From owner-freebsd-net@FreeBSD.ORG Wed Jan 24 13:28:28 2007 Return-Path: X-Original-To: freebsd-net@freebsd.org Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id C69AC16A402 for ; Wed, 24 Jan 2007 13:28:28 +0000 (UTC) (envelope-from lists@swaggi.com) Received: from rusty.swaggy.net (rusty.swaggy.net [66.103.13.18]) by mx1.freebsd.org (Postfix) with ESMTP id 7A3AE13C4D1 for ; Wed, 24 Jan 2007 13:28:28 +0000 (UTC) (envelope-from lists@swaggi.com) Received: from [127.0.0.1] (helo=swaggi.com) by rusty.swaggy.net with esmtp (Exim 4.63 (FreeBSD)) (envelope-from ) id 1H9hMy-0004Mz-60 for freebsd-net@freebsd.org; Wed, 24 Jan 2007 07:36:53 -0500 From: "Yuri Lukin" To: freebsd-net@freebsd.org Date: Wed, 24 Jan 2007 07:36:51 -0500 Message-Id: <20070124122525.M93545@swaggi.com> In-Reply-To: <20070124020027.GC90167@k7.mavetju> References: <1729.65.117.48.154.1169568902.squirrel@admintool.trueband.net> <20070124020027.GC90167@k7.mavetju> X-Mailer: swaggi.com MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Subject: Re: VLANs and DHCP 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: Wed, 24 Jan 2007 13:28:28 -0000 On Tue, Jan 23, 2007 at 04:15:02PM -0000, jhall@vandaliamo.net wrote: > I currently administer a system which has two DHCP servers on two > different VLANs. Unfortunately, the two servers are not playing together > well and some comptuers are receiving IP addresses on the wrong network. > So, with our phone vendor's blessing, I am trying to move all of the DHCP > services to the FreeBSD server. > > The computers on the network are supposed to receive an IP address on the > default vlan and the phones are supposed to receive an IP address on their > vlan. > > Essentially what happens when a phone is booted, the phone receives an IP > address on the default VLAN, releases that address and then requests an IP > address on the appropriate VLAN. Just a thought but if your switch properly tags the packets from the voice and data Vlans, the broadcasts from the IP Phones should not cross over to the data Vlan. We have dozens of customers setup this way and they are not having any problems. Not sure what type of switches you are using but I would check your switchport configuration (assuming managed switch). Yuri