IPv6: "xxx::x already configured" in logs... why?

[Larry Rosenman]

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 at lerctr.org
US Mail: 108 Turvey Cove, Hutto, TX 78634-5688