From owner-freebsd-ipfw@FreeBSD.ORG Sun Oct 26 02:20:19 2003 Return-Path: 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 4EBB016A4B3 for ; Sun, 26 Oct 2003 02:20:19 -0800 (PST) Received: from mout2.freenet.de (mout2.freenet.de [194.97.50.155]) by mx1.FreeBSD.org (Postfix) with ESMTP id B961243F85 for ; Sun, 26 Oct 2003 02:20:17 -0800 (PST) (envelope-from ino-qc@spotteswoode.de.eu.org) Received: from [194.97.50.135] (helo=mx2.freenet.de) by mout2.freenet.de with asmtp (Exim 4.24) id 1ADi0O-0007fY-DM for freebsd-ipfw@FreeBSD.ORG; Sun, 26 Oct 2003 11:20:16 +0100 Received: from p3e9baad4.dip.t-dialin.net ([62.155.170.212] helo=spotteswoode.dnsalias.org) by mx2.freenet.de with asmtp (ID inode@freenet.de) (Exim 4.24 #17) id 1ADi0O-0006ZD-0K for freebsd-ipfw@FreeBSD.ORG; Sun, 26 Oct 2003 11:20:16 +0100 Received: (qmail 3160 invoked by uid 0); 26 Oct 2003 10:20:37 -0000 Date: 26 Oct 2003 11:20:14 +0100 Message-ID: From: "Clemens Fischer" To: "Michael Sierchio" In-Reply-To: <3F833434.5090506@tenebras.com> (Michael Sierchio's message of "Tue, 07 Oct 2003 14:46:28 -0700") References: <3F833434.5090506@tenebras.com> User-Agent: Gnus/5.1003 (Gnus v5.10.3) Emacs/21.3 (berkeley-unix) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii cc: freebsd-ipfw@FreeBSD.ORG Subject: Re: Strange leakage of private source addresses w/ipfw and natd X-BeenThere: freebsd-ipfw@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: IPFW Technical Discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 26 Oct 2003 10:20:19 -0000 * 2003-10-07 Michael Sierchio: > This doesn't have a (user-) noticeable impact on traffic, but > installing a silent network recorder outside my firewall shows that > some RFC 1918 addrs are getting through. don't worry, just block them on the external interface. > I'll post details when I've got them, but I'm wondering if anyone > else has seen this? it happens, and with my installation they are coming from the outside. clemens