From owner-freebsd-stable@FreeBSD.ORG Tue Oct 1 12:09:28 2013 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 118E2837 for ; Tue, 1 Oct 2013 12:09:28 +0000 (UTC) (envelope-from gondim@bsdinfo.com.br) Received: from mail.bsdinfo.com.br (mail.bsdinfo.com.br [67.212.89.78]) by mx1.freebsd.org (Postfix) with ESMTP id D8AA325C5 for ; Tue, 1 Oct 2013 12:09:27 +0000 (UTC) Received: from mail.bsdinfo.com.br (mail.bsdinfo.com.br [127.0.0.1]) by mail.bsdinfo.com.br (Postfix) with ESMTP id 6979C139AE for ; Tue, 1 Oct 2013 09:09:24 -0300 (BRT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=bsdinfo.com.br; h=content-type:content-type:subject:subject:to:mime-version :user-agent:from:from:date:date:message-id; s=dkim; t= 1380629363; x=1381493364; bh=A5q01br/D79fKKYgc2msN1n0dgA6yGkmnt+ lzxUF2Hg=; b=SrdHao6WhJ8suW89TtVyDcyvy02NytkYbikVSwO+NwSVZ5NF+Tw R02hNufpAaakuXlmGE2NJ2NFJGx7eeMrAmmaELYoLYG49B5Q6H+7mRjFVDqsSb/X XqOXQbyC4me3JK3QfxPwGggOWcU6i9WVxXU8LdAsE1nk1g9zPbIwipZM= X-Virus-Scanned: amavisd-new at mail.bsdinfo.com.br Received: from mail.bsdinfo.com.br ([127.0.0.1]) by mail.bsdinfo.com.br (mail.bsdinfo.com.br [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 5OlYa3S2wazB for ; Tue, 1 Oct 2013 09:09:23 -0300 (BRT) Received: from MacBook-de-Gondim-2.local (unknown [186.193.54.69]) by mail.bsdinfo.com.br (Postfix) with ESMTPSA id 5316513989 for ; Tue, 1 Oct 2013 09:09:22 -0300 (BRT) Message-ID: <524ABB6B.9070903@bsdinfo.com.br> Date: Tue, 01 Oct 2013 09:09:15 -0300 From: Marcelo Gondim User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:17.0) Gecko/20130801 Thunderbird/17.0.8 MIME-Version: 1.0 To: freebsd-stable@freebsd.org Subject: vlan with ipv6 DAD problem Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Content-Filtered-By: Mailman/MimeDel 2.1.14 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 01 Oct 2013 12:09:28 -0000 Hi all, When I add an IPv6 manually on an interface vlan, I get a message duplicated IP. # ifconfig vlan2 inet6 2804:1054:0:2::1/64 dmesg message: ============== lagg1: IPv6 addresses on em2 have been removed before adding it as a member to prevent IPv6 address scope violation. lagg1: IPv6 addresses on em3 have been removed before adding it as a member to prevent IPv6 address scope violation. vlan2: DAD detected duplicate IPv6 address 2804:1054:0:2::1: NS in/out=1/1, NA in=0 vlan2: DAD complete for 2804:1054:0:2::1 - duplicate found vlan2: manual intervention required It isn't duplicated IP. For it to work I have 2 options: First: reboot system. With reboot all work. Second: # ipfw add 1 deny icmp6 from any to any # ifconfig vlan2 inet6 2804:1054:0:2::1/64 # ipfw delete 1 That way it works normally. This may be a bug or am I doing something wrong? FreeBSD rt01.XXXXX.com.br 9.2-RELEASE FreeBSD 9.2-RELEASE #11 r255918: Fri Sep 27 22:09:57 BRT 2013 root@rt01.XXXXX.com.br:/usr/obj/usr/src/sys/XXXXX amd64 # ifconfig vlan2 vlan2: flags=8843 metric 0 mtu 1500 options=103 ether 00:15:17:8c:81:d6 inet 186.xxx.xxx.1 netmask 0xffffffe0 broadcast 186.xxx.xxx.31 inet6 fe80::215:17ff:fe8c:81d6%vlan2 prefixlen 64 scopeid 0x13 inet6 2804:1054:0:2::1 prefixlen 64 nd6 options=21 media: Ethernet autoselect status: active vlan: 2126 parent interface: lagg1 # ping6 -c 5 2804:1054:0:2::2 PING6(56=40+8+8 bytes) 2804:1054:0:2::1 --> 2804:1054:0:2::2 16 bytes from 2804:1054:0:2::2, icmp_seq=0 hlim=64 time=2.050 ms 16 bytes from 2804:1054:0:2::2, icmp_seq=1 hlim=64 time=2.144 ms 16 bytes from 2804:1054:0:2::2, icmp_seq=2 hlim=64 time=2.024 ms 16 bytes from 2804:1054:0:2::2, icmp_seq=3 hlim=64 time=2.157 ms 16 bytes from 2804:1054:0:2::2, icmp_seq=4 hlim=64 time=2.161 ms --- 2804:1054:0:2::2 ping6 statistics --- 5 packets transmitted, 5 packets received, 0.0% packet loss round-trip min/avg/max/std-dev = 2.024/2.107/2.161/0.058 ms cheers, Gondim