From owner-freebsd-drivers@FreeBSD.ORG Wed Mar 14 23:43:33 2012 Return-Path: Delivered-To: freebsd-drivers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id E8681106564A for ; Wed, 14 Mar 2012 23:43:33 +0000 (UTC) (envelope-from sendtomatt@gmail.com) Received: from mail-pz0-f45.google.com (mail-pz0-f45.google.com [209.85.210.45]) by mx1.freebsd.org (Postfix) with ESMTP id AA7028FC0C for ; Wed, 14 Mar 2012 23:43:33 +0000 (UTC) Received: by dadp14 with SMTP id p14so10079227dad.18 for ; Wed, 14 Mar 2012 16:43:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; bh=68Ykq4ef2vxKwO9XpNZQjSt29OjgY9qELlpWtUNYoDE=; b=K4wymvv2TTpeeZscrhLejVhxP8hxOXoVxcxatYjYWPkvPbkd08Ka6YhwE4CeAgsYtD FYFzA379LbGuRS+GMVNqgqxjsZSPyU21ytBwyoIwnZ3rvhLEI5+BvZuUGtKICPcnx+3P fLBiub1r21yZx29Ik+YDqvnDFlUEvS8njEpFkXttXgyC4EVq/fil00NffPKIyqC4a12u +29Bu6ub6lXvssUm0uv0vK3/g7ovmFh2XE4fUaJOEABsmpyOoNnNRwvmfwlCQmzM+5HC v1Ml+7HVfhUM0y1aRAcU81tPawPPPyYQ6b0pG7s1xOlGQEXEhfEBE7SpNJKsmLKlrOtl kM6w== Received: by 10.68.228.69 with SMTP id sg5mr4784853pbc.91.1331768613190; Wed, 14 Mar 2012 16:43:33 -0700 (PDT) Received: from flatline.local (70-36-223-154.dsl.dynamic.sonic.net. [70.36.223.154]) by mx.google.com with ESMTPS id r6sm429838pbq.56.2012.03.14.16.43.29 (version=SSLv3 cipher=OTHER); Wed, 14 Mar 2012 16:43:32 -0700 (PDT) Message-ID: <4F612D1A.9020207@gmail.com> Date: Wed, 14 Mar 2012 16:43:22 -0700 From: matt User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:10.0.3) Gecko/20120314 Thunderbird/10.0.3 MIME-Version: 1.0 To: Adarsh Joshi References: <5E4F49720D0BAD499EE1F01232234BA87438162F44@AVEXMB1.qlogic.org> In-Reply-To: <5E4F49720D0BAD499EE1F01232234BA87438162F44@AVEXMB1.qlogic.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: "freebsd-drivers@freebsd.org" Subject: Re: Zero MAC address X-BeenThere: freebsd-drivers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Writing device drivers for FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 14 Mar 2012 23:43:34 -0000 On 03/14/12 14:06, Adarsh Joshi wrote: > Hello everyone, > > I assigned a 00:00:00:00:00:00 MAC address to one of my interfaces on a machine and tried to ping the peer machine. The ping did go through fine. > > I can the see the request and reply packets on the packet capture. I am wondering if that is legitimate and if not, who is supposed to check that. I mean, the stack or the driver on the sending machine or the receiving machine. > > Basically, I am trying to test a statistics utility which keeps track of packets with invalid MAC addresses. Are the packets with zero MAC addresses be classified as invalid? > > Thanks a lot > Adarsh > > > ________________________________ > This message and any attached documents contain information from QLogic Corporation or its wholly-owned subsidiaries that may be confidential. If you are not the intended recipient, you may not read, copy, distribute, or use this information. If you have received this transmission in error, please notify the sender immediately by reply e-mail and then delete this message. > _______________________________________________ > freebsd-drivers@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-drivers > To unsubscribe, send any mail to "freebsd-drivers-unsubscribe@freebsd.org" > My impression is that 00:00:00:00:00:00 is the very first ethernet phy as assigned by Xerox? As far as I know there is no special role at layer 2 for zeros. Matt