From owner-freebsd-ipfw@FreeBSD.ORG Fri Apr 30 19:18:07 2010 Return-Path: Delivered-To: freebsd-ipfw@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id CDE5D1065673 for ; Fri, 30 Apr 2010 19:18:07 +0000 (UTC) (envelope-from roberthuff@rcn.com) Received: from smtp02.lnh.mail.rcn.net (smtp02.lnh.mail.rcn.net [207.172.157.102]) by mx1.freebsd.org (Postfix) with ESMTP id 907D18FC20 for ; Fri, 30 Apr 2010 19:18:07 +0000 (UTC) Received: from mr02.lnh.mail.rcn.net ([207.172.157.22]) by smtp02.lnh.mail.rcn.net with ESMTP; 30 Apr 2010 14:49:16 -0400 Received: from smtp01.lnh.mail.rcn.net (smtp01.lnh.mail.rcn.net [207.172.4.11]) by mr02.lnh.mail.rcn.net (MOS 3.10.8-GA) with ESMTP id QRL35635; Fri, 30 Apr 2010 14:49:15 -0400 (EDT) Received: from 209-6-91-204.c3-0.smr-ubr1.sbo-smr.ma.cable.rcn.com (HELO jerusalem.litteratus.org.litteratus.org) ([209.6.91.204]) by smtp01.lnh.mail.rcn.net with ESMTP; 30 Apr 2010 14:49:14 -0400 From: Robert Huff MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <19419.9769.1823.944619@jerusalem.litteratus.org> Date: Fri, 30 Apr 2010 14:49:13 -0400 To: Dmitriy Demidov In-Reply-To: <201004301923.13306.dima_bsd@inbox.lv> References: <19418.39843.266203.180601@jerusalem.litteratus.org> <201004301923.13306.dima_bsd@inbox.lv> X-Mailer: VM 7.17 under 21.5 (beta28) "fuki" XEmacs Lucid X-Junkmail-Whitelist: YES (by domain whitelist at mr02.lnh.mail.rcn.net) Cc: freebsd-ipfw@freebsd.org, Robert Huff Subject: Re: help wanted with NAT under ipfw X-BeenThere: freebsd-ipfw@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: IPFW Technical Discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 30 Apr 2010 19:18:07 -0000 Dmitriy Demidov writes: > > I have been trying to get NAT working under ipfw on: > > What am I doing wrong? > > This could happen because of old annoying bug (or "feature"?) that seats > somethere in the middle of libalias and em driver: > http://www.freebsd.org/cgi/query-pr.cgi?pr=143939&cat=kern > > Try to turn off RXCSUM,TXCSUM on em interface: > > ifconfig em0 -rxcsum -txcsum -tso YES! YES! YES! YES! YES! YES! YES! [insert anime of burly bearded guy jumping up and down in elation] [Goes off to try NAT.] YES! YES! YES! YES! YES! YES! YES! Thank you, and the person who diagnosed this. It has been hanging for over a year. Robert Huff