From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1M2P6D-00067z-OB for garchives@archives.gentoo.org; Fri, 08 May 2009 12:22:45 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 5F640E040B; Fri, 8 May 2009 12:22:43 +0000 (UTC) Received: from mx38.mail.ru (mx38.mail.ru [94.100.176.52]) by pigeon.gentoo.org (Postfix) with ESMTP id 0F7DFE040B for ; Fri, 8 May 2009 12:22:43 +0000 (UTC) Received: from [92.113.248.32] (port=61989 helo=localhost) by mx38.mail.ru with asmtp id 1M2P69-00069D-00 for gentoo-user@lists.gentoo.org; Fri, 08 May 2009 16:22:41 +0400 Date: Fri, 8 May 2009 15:22:23 +0300 From: "Sergey A. Kobzar" X-Mailer: The Bat! (v4.0.24) Professional X-Priority: 3 (Normal) Message-ID: <533234192.20090508152223@mail.ru> To: gentoo-user@lists.gentoo.org Subject: Re[3]: [gentoo-user] MAC addresses In-Reply-To: <1244059103.20090430224806@mail.ru> References: <1524077836.20090430180955@mail.ru> <1241120068.12420.48.camel@mayo.local> <1244059103.20090430224806@mail.ru> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Content-Type: text/plain; charset=windows-1251 Content-Transfer-Encoding: quoted-printable X-Spam: Not detected X-Mras: Ok X-Archives-Salt: d6fe9dfb-5454-4247-b947-e9182874e8ba X-Archives-Hash: c4c71a68c81201d06febd5c6e62f0d93 Thursday, April 30, 2009, 10:48:06 PM, Sergey wrote: > Thursday, April 30, 2009, 10:34:28 PM, Daniel wrote: >> On Thu, 2009-04-30 at 18:09 +0300, Sergey A. Kobzar wrote: >>> Hello. >>>=20 >>> I have Gentoo server Linux 2.6.27-gentoo-r8 x86_64 connected to >>> LinkSys switch. It has 2 NICs onboard: >>>=20 >>> eth0 Link encap:Ethernet HWaddr 00:15:17:1a:6e:6c >>> eth1 Link encap:Ethernet HWaddr 00:15:17:1a:6e:6d >>>=20 >>> 2nd NIC is connected to LinkSys switch, but the switch shows that >>> device connected to the port has other MAC address: >>>=20 >>> VLAN ID VLAN 3 >>> MAC 00:15:17:1a:6e:6f >>> Port g31 >>>=20 >>> The difference in last symbol. >>>=20 >>> How is it possible? >> I suggest, to first check which device/OS is telling the truth. Use >> wireshark to capture and review some traffic. Maybe this helps analyse >> the situation. > I've started this thread because connection to the server is unstable > and I see such reports from other servers: > +arp: 10.11.1.203 moved from 00:15:17:1a:6e:6f to 00:15:17:1a:6e:6d on em1 > +arp: 10.11.1.203 moved from 00:15:17:1a:6e:6d to 00:15:17:1a:6e:6f on em1 > +arp: 10.11.1.203 moved from 00:15:17:1a:6e:6f to 00:15:17:1a:6e:6d on em1 > +arp: 10.11.1.203 moved from 00:15:17:1a:6e:6d to 00:15:17:1a:6e:6f on em1 > +arp: 10.11.1.203 moved from 00:15:17:1a:6e:6f to 00:15:17:1a:6e:6d on em1 > BIOS tells that NIC1 has 00:15:17:1a:6e:6c MAC and NIC2 has > 00:15:17:1a:6e:6d. It's strange that 00:15:17:1a:6e:6d MAC is common > for both NICs. I think this happens because Intel NIC Teaming is enabled for the NIC. Is it possible check this using Linux and disable teaming if needed? --=20 Sergey