From owner-freebsd-stable@FreeBSD.ORG Mon Apr 14 20:26:54 2003 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 93B6737B401 for ; Mon, 14 Apr 2003 20:26:54 -0700 (PDT) Received: from dns1.vizion2000.net (dns1.vizion2000.net [64.58.171.82]) by mx1.FreeBSD.org (Postfix) with ESMTP id 0B56943FB1 for ; Mon, 14 Apr 2003 20:26:54 -0700 (PDT) (envelope-from vizion@ixpres.com) Received: from vizion (vizion.vizion2000.net [64.58.171.92]) by dns1.vizion2000.net (8.11.6/8.11.6) with SMTP id h3F3pCY01096 for ; Mon, 14 Apr 2003 20:51:12 -0700 (PDT) (envelope-from vizion@ixpres.com) Message-ID: <00e101c302fb$5f8b5700$15b55042@vizion2000.net> From: "vizion communication" To: "FreeBSD Stable" Date: Mon, 14 Apr 2003 20:01:55 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: NAT proxy concepts X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 15 Apr 2003 03:26:54 -0000 Hi Guys I have been taking a close look at some networking opportunities which are being frustrated by the limits which are imposed by NAT. In particular the constraints impose by the embargo on double NATing have an impact for a project I am working on. Has anyone ever seen anything which I would conceptually describe as a reverse NAT proxy? What I want to be able to do is to be able to create a heirarchical tier of networks each one of which communicates to the network above by using a modification of NAT enjoying the capability of identifying a subnet number and client. Does ayone know enough about this subject to point me in the right direction (which may be - forget about it there is no way it can be done..:-) David