From owner-freebsd-net@FreeBSD.ORG Fri Apr 28 23:17:12 2006 Return-Path: X-Original-To: freebsd-net@freebsd.org Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 2474816A404 for ; Fri, 28 Apr 2006 23:17:12 +0000 (UTC) (envelope-from julian@elischer.org) Received: from a50.ironport.com (a50.ironport.com [63.251.108.112]) by mx1.FreeBSD.org (Postfix) with ESMTP id DB3D143D46 for ; Fri, 28 Apr 2006 23:17:11 +0000 (GMT) (envelope-from julian@elischer.org) Received: from unknown (HELO [10.251.19.131]) ([10.251.19.131]) by a50.ironport.com with ESMTP; 28 Apr 2006 16:17:12 -0700 Message-ID: <4452A272.1010707@elischer.org> Date: Fri, 28 Apr 2006 16:17:06 -0700 From: Julian Elischer User-Agent: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.7.13) Gecko/20060414 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Brian Candler References: <445109F1.6050300@elischer.org> <20060428190950.GB17435@uk.tiscali.com> In-Reply-To: <20060428190950.GB17435@uk.tiscali.com> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Cc: "'freebsd-net@freebsd.org'" , JOBY THAMPAN Subject: Re: DHCP Over PPPoE X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 28 Apr 2006 23:17:12 -0000 Brian Candler wrote: >On Thu, Apr 27, 2006 at 11:14:09AM -0700, Julian Elischer wrote: > > >>A few things.. >> >>1/ thisn is a FreeBSD list so we are not very familiar with linux. >>2/ PPPOE uses PPP which is a point-to-point protocol and does not support >> broadcast. >>3/ DHCP is a broadcast protocol and does not support point-to-point >> networks. >>4/ PPP (oE) has its own IP allocation mechanism. >> >> > >But note that he is using DHCP relaying to a remote DHCP server. This >original DHCP broadcast is picked up and turned into a unicast message for >relaying to the DHCP server. This works quite happily over PPP or indeed any >intervening IP network and any number of hops. > > only if he has a way to relay it (e.g. the isc dhcp relay daemon)