From owner-freebsd-ipfw@FreeBSD.ORG Sat Jun 4 18:14:57 2005 Return-Path: X-Original-To: freebsd-ipfw@freebsd.org Delivered-To: freebsd-ipfw@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id A58E416A420; Sat, 4 Jun 2005 18:14:57 +0000 (GMT) (envelope-from jmg@hydrogen.funkthat.com) Received: from hydrogen.funkthat.com (gate.funkthat.com [69.17.45.168]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2619D43D48; Sat, 4 Jun 2005 18:14:57 +0000 (GMT) (envelope-from jmg@hydrogen.funkthat.com) Received: from hydrogen.funkthat.com (localhost.funkthat.com [127.0.0.1]) by hydrogen.funkthat.com (8.13.3/8.13.3) with ESMTP id j54IEu9V000796; Sat, 4 Jun 2005 11:14:56 -0700 (PDT) (envelope-from jmg@hydrogen.funkthat.com) Received: (from jmg@localhost) by hydrogen.funkthat.com (8.13.3/8.13.3/Submit) id j54IEt58000795; Sat, 4 Jun 2005 11:14:55 -0700 (PDT) (envelope-from jmg) Date: Sat, 4 Jun 2005 11:14:55 -0700 From: John-Mark Gurney To: sferreira@comcast.net Message-ID: <20050604181455.GA730@funkthat.com> Mail-Followup-To: sferreira@comcast.net, freebsd-ipfw@freebsd.org, freebsd-net@freebsd.org References: <060320052044.5672.42A0C125000B8BF30000162822007511500E9D070A9D9D0A009C@comcast.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <060320052044.5672.42A0C125000B8BF30000162822007511500E9D070A9D9D0A009C@comcast.net> User-Agent: Mutt/1.4.2.1i X-Operating-System: FreeBSD 5.4-RELEASE i386 X-PGP-Fingerprint: B7 EC EF F8 AE ED A7 31 96 7A 22 B3 D8 56 36 F4 X-Files: The truth is out there X-URL: http://resnet.uoregon.edu/~gurney_j/ X-Resume: http://resnet.uoregon.edu/~gurney_j/resume.html Cc: freebsd-ipfw@freebsd.org, freebsd-net@freebsd.org Subject: Re: FREEBSD between two trunks X-BeenThere: freebsd-ipfw@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: John-Mark Gurney List-Id: IPFW Technical Discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 04 Jun 2005 18:14:57 -0000 sferreira@comcast.net wrote this message on Fri, Jun 03, 2005 at 20:44 +0000: > I'm trying to setup DUMMYNET to emulate long delays, such as those encountered in satellite links. The problem is that I have to place my freebsd host between two trunks passing vlans (2,3,4,5,6). > > So the setup is: > > cisco swictch trunks vlan 2,3,4,5,6 <-> freebsd <--> cisco switch trunks vlan 2,3,4,5,6 > > > All the documents I could find related to this subject matter has the freebsd as an endpoint and not connecting two trunks. Also the freebsd has to be an invisible hop on the network, so it can not route this traffic. I had setup my freebsd in bridge mode but I could not get this setup to work. You may need to increase your mtu to allow the full sized packets to pass through... or you could setup a vlan w/ and id that isn't used and let that adjust the mtu for you.. -- John-Mark Gurney Voice: +1 415 225 5579 "All that I will do, has been done, All that I have, has not."