From owner-freebsd-net Thu Jun 28 13:33:14 2001 Delivered-To: freebsd-net@freebsd.org Received: from flood.ping.uio.no (flood.ping.uio.no [129.240.78.31]) by hub.freebsd.org (Postfix) with ESMTP id 14E3D37B406; Thu, 28 Jun 2001 13:33:08 -0700 (PDT) (envelope-from des@ofug.org) Received: (from des@localhost) by flood.ping.uio.no (8.9.3/8.9.3) id WAA02680; Thu, 28 Jun 2001 22:32:50 +0200 (CEST) (envelope-from des@ofug.org) X-URL: http://www.ofug.org/~des/ X-Disclaimer: The views expressed in this message do not necessarily coincide with those of any organisation or company with which I am or have been affiliated. To: Wes Peters Cc: Ruslan Ermilov , Deepak Jain , net@FreeBSD.ORG, hackers@FreeBSD.ORG Subject: Re: fastforwarding? References: <20010626093545.D49992@sunbay.com> <3B3AB4F8.184A2EFE@softweyr.com> From: Dag-Erling Smorgrav Date: 28 Jun 2001 22:32:50 +0200 In-Reply-To: <3B3AB4F8.184A2EFE@softweyr.com> Message-ID: Lines: 14 User-Agent: Gnus/5.0808 (Gnus v5.8.8) Emacs/20.7 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org Wes Peters writes: > The description there isn't very forthcoming. fastforwarding caches > the results of a route lookup for destination addresses that are not > on the local machine, and uses the cached route to short-circuit the > normal (relatively slow) route lookup process. The packet flows > directly from one layer2 input routine directly to the opposing > layer2 output routine without traversing the IP layer. And more importantly, without traversing ipfw or ipfilter. In other words, don't use this on a firewall. DES -- Dag-Erling Smorgrav - des@ofug.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message