From owner-freebsd-questions@FreeBSD.ORG  Wed Dec  3 17:52:14 2003
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 0243D16A4CE
	for <freebsd-questions@FreeBSD.ORG>;
	Wed,  3 Dec 2003 17:52:14 -0800 (PST)
Received: from cactus.fi.uba.ar (cactus.fi.uba.ar [157.92.49.108])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 84C6B43F85
	for <freebsd-questions@FreeBSD.ORG>;
	Wed,  3 Dec 2003 17:52:12 -0800 (PST)
	(envelope-from fgleiser@cactus.fi.uba.ar)
Received: from cactus.fi.uba.ar (cactus.fi.uba.ar [157.92.49.108])
	by cactus.fi.uba.ar (8.12.3/8.12.3) with ESMTP id hB41po5D006768;
	Wed, 3 Dec 2003 22:51:50 -0300 (ART)
	(envelope-from fgleiser@cactus.fi.uba.ar)
Date: Wed, 3 Dec 2003 22:51:50 -0300 (ART)
From: Fernando Gleiser <fgleiser@cactus.fi.uba.ar>
To: fbsd_user <fbsd_user@a1poweruser.com>
In-Reply-To: <MIEPLLIBMLEEABPDBIEGKEGFEPAA.fbsd_user@a1poweruser.com>
Message-ID: <20031203224825.Q94848-100000@cactus.fi.uba.ar>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
X-Scanned-By: MIMEDefang 2.37
cc: "freebsd-questions@FreeBSD. ORG" <freebsd-questions@FreeBSD.ORG>
Subject: Re: IPFILTER & active ftp client
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>,
	<mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>,
	<mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 04 Dec 2003 01:52:14 -0000

On Wed, 3 Dec 2003, fbsd_user wrote:

>
> I have this rule in my Nat rules file. I can see my filter rule
> allow the FTP request to pass through, but I don't see packet return
> back on high port number for data transmission. IT looks like the
> NAT proxy is not opening hole for return data port.
>
> The Nat rules I am using follow
> # Provide special NAT services for Active FTP from LAN users.
> map rl0 0/0 -> 0/32 proxy port 21 ftp/tcp

is rl0 your external interface? Besides, I've had problems with this setup.
Change it to

map rl0 10.0.10.0/29 -> 0/32 proxy port 21 ftp/tcp



		Fer