From owner-freebsd-net@FreeBSD.ORG Wed Mar 14 22:32:41 2012 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 4304F106566C for ; Wed, 14 Mar 2012 22:32:41 +0000 (UTC) (envelope-from adarsh.joshi@qlogic.com) Received: from ch1outboundpool.messaging.microsoft.com (ch1ehsobe006.messaging.microsoft.com [216.32.181.186]) by mx1.freebsd.org (Postfix) with ESMTP id E67DF8FC14 for ; Wed, 14 Mar 2012 22:32:40 +0000 (UTC) Received: from mail172-ch1-R.bigfish.com (10.43.68.226) by CH1EHSOBE009.bigfish.com (10.43.70.59) with Microsoft SMTP Server id 14.1.225.23; Wed, 14 Mar 2012 22:32:35 +0000 Received: from mail172-ch1 (localhost [127.0.0.1]) by mail172-ch1-R.bigfish.com (Postfix) with ESMTP id 3167A1406F8 for ; Wed, 14 Mar 2012 22:32:35 +0000 (UTC) X-SpamScore: -6 X-BigFish: VPS-6(zzc85fh14ffOzz1202hzz8275bh8275dhz2ei2a8h668h839hd25h) X-Forefront-Antispam-Report: CIP:198.70.193.64; KIP:(null); UIP:(null); IPV:NLI; H:avexcashub1.qlogic.com; RD:avexcashub2.qlogic.com; EFVD:NLI Received-SPF: neutral (mail172-ch1: 198.70.193.64 is neither permitted nor denied by domain of qlogic.com) client-ip=198.70.193.64; envelope-from=adarsh.joshi@qlogic.com; helo=avexcashub1.qlogic.com ; 1.qlogic.com ; Received: from mail172-ch1 (localhost.localdomain [127.0.0.1]) by mail172-ch1 (MessageSwitch) id 1331764353195726_24298; Wed, 14 Mar 2012 22:32:33 +0000 (UTC) Received: from CH1EHSMHS015.bigfish.com (snatpool3.int.messaging.microsoft.com [10.43.68.227]) by mail172-ch1.bigfish.com (Postfix) with ESMTP id 2CF551C00D5 for ; Wed, 14 Mar 2012 22:32:33 +0000 (UTC) Received: from avexcashub1.qlogic.com (198.70.193.64) by CH1EHSMHS015.bigfish.com (10.43.70.15) with Microsoft SMTP Server (TLS) id 14.1.225.23; Wed, 14 Mar 2012 22:32:33 +0000 Received: from avexmb1.qlogic.org ([fe80::9545:3a4f:c131:467d]) by avexcashub2.qlogic.org ([::1]) with mapi; Wed, 14 Mar 2012 15:32:30 -0700 From: Adarsh Joshi To: "freebsd-net@freebsd.org" Date: Wed, 14 Mar 2012 15:32:29 -0700 Thread-Topic: Zero MAC address Thread-Index: Ac0CMlcWwRtJaw5xQc6Z/3ldDsu+ww== Message-ID: <5E4F49720D0BAD499EE1F01232234BA87438162F95@AVEXMB1.qlogic.org> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US MIME-Version: 1.0 X-OriginatorOrg: qlogic.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Subject: Zero MAC address X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 14 Mar 2012 22:32:41 -0000 Hello everyone, I assigned a 00:00:00:00:00:00 MAC address to one of my interfaces on a mac= hine 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 won= dering if that is legitimate and if not, who is supposed to check that. I m= ean, the stack or the driver on the sending machine or the receiving machin= e. Basically, I am trying to test a statistics utility which keeps track of pa= ckets 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 Cor= poration 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 n= otify the sender immediately by reply e-mail and then delete this message.