From owner-freebsd-net@FreeBSD.ORG Thu Nov 30 21:31:31 2006 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 2D91B16A407; Thu, 30 Nov 2006 21:31:31 +0000 (UTC) (envelope-from Kirk.Davis@epsb.ca) Received: from Exchange22.EDU.epsb.ca (exchange22.epsb.ca [198.161.119.187]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9DAC243CA5; Thu, 30 Nov 2006 21:29:28 +0000 (GMT) (envelope-from Kirk.Davis@epsb.ca) Received: from Exchange21.EDU.epsb.ca ([10.0.5.118]) by Exchange22.EDU.epsb.ca with Microsoft SMTPSVC(6.0.3790.1830); Thu, 30 Nov 2006 14:29:37 -0700 X-MimeOLE: Produced By Microsoft Exchange V6.5 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable Date: Thu, 30 Nov 2006 14:29:37 -0700 Message-ID: <04C71268DFDAA8499EC1A248A44B6A2B0855B20A@Exchange21.EDU.epsb.ca> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: What does the net.inet.ip.fastforwarding sysctl do? Thread-Index: AccUxgwOba4HQVtHSHSdZntdcHkfAAAAFgfw From: "Kirk Davis" To: "Ruslan Ermilov" X-OriginalArrivalTime: 30 Nov 2006 21:29:37.0867 (UTC) FILETIME=[A34581B0:01C714C6] Cc: freebsd-net@freebsd.org Subject: RE: What does the net.inet.ip.fastforwarding sysctl do? 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: Thu, 30 Nov 2006 21:31:31 -0000 > From: Ruslan Ermilov [mailto:ru@freebsd.org]=20 >=20 > On Thu, Nov 30, 2006 at 02:16:33PM -0700, Kirk Davis wrote: > > Hi, > > I have am setting up a router that needs to handle a lot of > > traffic. I am using a Dell 2950 that I have added Intel=20 > Gig cards into > > (em). This server will be running quagga (for BGP) and also use a > > couple of IPFW FWD rules to forward packets to another host. > >=20 > > In order to get the forwarding speed I need I have turned on the > > sysctl variable net.inet.ip.fastforwarding=3D1 What is the > > ramifications of this? Will it still work with routing=20 > software like > > quagga or allow IPFW to still forward packets? > >=20 > RTFM: man 4 inet Ahhh. OK Thanks. I did look for a man page but didn't take a look at the one for inet. A good explanation. Thanks, Kirk