From owner-freebsd-questions@FreeBSD.ORG Thu Jun 14 19:45:09 2007 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id A242116A46F for ; Thu, 14 Jun 2007 19:45:09 +0000 (UTC) (envelope-from kdk@daleco.biz) Received: from ezekiel.daleco.biz (southernuniform.com [66.76.92.18]) by mx1.freebsd.org (Postfix) with ESMTP id 5955713C45D for ; Thu, 14 Jun 2007 19:45:09 +0000 (UTC) (envelope-from kdk@daleco.biz) Received: from archangel.daleco.biz ([69.27.149.254]) by ezekiel.daleco.biz (8.13.8/8.13.1) with ESMTP id l5EJj2PU001079; Thu, 14 Jun 2007 14:45:03 -0500 (CDT) (envelope-from kdk@daleco.biz) Message-ID: <46719AB8.4030800@daleco.biz> Date: Thu, 14 Jun 2007 14:44:56 -0500 From: Kevin Kinsey User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.8.1.2) Gecko/20070418 SeaMonkey/1.1.1 MIME-Version: 1.0 To: efinleywork@efinley.com References: <467191DB.2010709@daleco.biz> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-questions Subject: Re: (OT?) Anyone wanna address my ISP's issues? [CIDR/BGP question] X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 14 Jun 2007 19:45:09 -0000 Elliot Finley wrote: > On Thu, 14 Jun 2007 14:07:07 -0500, you wrote: > >> >> The DSL modem's outside (static) IP is n.n.n.70, the gw >> is n.n.n.69, and the mask is 255.255.255.252. From >> inside, I can ping .70, but not .69 (and, needless to say, >> nothing else, either). From the outside, it's the >> other way 'round. Traceroute (from outside) shows different >> endpoints for the two addresses (that is, the last hop >> before .69 is one router, and, when looking for .70, it's >> another router (but not the one that leads to .69)). >> >> If I did my CIDR homework correctly, the net is n.n.n.68/30. >> Using "BGPlay" (http://bgplay.routeviews.org/bgplay/), I get >> the message: "The selected data sources have no information on >> prefix n.n.n.68/30. Please check that this prefix is globally >> announced." >> >> My question: shouldn't it be 'announced', if the ISP intends >> to route me TCP/IP traffic? I apologize for my ignorance, >> but BGP isn't something I figured to need to know at this >> point in my life (although, it doesn't hurt to learn, usually).... > > anything smaller than a /24 will be filtered. The ISP would announce > the larger block that your /30 lives in. Thank you very much, Elliot; You wouldn't believe how hard it's been to get anyone at, err, "tech support", to even address the issue. It makes sense, I suppose, otherwise the global routing table would be much larger than it is (?) Anyone up for further questions? The .70 --> .69 route on the modem has a metric of "5", but with the .252 mask, shouldn't it be required to be one hop away? Guess I need to head back to "class", Kevin Kinsey