From owner-freebsd-net@FreeBSD.ORG  Tue Jan 25 01:15:08 2005
Return-Path: <owner-freebsd-net@FreeBSD.ORG>
Delivered-To: freebsd-net@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id E512416A4CE
	for <freebsd-net@freebsd.org>; Tue, 25 Jan 2005 01:15:08 +0000 (GMT)
Received: from arginine.spc.org (arginine.spc.org [195.206.69.236])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 4408543D39
	for <freebsd-net@freebsd.org>; Tue, 25 Jan 2005 01:15:08 +0000 (GMT)
	(envelope-from bms@spc.org)
Received: from localhost (localhost [127.0.0.1])
	by arginine.spc.org (Postfix) with ESMTP
	id 501176520E; Tue, 25 Jan 2005 01:15:06 +0000 (GMT)
Received: from arginine.spc.org ([127.0.0.1])
 by localhost (arginine.spc.org [127.0.0.1]) (amavisd-new, port 10024)
 with LMTP id 08163-01; Tue, 25 Jan 2005 01:15:05 +0000 (GMT)
Received: from empiric.dek.spc.org (unknown [213.210.24.3])
	(using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits))
	(No client certificate requested)
	by arginine.spc.org (Postfix) with ESMTP
	id 477CB651F7; Tue, 25 Jan 2005 01:15:05 +0000 (GMT)
Received: by empiric.dek.spc.org (Postfix, from userid 1001)
	id 8E19A6383; Tue, 25 Jan 2005 01:16:15 +0000 (GMT)
Date: Tue, 25 Jan 2005 01:16:15 +0000
From: Bruce M Simpson <bms@spc.org>
To: Jeremie Le Hen <jeremie@le-hen.org>
Message-ID: <20050125011615.GB47638@dhcp120.icir.org>
Mail-Followup-To: Jeremie Le Hen <jeremie@le-hen.org>,
	freebsd-net@freebsd.org
References: <20050124212011.GC59685@obiwan.tataz.chchile.org>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20050124212011.GC59685@obiwan.tataz.chchile.org>
cc: freebsd-net@freebsd.org
Subject: Re: gif(4) and bpf(4)
X-BeenThere: freebsd-net@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Networking and TCP/IP with FreeBSD <freebsd-net.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
	<mailto:freebsd-net-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-net>
List-Post: <mailto:freebsd-net@freebsd.org>
List-Help: <mailto:freebsd-net-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
	<mailto:freebsd-net-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 25 Jan 2005 01:15:09 -0000

On Mon, Jan 24, 2005 at 10:20:11PM +0100, Jeremie Le Hen wrote:
> Is it supposed to work or not ?  If not, does it work on RELENG_5 ?
> My very -CURRENT laptop succeeds in opening bpf(4) on a gif(4) interface.

In a previous existence, I was able to tcpdump on a gif(4) interface;
the tunnel was being used so that I could IPSEC-encapsulate multicast
traffic which was necessary to get past some ISP filters (IPIP was
being dropped at the border).

This was in 5.2.1-RELEASE on a sparc64.

Hope this helps,
BMS