From owner-freebsd-bugs@FreeBSD.ORG Thu Nov 6 05:57:18 2014 Return-Path: Delivered-To: freebsd-bugs@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id E792EE87 for ; Thu, 6 Nov 2014 05:57:17 +0000 (UTC) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id C940C92B for ; Thu, 6 Nov 2014 05:57:17 +0000 (UTC) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.14.9/8.14.9) with ESMTP id sA65vHZQ060330 for ; Thu, 6 Nov 2014 05:57:17 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 194857] New: Ping fails after changing the MAC address of the interface Date: Thu, 06 Nov 2014 05:57:17 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 10.0-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: praveenchoudary.gokina@emulex.com X-Bugzilla-Status: Needs Triage X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-bugs@FreeBSD.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 06 Nov 2014 05:57:18 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=194857 Bug ID: 194857 Summary: Ping fails after changing the MAC address of the interface Product: Base System Version: 10.0-RELEASE Hardware: amd64 OS: Any Status: Needs Triage Severity: Affects Many People Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: praveenchoudary.gokina@emulex.com Test machine 1: ( sender ) OS: FreeBSD 10.0 We are using below Emulex skyhawk adapter. oce0@pci0:4:0:0: class=0x020000 card=0xe80110df chip=0x072010df rev=0x10 hdr=0x00 vendor = 'Emulex Corporation' device = 'OneConnect NIC (Skyhawk)' class = network subclass = ethernet bar [10] = type Prefetchable Memory, range 64, base 0xfb340000, size 16384, enabled bar [18] = type Prefetchable Memory, range 64, base 0xfb320000, size 131072, enabled bar [20] = type Prefetchable Memory, range 64, base 0xfb300000, size 131072, enabled Test machine 2: ( receiver ) OS: FreeBSD 10.0 We are using below Emulex skyhawk adapter. oce0@pci0:4:0:0: class=0x020000 card=0xe80110df chip=0x072010df rev=0x10 hdr=0x00 vendor = 'Emulex Corporation' device = 'OneConnect NIC (Skyhawk)' class = network subclass = ethernet bar [10] = type Prefetchable Memory, range 64, base 0xfb340000, size 16384, enabled bar [18] = type Prefetchable Memory, range 64, base 0xfb320000, size 131072, enabled bar [20] = type Prefetchable Memory, range 64, base 0xfb300000, size 131072, enabled Steps to Reproduce: 1. Both the above cards are connected directly without switch. 2. Configure interfaces. 3. Issue ping on Machine 1 ( sender ). It is able to ping receiver. 4. While ping continues, on Machine 1 (sender), change MAC addr Original MAC: 00:90:fa:6c:18:08 Changed MAC using "ifconfig oce0 ether ab:90:fa:6c:18:08" Changed first two bits 00 => ab. 5. Ping stops working. 6. In tcpdump if we see, it still shows old mac address. We are observing this behavior even with other adapters like Intel igb0@pci0:2:0:0: class=0x020000 card=0x152115d9 chip=0x15218086 rev=0x01 hdr=0x00 vendor = 'Intel Corporation' device = 'I350 Gigabit Network Connection' class = network subclass = ethernet bar [10] = type Memory, range 32, base rxfbc20000, size 131072, enabled bar [18] = type I/O Port, range 32, base rxe020, size 32, enabled bar [1c] = type Memory, range 32, base rxfbc44000, size 16384, enabled -- You are receiving this mail because: You are the assignee for the bug.