Date: Thu, 12 Jun 2014 15:23:49 -0500 From: Larry Rosenman <ler@lerctr.org> To: freebsd-net@freebsd.org Subject: IPv6: "xxx::x already configured" in logs... why? Message-ID: <20140612202349.GA65079@thebighonker.lerctr.org>
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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
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