From owner-freebsd-net@FreeBSD.ORG Tue Jan 25 14:33:41 2005 Return-Path: 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 1B0A316A4CE for ; Tue, 25 Jan 2005 14:33:41 +0000 (GMT) Received: from postfix3-2.free.fr (postfix3-2.free.fr [213.228.0.169]) by mx1.FreeBSD.org (Postfix) with ESMTP id 926DB43D45 for ; Tue, 25 Jan 2005 14:33:40 +0000 (GMT) (envelope-from tataz@tataz.chchile.org) Received: from tatooine.tataz.chchile.org (vol75-8-82-233-239-98.fbx.proxad.net [82.233.239.98]) by postfix3-2.free.fr (Postfix) with ESMTP id C9162C273; Tue, 25 Jan 2005 15:33:39 +0100 (CET) Received: by tatooine.tataz.chchile.org (Postfix, from userid 1000) id 78012408E; Tue, 25 Jan 2005 15:33:27 +0100 (CET) Date: Tue, 25 Jan 2005 15:33:27 +0100 From: Jeremie Le Hen To: Bruce M Simpson Message-ID: <20050125143327.GD59685@obiwan.tataz.chchile.org> References: <20050124212011.GC59685@obiwan.tataz.chchile.org> <20050125011615.GB47638@dhcp120.icir.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050125011615.GB47638@dhcp120.icir.org> User-Agent: Mutt/1.5.6i cc: freebsd-net@freebsd.org cc: Jeremie Le Hen 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 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 25 Jan 2005 14:33:41 -0000 > 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, Well this is a start. But I would really like to make it work on RELENG_4. In fact, if bpf.h was not included in if_gif.c, I would not mind. But although I'm not (yet ;p) a kernel hacker, I read quickly bpf(9) manpage and I really think the code should work. I dread that this is due to some back magic I can't even imagine. That's why I made a call here for testimonies or explanations. Thanks. Regards, -- Jeremie Le Hen jeremie@le-hen.org