From mboxrd@z Thu Jan  1 00:00:00 1970
From: presotto@plan9.bell-labs.com
To: 9fans@cse.psu.edu
Subject: Re: [9fans] /net/ip*
MIME-Version: 1.0
Content-Type: multipart/mixed;
	boundary="upas-efymlshnpxzjhwqbznglresegj"
Message-Id: <20010126002355.E916319A01@mail.cse.psu.edu>
Date: Thu, 25 Jan 2001 19:23:35 -0500
Topicbox-Message-UUID: 51fd2712-eac9-11e9-9e20-41e7f4b1d025

This is a multi-part message in MIME format.
--upas-efymlshnpxzjhwqbznglresegj
Content-Disposition: inline
Content-Type: text/plain; charset="US-ASCII"
Content-Transfer-Encoding: 7bit

The way to build a nat with plan 9 is to set up 2 ip stacks, open
a pkt interface on each one, and start a process that does
the translation by xfering packets from one to the other:

Look at ppp to see how to use a packet interface.

--upas-efymlshnpxzjhwqbznglresegj
Content-Type: message/rfc822
Content-Disposition: inline

Received: from plan9.cs.bell-labs.com ([135.104.9.2]) by plan9; Thu Jan 25 17:41:25 EST 2001
Received: from mail.cse.psu.edu ([130.203.4.6]) by plan9; Thu Jan 25 17:41:24 EST 2001
Received: from psuvax1.cse.psu.edu (psuvax1.cse.psu.edu [130.203.8.6])
	by mail.cse.psu.edu (CSE Mail Server) with ESMTP
	id 317BE19A0B; Thu, 25 Jan 2001 17:41:12 -0500 (EST)
Received: from mallorn.advancedsolutions.com (mallorn.advancedsolutions.com [216.3.74.86])
	by mail.cse.psu.edu (CSE Mail Server) with ESMTP id 891ED19A09
	for <9fans@cse.psu.edu>; Thu, 25 Jan 2001 17:40:16 -0500 (EST)
Received: (from lucho@localhost)
	by mallorn.advancedsolutions.com (8.9.3/8.9.3) id RAA07035
	for 9fans@cse.psu.edu; Thu, 25 Jan 2001 17:40:15 -0500
From: Latchesar Ionkov <lucho@gmx.net>
To: 9fans@cse.psu.edu
Message-ID: <20010125174015.A7009@gmx.net>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
User-Agent: Mutt/1.2i
Subject: [9fans] /net/ip*
Sender: 9fans-admin@cse.psu.edu
Errors-To: 9fans-admin@cse.psu.edu
X-BeenThere: 9fans@cse.psu.edu
X-Mailman-Version: 2.0.1
Precedence: bulk
Reply-To: 9fans@cse.psu.edu
List-Id: Fans of the OS Plan 9 from Bell Labs <9fans.cse.psu.edu>
List-Archive: <http://lists.cse.psu.edu/archives/9fans/>
Date: Thu, 25 Jan 2001 17:40:15 -0500

Hi,

I am trying to write a simple program that does network address translation in
Plan9. I am using /net/ipmux to get the packets I need to modify, but I
don't quite understand where to write these packets after I modify them :)

So far I see two choices: /net/ipmux/<nn>/data and /net/ipifc/<nn>/data. I
tried both of them but I don't see any packet going out or I see the packet
receiving from the filter again.

Any ideas what should I do?

Thanks,
	Lucho
--upas-efymlshnpxzjhwqbznglresegj--