From owner-freebsd-questions@FreeBSD.ORG Thu Apr 9 16:47:06 2009 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id E36BC1065672 for ; Thu, 9 Apr 2009 16:47:06 +0000 (UTC) (envelope-from frederique@isafeelin.org) Received: from progress.isafeelin.org (progress.isafeelin.org [84.244.146.92]) by mx1.freebsd.org (Postfix) with ESMTP id A16C88FC34 for ; Thu, 9 Apr 2009 16:47:06 +0000 (UTC) (envelope-from frederique@isafeelin.org) Received: from progress.isafeelin.org (localhost [127.0.0.1]) by progress.isafeelin.org (Postfix) with ESMTP id C2081130D84; Thu, 9 Apr 2009 18:47:05 +0200 (CEST) Received: from s55919a03.adsl.wanadoo.nl (s55919a03.adsl.wanadoo.nl [85.145.154.3]) (using SSLv3 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by progress.isafeelin.org (Postfix) with ESMTPSA id 9881D130D7F; Thu, 9 Apr 2009 18:47:05 +0200 (CEST) Received: from [192.168.1.15] (unknown [192.168.1.15]) by s55919a03.adsl.wanadoo.nl (Postfix) with ESMTP id 224745265C; Thu, 9 Apr 2009 18:47:05 +0200 (CEST) Message-ID: <49DE2687.5070100@isafeelin.org> Date: Thu, 09 Apr 2009 18:47:03 +0200 From: Frederique Rijsdijk User-Agent: Thunderbird 2.0.0.21 (Windows/20090302) MIME-Version: 1.0 To: Lowell Gilbert References: <49DE11C2.90503@isafeelin.org> <49DE13D9.2070601@streamingedge.com> <44y6u96c2b.fsf@be-well.ilk.org> In-Reply-To: <44y6u96c2b.fsf@be-well.ilk.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: ClamAV using ClamSMTP Cc: freebsd-questions@freebsd.org Subject: Re: combining network interfaces X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 09 Apr 2009 16:47:08 -0000 Lowell Gilbert wrote: > Jacques Manukyan writes: >> Frederique Rijsdijk wrote: >>> Hello, >>> >>> Is there a way in FreeBSD to combine a number of network interfaces to >>> one virtual interface on which I can tcpdump all the traffic of those >>> interfaces at once? >>> >> You're talking about bridging. Look at >> http://www.freebsd.org/doc/en/books/handbook/network-bridging.html >> >> Section 31.5.7.1 is what you're asking for. > > I don't think he wants to forward the traffic between those interfaces, > though; just dump them all together. I'm not sure, though. > You're right. > If I'm right, I don't think tcpdump can do that directly. One idea > might be to run a firewall to choose the packets and to forward a copy > to a dummy interface that can be monitored. > It might be an idea. Somehow I think it should be possible in a more simple way. Now reading 'man 4 lagg'... -- Frederique