From owner-freebsd-hackers@FreeBSD.ORG Sun Oct 5 06:29:26 2003 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 41AA616A4B3 for ; Sun, 5 Oct 2003 06:29:26 -0700 (PDT) Received: from hannibal.servitor.co.uk (hannibal.servitor.co.uk [195.188.15.48]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1124143F75 for ; Sun, 5 Oct 2003 06:29:23 -0700 (PDT) (envelope-from paul@iconoplex.co.uk) Received: from hannibal.servitor.co.uk ([195.188.15.48] helo=iconoplex.co.uk) by hannibal.servitor.co.uk with esmtp (Exim 4.14) id 1A690K-000GpU-32; Sun, 05 Oct 2003 14:32:56 +0100 Message-ID: <3F801CA7.60201@iconoplex.co.uk> Date: Sun, 05 Oct 2003 14:29:11 +0100 From: Paul Robinson User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4) Gecko/20030624 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Leo Bicknell References: <20031004235400.GA20943@ussenterprise.ufp.org> In-Reply-To: <20031004235400.GA20943@ussenterprise.ufp.org> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit cc: freebsd-hackers@freebsd.org Subject: Re: Changing the NAT IP on demand? X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 05 Oct 2003 13:29:26 -0000 Leo Bicknell wrote: >Now, NAT would be required. What I want to do is write an external >application to decide the performance of ISP #1 and ISP#2, and >somehow tell NAT which outside address to use. > Depends on how much money you have, but had you considered getting your own address range and BGP peering with your ISPs? I'd consider talking to them about it. It'll take some time to setup, but it means your "switching" is done at the router, not at the NAT box, which is the wrong place to do it anyway. -- Paul Robinson