From owner-freebsd-isp@FreeBSD.ORG Wed Jan 21 14:57:14 2004 Return-Path: Delivered-To: freebsd-isp@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id CF1F316A4CE for ; Wed, 21 Jan 2004 14:57:14 -0800 (PST) Received: from mail.telecoms.bg (ns.telecoms.bg [217.79.79.2]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5C46043D1F for ; Wed, 21 Jan 2004 14:57:12 -0800 (PST) (envelope-from moskov@telecoms.bg) Received: from k.telecoms.bg (k.telecoms.bg [217.79.66.142]) by mail.telecoms.bg (8.12.10/8.12.8) with ESMTP id i0LMv7l2014374; Thu, 22 Jan 2004 00:57:07 +0200 Received: from k (localhost [127.0.0.1]) by k.telecoms.bg (Postfix) with SMTP id 88957678F; Thu, 22 Jan 2004 00:58:03 +0200 (EET) Received: from 217.79.66.142 (SquirrelMail authenticated user moskov) by k with HTTP; Thu, 22 Jan 2004 00:58:03 +0200 (EET) Message-ID: <52092.217.79.66.142.1074725883.squirrel@k> In-Reply-To: <20040121115246.GA17996@cell.sick.ru> References: <3446.217.79.79.166.1074685509.squirrel@k> <20040121115246.GA17996@cell.sick.ru> Date: Thu, 22 Jan 2004 00:58:03 +0200 (EET) From: "Georgi Moskov" To: "Gleb Smirnoff" User-Agent: SquirrelMail/1.4.2 MIME-Version: 1.0 Content-Type: text/plain;charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Priority: 3 Importance: Normal cc: freebsd-isp@freebsd.org Subject: Re: BGP solution ? X-BeenThere: freebsd-isp@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Internet Services Providers List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 Jan 2004 22:57:14 -0000 > On Wed, Jan 21, 2004 at 01:45:09PM +0200, Georgi Moskov wrote: > G> I have tha following setup: > G> > G> --- B --- > G> / \ > G> / \ 6802:100 > G> 194.141.24.0/24 -- A C ----------- F > G> \ / 6802:200 > G> \ / > G> --- D --- > G> > G> Router F advertises to router C prefixes marked widh community 6802:100 > G> and prefixes marked with 6802:200. Is it possible to configure the > routers > G> in such a way, that traffic to/from 194.141.24.0/24 and prefixes marked > G> widh 6802:100 to pass through router B and traffic to/from 6802:200 to > G> pass through router D ? (the ruters use zebra) > > To configure incoming traffic to 194.141.24.0/24, you should create > route maps on C, like this: > > match community 6802:(1,2)00 > set as path prepend XXXX XXXX > > and attach this route maps to corresponding neighbor (don't forget "out" > keyword). > > To deal with outgoing traffic, you should create route maps on A, like > this: > > match commnity 6802:(1,2)00 > set localpref 110 > > and attach them to corresponding neighbors, with "in" keyword. > > -- > Totus tuus, Glebius. > GLEBIUS-RIPN GLEB-RIPE > > Correct me if I'm wrong but in my understanding router C can have only 1 active path for 194.141.24.0/24 (the best one) and if so, then it will route traffic to it just through one of the interfaces. Respectfully, Georgi Moskov