From owner-freebsd-ipfw@FreeBSD.ORG  Tue Aug  9 20:43:38 2005
Return-Path: <owner-freebsd-ipfw@FreeBSD.ORG>
X-Original-To: freebsd-ipfw@freebsd.org
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 DB30016A41F
	for <freebsd-ipfw@freebsd.org>; Tue,  9 Aug 2005 20:43:38 +0000 (GMT)
	(envelope-from cswiger@mac.com)
Received: from pi.codefab.com (pi.codefab.com [199.103.21.227])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 80EAF43D48
	for <freebsd-ipfw@freebsd.org>; Tue,  9 Aug 2005 20:43:38 +0000 (GMT)
	(envelope-from cswiger@mac.com)
Received: from localhost (localhost [127.0.0.1])
	by pi.codefab.com (Postfix) with ESMTP id DD8CD5D15;
	Tue,  9 Aug 2005 16:43:37 -0400 (EDT)
Received: from pi.codefab.com ([127.0.0.1])
	by localhost (pi.codefab.com [127.0.0.1]) (amavisd-new, port 10024)
	with ESMTP id 23678-01; Tue,  9 Aug 2005 16:43:34 -0400 (EDT)
Received: from [192.168.1.3] (pool-68-161-79-217.ny325.east.verizon.net
	[68.161.79.217]) by pi.codefab.com (Postfix) with ESMTP id 453B15C58;
	Tue,  9 Aug 2005 16:43:34 -0400 (EDT)
Message-ID: <42F91577.6020202@mac.com>
Date: Tue, 09 Aug 2005 16:43:35 -0400
From: Chuck Swiger <cswiger@mac.com>
Organization: The Courts of Chaos
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US;
	rv:1.7.11) Gecko/20050801
X-Accept-Language: en-us, en
MIME-Version: 1.0
To: "Tetsuji \"Maverick\" Rai" <maverick31337@vfemail.net>
References: <42F9110A.5080204@vfemail.net>
In-Reply-To: <42F9110A.5080204@vfemail.net>
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit
X-Virus-Scanned: amavisd-new at codefab.com
Cc: freebsd-ipfw@freebsd.org
Subject: Re: firewall/nat question: simple, but no example found
X-BeenThere: freebsd-ipfw@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: IPFW Technical Discussions <freebsd-ipfw.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-ipfw>,
	<mailto:freebsd-ipfw-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-ipfw>
List-Post: <mailto:freebsd-ipfw@freebsd.org>
List-Help: <mailto:freebsd-ipfw-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-ipfw>,
	<mailto:freebsd-ipfw-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 09 Aug 2005 20:43:39 -0000

Tetsuji "Maverick" Rai wrote:
[ ... ]
> I want to set up a firewall/nat so that
> 
> 1. The gateway (also a web server) accepts tcp port 80 and (probably) 25
> from outside. but incoming tcp/udp ports 1-1024,1043,10000 connections
> are blocked.
> 2. Inside private network, nothing is blocked.
> 
> Isn't it so simple?

http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/network-natd.html
http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/firewalls-ipfw.html

-- 
-Chuck