Date: Thu, 9 Nov 2000 14:13:47 +0200 (EET) From: martti.kuparinen@piuha.net To: FreeBSD-gnats-submit@freebsd.org Subject: conf/22715: IPv6 prefixlen problem Message-ID: <20001109121347.035CA72504@ws130.nomadiclab.com>
next in thread | raw e-mail | index | archive | help
>Number: 22715
>Category: conf
>Synopsis: IPv6 prefixlen problem
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Thu Nov 09 04:20:00 PST 2000
>Closed-Date:
>Last-Modified:
>Originator: Martti Kuparinen
>Release: FreeBSD 4.2-BETA i386
>Organization:
piuha.net
>Environment:
>Description:
I have a problem with my FreeBSD 4.2-BETA hosts. One is configured as host
and one as a router. The problem described below appeared after upgrading
from 4.1.1-RELEASE to 4.2-BETA.
PROBLEM
=======
This appears on my console:
Nov 9 13:29:51 ws140 /kernel: in6_ifadd: wrong prefixlen for de0(prefix=10 ifid=64)
Nov 9 13:29:51 ws140 /kernel: prelist_update: failed to add a new address
ROOT ws140:~> tcpdump icmp6
tcpdump: listening on de0
13:29:51.225298 fe80::210:5aff:fe69:df83 > ff02::1: icmp6: router advertisement
This is from my host:
ws140:~> ifconfig -a inet6
de0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
inet6 fe80::280:c8ff:fe4c:67b8%de0 prefixlen 64 scopeid 0x1
inet6 3ffe:xxx:x:3f01:280:c8ff:fe4c:67b8 prefixlen 64
gif0: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
ifconfig: gif0 has no inet6 interface address!
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x3
inet6 ::1 prefixlen 128
And this is from the router:
router:~> ifconfig -a inet6
xl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
inet6 fe80::210:5aff:fe69:df83%xl0 prefixlen 64 scopeid 0x1
inet6 3ffe:xxx:x:3f01:210:5aff:fe69:df83 prefixlen 64
inet6 3ffe:xxx:x:3f01:: prefixlen 64 anycast
inet6 3ffe:xxx:x:3f01::1 prefixlen 64
gif0: flags=8111<UP,POINTOPOINT,PROMISC,MULTICAST> mtu 1280
inet6 fe80::210:5aff:fe69:df83%gif0 --> :: prefixlen 64 scopeid 0x2
gif1: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
ifconfig: gif1 has no inet6 interface address!
gif2: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
ifconfig: gif2 has no inet6 interface address!
gif3: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
ifconfig: gif3 has no inet6 interface address!
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x6
inet6 ::1 prefixlen 128
faith0: flags=8000<MULTICAST> mtu 1500
ifconfig: faith0 has no inet6 interface address!
router:~> ps ax | grep -e route -e rtadvd
132 ?? Ss 0:00.48 /usr/sbin/route6d
134 ?? Ss 0:00.07 rtadvd xl0
router:~> grep ipv6 /etc/rc.conf
ipv6_enable="YES"
ipv6_gateway_enable="YES"
ipv6_network_interfaces="xl0"
ipv6_prefix_xl0="3ffe:xxx:x:3f01"
ipv6_ifconfig_xl0="3ffe:xxx:x:3f01::1"
ipv6_router_enable="YES"
ipv6_router_flags=""
ROOT router:~> killall -SIGUSR1 rtadvd
ROOT router:~> cat /var/run/rtadvd.dump
xl0:
Status: UP
Last RA sent: Thu Nov 9 13:49:16 2000
Next RA will be sent: Thu Nov 9 13:55:44 2000
waits: 0, initcount: 3
statistics: RA(out/in/inconsistent): 75/75/0, RS(input): 21
Link-layer address: 0:10:5a:69:df:83
MTU: 1500
DefaultLifetime: 1800, MaxAdvInterval: 600, MinAdvInterval: 200
Flags: MTU: 0
ReachableTime: 0, RetransTimer: 0, CurHopLimit: 64
Prefixes:
!!! ==> fec0::/10(KERNEL, vltime: 2592000, pltime: 604800, flags: LA)
3ffe:200:8:3f01::/64(KERNEL, vltime: 2592000, pltime: 604800, flags: LA)
REASON
======
Looks like this routing table entry is the reason:
fec0::/10 link#1 UCS xl0
What am I doing wrong? Or is there an error in FreeBSD's rc.network6?
There was a change (1.5.2.7 -> 1.5.2.8) which might be the reason...
>How-To-Repeat:
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-bugs" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20001109121347.035CA72504>