From owner-freebsd-net@FreeBSD.ORG Thu Jun 12 20:23:53 2014 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 40AE3D32 for ; Thu, 12 Jun 2014 20:23:53 +0000 (UTC) Received: from thebighonker.lerctr.org (thebighonker.lerctr.org [IPv6:2001:470:1f0f:3ad:223:7dff:fe9e:6e8a]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "thebighonker.lerctr.org", Issuer "CA Cert Signing Authority" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 178D72535 for ; Thu, 12 Jun 2014 20:23:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lerctr.org; s=lerami; h=Content-Type:MIME-Version:Message-ID:Subject:To:From:Date; bh=2N4ckM/U/6CzlER9p6spa4dr5WtcsGenAewlfgSYqCk=; b=EiayeDT21i4OMmNbqjD1MRPfhGD/67sAFW2+meLj84gNIVk6jP0xF7xdpEcbbYXTgHq3xm32iFb7HzaNEcd7pksxnPwh9Z0ZhVlunU+L0Ip5Ov053fYn38/wJjxviWZVHcznp/hZmF2AfKydL+BKdeZ6d9dyEer/Jc/1F0pQPD0=; Received: from thebighonker.lerctr.org ([192.147.25.65]:24901) by thebighonker.lerctr.org with esmtpsa (TLSv1.2:DHE-RSA-AES256-GCM-SHA384:256) (Exim 4.82 (FreeBSD)) (envelope-from ) id 1WvBXK-000Gxq-CA for freebsd-net@freebsd.org; Thu, 12 Jun 2014 15:23:51 -0500 Date: Thu, 12 Jun 2014 15:23:49 -0500 From: Larry Rosenman To: freebsd-net@freebsd.org Subject: IPv6: "xxx::x already configured" in logs... why? Message-ID: <20140612202349.GA65079@thebighonker.lerctr.org> Mail-Followup-To: freebsd-net@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.23 (2014-03-12) X-Spam-Score: -3.6 (---) X-LERCTR-Spam-Score: -3.6 (---) X-Spam-Report: SpamScore (-3.6/5.0) ALL_TRUSTED=-1, BAYES_00=-1.9, RP_MATCHES_RCVD=-0.651 X-LERCTR-Spam-Report: SpamScore (-3.6/5.0) ALL_TRUSTED=-1, BAYES_00=-1.9, RP_MATCHES_RCVD=-0.651 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 Jun 2014 20:23:53 -0000 I just started using IPv6 behind my (new to me) Cisco 1841. I see lots of: Jun 12 15:16:25 thebighonker kernel: in6_ifadd: 2001:470:1f0f:3ad:223:7dff:fe9e:6e8a is already configured in my /var/log/messages. The rc.conf: cloned_interfaces="lagg0:sticky " create_args_lagg0="laggport bce0 laggport bce1 laggproto loadbalance" ifconfig_lagg0="192.147.25.65/24" ifconfig_bce0="up" ifconfig_bce1="up" defaultrouter="192.147.25.1" #################################################### # IPv6 AutoConf: ifconfig_lagg0_ipv6="inet6 accept_rtadv" rtsold_enable="YES" #################################################### hostname=thebighonker.lerctr.org ifconfig_lagg0_alias0="inet 192.147.25.45/24" ifconfig_lagg0_alias1="inet 192.147.25.11/24" ifconfig_lagg0_alias2="inet 192.147.25.66/24" sshd_enable="YES" ntpd_enable="YES" powerd_enable="YES" # Set dumpdev to "AUTO" to enable crash dumps, "NO" to disable dumpdev="AUTO" zfs_enable="YES" # ------------ hostid_enable="YES" postgresql_enable="YES" fah_enable="NO" fah2_enable="NO" linux_enable="YES" smartd_enable="YES" spamd_enable="YES" devcpu_enable="YES" clamav_clamd_enable="YES" clamav_freshclam_enable="YES" sendmail_enable="NONE" exim_enable="YES" exim_flags="-bd -q5m" named_enable="YES" named_program="/usr/local/sbin/named" bsdstats_enable="YES" spamd_flags="-c -Q -m 20" apache22_enable="YES" syslogd_flags="-n -a 192.147.25.0/24:* -a 209.198.148.248/29:*" bacula_fd_enable="YES" sshblock_enable="YES" dovecot_enable="YES" monthly_stats_enable="YES" boinc_client_enable="YES" microcode_update_enable="YES" ---- sysctl.conf: # $FreeBSD: stable/10/etc/sysctl.conf 112200 2003-03-13 18:43:50Z mux $ # # This file is read when going to multi-user and its contents piped thru # ``sysctl'' to adjust kernel values. ``man 5 sysctl.conf'' for details. # # Uncomment this to prevent users from seeing information about processes that # are being run under another UID. #security.bsd.see_other_uids=0 vm.lowmem_period=0 vfs.usermount=1 vfs.zfs.super_owner=1 kern.elf32.fallback_brand=3 kern.ipc.shm_allow_removed=1 net.inet6.ip6.dad_count=0 ===== Ideas? (I may be an idiot, so any criticism welcomed). if you need the 1841's config, I can supply that as well. It's using a Hurricane electric Tunnel. -- Larry Rosenman http://www.lerctr.org/~ler Phone: +1 214-642-9640 E-Mail: ler@lerctr.org US Mail: 108 Turvey Cove, Hutto, TX 78634-5688