From owner-freebsd-security@FreeBSD.ORG  Wed Jan 19 18:36:54 2005
Return-Path: <owner-freebsd-security@FreeBSD.ORG>
Delivered-To: freebsd-security@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 59CF716A4CE
	for <freebsd-security@freebsd.org>;
	Wed, 19 Jan 2005 18:36:54 +0000 (GMT)
Received: from marvin.muc.de (marvin.muc.de [193.149.48.2])
	by mx1.FreeBSD.org (Postfix) with SMTP id 485B843D49
	for <freebsd-security@freebsd.org>;
	Wed, 19 Jan 2005 18:36:53 +0000 (GMT)
	(envelope-from mod-submit@uni-berlin.de)
Received: (qmail 16653 invoked by alias); 19 Jan 2005 18:36:51 -0000
Delivered-To: mods-muc-lists-freebsd-security@moderators.muc.de
Received: (qmail 16646 invoked from network); 19 Jan 2005 18:36:51 -0000
Received: from mail.fu-berlin.de (130.133.1.2)
  by marvin.muc.de with SMTP; 19 Jan 2005 18:36:51 -0000
Received: by Mail.FU-Berlin.DE (Exim 4.42)
          from curry.zedat.fu-berlin.de ([160.45.10.36])
          for muc-lists-freebsd-security@moderators.muc.de with esmtp
          id <1CrKhH-000Kxg-Ab>; Wed, 19 Jan 2005 19:36:51 +0100
Received: by Curry.ZEDAT.FU-Berlin.DE (Smail3.2.0.98)
	  from news.uni-berlin.de with bsmtp
	  id <m1CrKhH-0014dbC>; Wed, 19 Jan 2005 19:36:51 +0100 (MET)
To: muc-lists-freebsd-security@moderators.muc.de
Path: individual.net!not-for-mail
From: Rudolf Polzer <divzero@gmail.com>
Newsgroups: mpc.lists.freebsd.security,muc.lists.freebsd.security
Followup-To: muc.lists.freebsd.security
Date: 19 Jan 2005 18:36:50 GMT
Lines: 17
Message-ID: <slrncuta62.tj6.divzero@message-id.durchnull.ath.cx>
References: <6BBE5C5603D0D611A06F0002A5D6556405FAA185@nyschx22psge.sch.ge.com>
	<20050119180131.GL19851@techometer.net>
Mime-Version: 1.0
Content-Type: text/plain; charset=iso-8859-15
Content-Transfer-Encoding: 8bit
X-Orig-X-Trace: individual.net
	JagOLM7VMtMHrdxkbo3bxQSoq9e8bN655VwLNJOCWa0UsoEvN5
User-Agent: slrn/0.9.8.1 (FreeBSD)
X-Mailman-Approved-At: Thu, 20 Jan 2005 13:34:20 +0000
Subject: Re: ipf question
X-BeenThere: freebsd-security@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Security issues [members-only posting]
	<freebsd-security.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-security>,
	<mailto:freebsd-security-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-security>
List-Post: <mailto:freebsd-security@freebsd.org>
List-Help: <mailto:freebsd-security-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-security>,
	<mailto:freebsd-security-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 19 Jan 2005 18:36:54 -0000

["Followup-To:" header set to muc.lists.freebsd.security.]
»Erick Mechler« <emechler@techometer.net> wrote:
> :: pass in quick on xl0 proto tcp/udp from any to any port 137 <> 139 keep
> :: state
> 
> This line allows in all tcp and udp ports less than 137 and greater than 
> 139, which is exactly what you don't want :)  If you want to allow all 
> ports 137-139 inclusive, you need to change it to
> 
>   ... port 136 >< 140 keep state
> 
> The < and > operators are not inclusive.

I know it has been defined like that. But why?

Why wasn't an inclusive .. operator used? There must be a reason for this, but
which one is it?