From owner-freebsd-hackers@FreeBSD.ORG Mon Oct 4 17:39:44 2004 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 1866F16A4CE for ; Mon, 4 Oct 2004 17:39:44 +0000 (GMT) Received: from mta2.rdslink.ro (emta2.rdslink.ro [193.231.236.63]) by mx1.FreeBSD.org (Postfix) with ESMTP id 84B8643D2D for ; Mon, 4 Oct 2004 17:39:42 +0000 (GMT) (envelope-from dr.clau@rdslink.ro) Received: (qmail 28101 invoked from network); 4 Oct 2004 17:34:06 -0000 Received: from unknown (HELO mail.rdslink.ro) (193.231.236.20) by emta2.rdslink.ro with SMTP; 4 Oct 2004 17:34:06 -0000 Received: (qmail 5285 invoked from network); 4 Oct 2004 17:39:20 -0000 Received: from unknown (HELO ?82.79.29.15?) (82.79.29.15) by mail.rdslink.ro with SMTP; 4 Oct 2004 17:39:20 -0000 Message-ID: <41618AC7.1040808@rdslink.ro> Date: Mon, 04 Oct 2004 20:39:19 +0300 From: Claudiu Dragalina-Paraipan User-Agent: Mozilla Thunderbird 0.7.3 (X11/20041001) X-Accept-Language: en-us, en MIME-Version: 1.0 To: freebsd-hackers@freebsd.org Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Subject: 2 inet connections 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: Mon, 04 Oct 2004 17:39:44 -0000 Hi, I have this situation: 2 inet connection at 2 different ISP, one with 2Mbps and one with 128kbps; and a big NATed network behind it, and a small group of real addresses. I want to do this: use the first connection as "primary" connection, and if this fails, go to the second connection, as a backup. The problem is that none of the ISP will help me in any way, so I have to find a solution by my own. I am trying to avoid the making of a software that watches the connections and "declare" a line dead when no TCP connection can be made, thus switching to the secondary/backup line. I realize that there is no way of using the group of real addresses on the backup line, since they are not routed, but this is not of such importance. I need only to provide Internet connection for the NATed network. So... can someone provide me with some good practical advice for this situation ? NOTE: I want to use FreeBSD for this, so FreeBSD specific advices are welcome. In fact I don't even think of other solution. I realize that this is not a very common situation, and I hope I have explained it sufficiently clear. Thank you very much. Best regards, -- Claudiu Dragalina-Paraipan e-mail: dr.clau@rdslink.ro