IPv4 forwarding is turned on.  Don't forget to   
set up your firewalling rules (kernel >= 2.2+ uses ipchains and <= 2.0   
uses ipfwadm but ipchains has a "translator" script for ipfwadm commands   
if those are what you're familar with or all you can find, etc.)  You'll   
have to set you Windows boxes to use the private IP of your Linux box as   
it's gateway, though you typically still want your ISP's DNS referenced   
in your Windows boxes.  Anyway, all this is covered in detail in the   
HOWTO.

When you can surf the 'net from the Windows boxes through your Linux   
gateway by doing a manual dialup on the Linux box, then install diald (I   
still am using .16 of all things and it -still- works great!).

Any other questions, just shout!

peace favor your sword

 -----Original Message-----
From: Phil Martinez
Sent: Monday, October 25, 1999 8:37 AM
To: LKLawson; "Diald Mailinglist"
Subject: Need EXTREME help.

Hello,

Please excuse the ignorance, but after failing to get the NAT and demand
dialing built into Windows 2000 to work, I have turned to Linux.

I have a 5 computer LAN, one box being SUSE Linux, 6.2.  I have ppp,   
slip,
diald, and ipmasq installed.  I haven't installed a custom kernel, but   
have
been told the stock has everything I need.  The box is up and running, I   
can
run wvdial and get connected to the internet no problem, but don't think
that this has any bearing on my wanting to use diald.

My problem is I don't really know where to start, I want to have my Linux
machine nat all of my addresses and dial my isp when another network   
machine
needs access to the internet.  I have looked at man pages and howtos but
don't really know the best order to do things.  Can some generous hearted
soul help me out?  Just some ordered steps to get me going would be   
GREATLY
appreciated.  The more in depth the better.

Thanks in advance.

Phil


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