From owner-freebsd-net@FreeBSD.ORG Fri Jan 16 20:17:44 2004 Return-Path: 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 0C3B416A4CE for ; Fri, 16 Jan 2004 20:17:44 -0800 (PST) Received: from ftp.bjpu.edu.cn (ftp.bjpu.edu.cn [202.112.78.5]) by mx1.FreeBSD.org (Postfix) with ESMTP id DB36243D3F for ; Fri, 16 Jan 2004 20:17:42 -0800 (PST) (envelope-from delphij@frontfree.net) Received: by ftp.bjpu.edu.cn (Postfix, from userid 426) id 1E44652D4; Sat, 17 Jan 2004 12:17:42 +0800 (CST) Received: from beastie.frontfree.net (beastie.frontfree.net [218.107.145.7]) by ftp.bjpu.edu.cn (Postfix) with ESMTP id 0240D5299 for ; Sat, 17 Jan 2004 12:17:41 +0800 (CST) Received: by beastie.frontfree.net (Postfix, from userid 426) id AD2F311675; Sat, 17 Jan 2004 12:17:40 +0800 (CST) Received: from phantasm205 (unknown [61.49.185.93]) (using TLSv1 with cipher RC4-MD5 (128/128 bits)) (No client certificate requested) by beastie.frontfree.net (Postfix) with ESMTP id B448E11421 for ; Sat, 17 Jan 2004 12:17:39 +0800 (CST) Message-ID: <042601c3dcb0$de90c410$0401a8c0@phantasm205> From: "Xin LI" To: Date: Sat, 17 Jan 2004 12:17:48 +0800 Organization: Phantasm Studio MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.3790.0 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.3790.0 Subject: Newbie question: is net.inet.ip.fastforwarding intended for routers only? X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 17 Jan 2004 04:17:44 -0000 As title. To my imagination (I have taken a sight on the kernel networking code), the fastforwarding path is intended for routers only, so if I want some functionalities, for example, NAT, the fastforwarding is not useful, and my experiment shows that if I enable it, ipfilter's NAT will be broken. Am I right? Thanks in advance! Xin LI