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Proxy or Masquerade or what?

daemon@ATHENA.MIT.EDU (Kambiz Aghaiepour)
Mon Jun 3 09:44:39 1996

Date: 	Mon, 3 Jun 1996 03:59:02 -0700
To: linux-net@vger.rutgers.edu
Reply-To: kambiz@malibu.concord.ca.us
From: Kambiz Aghaiepour <kambiz@malibu.concord.ca.us>

I have a linux system connected to the internet via local ISP.  I have
been assigned only a single IP address and I would like to be able to
have my friends make PPP connections to my system and see the internet
from their own machines using my linux box as a gateway to the internet
(I have an ISDN connection).

I know I can make up the IP addresses for the PPP connection (Isn't
there a class C reserved for internal use written up in the RFCs?) but
how would the reply packets be routed to my PPP peer if the source
address is coming from an IP that is meant for internal use?  Do I need
to use proxy services, masquerading or what?  I'm really interested
primarily in two things, email and web browsing.  But I would like to
also be able to use telnet, and internet chess clients.  In other words
is there some generic way of allowing my PPP peer to utilize my ISDN
connection?

PC running Windows NT            malibu.Concord.CA.US
 (PPP/internal IP) <--> (PPP/internal IP)  (ISDN/199.108.4.208) <--> internet

Thanks for any pointers you can provide.

Kambiz

-- 
\o__O   o     Kambiz Aghaiepour   - |   kambiz@malibu.Concord.CA.US   o   o
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