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Date:      Fri, 15 Sep 2000 07:55:59 -0500
From:      "Jacques A. Vidrine" <n@nectar.com>
To:        "JINMEI Tatuya / ?$B?@L@C#:H?(B" <jinmei@isl.rdc.toshiba.co.jp>
Cc:        freebsd-net@FreeBSD.ORG
Subject:   Re: ICMP6 redirect rejected; not equal to gw-for-src
Message-ID:  <20000915075559.A6743@hamlet.nectar.com>
In-Reply-To: <y7v1yymru90.wl@condor.isl.rdc.toshiba.co.jp>; from jinmei@isl.rdc.toshiba.co.jp on Fri, Sep 15, 2000 at 04:26:19PM %2B0900
References:  <20000914201817.A1041@spawn.nectar.com> <y7v1yymru90.wl@condor.isl.rdc.toshiba.co.jp>

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On Fri, Sep 15, 2000 at 04:26:19PM +0900, JINMEI Tatuya / ?$B?@L@C#:H?(B wrote:
> >   ICMP6 redirect rejected; not equal to gw-for-src=0040:9633:a3e7:: (must be same): (src=fe80:0007::0240:96ff:fe33:a3e7 dst=fec0:0002::0240:96ff:fe33:a3e7 tgt=fe80:0007::0240:96ff:fe31:e63c) 
> 
> Please show us the following information:
> 1. OS and the version of the host (the node that printed the above
>    message) and the gateway (fe80:0007::0240:96ff:fe33:a3e7).
> 2. netstat -rn on the host
> 3. ifconfig -a on the host
> 4. (if the gateway is a BSD system) netstat -rn on the gateway
> 5. (if the gateway is a BSD system) ifconfig -a on the gateway

Here we are:

==== host (ophelia) ====
Script started on Fri Sep 15 07:44:58 2000
# uname -a
FreeBSD ophelia.nectar.com 4.1-STABLE FreeBSD 4.1-STABLE #2: Thu Sep 14 19:46:25 CDT 2000     root@ophelia.nectar.com:/usr/obj/usr/src/sys/OPHELIA  i386
# ifconfig -a
fxp0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
	inet6 fe80::a00:46ff:fe05:6a43%fxp0 prefixlen 64 scopeid 0x1 
	ether 08:00:46:05:6a:43 
	media: autoselect (100baseTX) status: active
	supported media: autoselect 100baseTX <full-duplex> 100baseTX 10baseT/UTP <full-duplex> 10baseT/UTP
gif0: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
	inet6 fe80::a00:46ff:fe05:6a43%gif0 --> :: prefixlen 64 scopeid 0x2 
gif1: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
gif2: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
gif3: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
	inet6 fe80::1%lo0 prefixlen 64 scopeid 0x6 
	inet6 ::1 prefixlen 128 
	inet 127.0.0.1 netmask 0xff000000 
an0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
	inet6 fe80::240:96ff:fe31:e63c%an0 prefixlen 64 scopeid 0x7 
	ether 00:40:96:31:e6:3c 
# ifconfig an0 up
# rtsol an0
# ifconfig an0
an0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
	inet6 fe80::240:96ff:fe31:e63c%an0 prefixlen 64 scopeid 0x7 
	inet6 fec0:2::240:96ff:fe31:e63c prefixlen 64 
	ether 00:40:96:31:e6:3c 
# netstat -rn
Routing tables

Internet:
Destination        Gateway            Flags      Netif Expire
127.0.0.1          127.0.0.1          UH          0        0      lo0

Internet6:
Destination                       Gateway                       Flags      Netif Expire
::1                               ::1                           UH          lo0
fe80::/10                         link#1                        UCS        fxp0
fe80::%fxp0/64                    link#1                        UC         fxp0
fe80::2e0:81ff:fe10:10a7%fxp0     0:e0:81:10:10:a7              UHLW       fxp0
fe80::a00:46ff:fe05:6a43%fxp0     8:0:46:5:6a:43                UHLW        lo0
fe80::%gif0/64                    link#2                        UC         gif0
fe80::2a0:ccff:fe35:91c7%gif0     link#2                        UHLW       gif0
fe80::a00:46ff:fe05:6a43%gif0     ::1                           UH          lo0
fe80::%lo0/64                     fe80::1%lo0                   Uc          lo0
fe80::%an0/64                     link#7                        UC          an0
fe80::240:96ff:fe31:e63c%an0      0:40:96:31:e6:3c              UHLW        lo0
fe80::240:96ff:fe33:a3e7%an0      0:40:96:33:a3:e7              UHLW        an0
fec0:1::2e0:81ff:fe10:10a7        0:e0:81:10:10:a7              UHLW       fxp0
fec0:2::/64                       link#7                        UC          an0
fec0:2::240:96ff:fe33:a3e7        0:40:96:33:a3:e7              UHLW        an0
ff01::/32                         ::1                           U           lo0
ff02::/16                         link#1                        UCS        fxp0
ff02::%fxp0/32                    link#1                        UC         fxp0
ff02::%gif0/32                    link#2                        UC         gif0
ff02::%lo0/32                     fe80::1%lo0                   UC          lo0
ff02::%an0/32                     link#7                        UC          an0
# ping6 ff02::1%an0
PING6(56=40+8+8 bytes) fe80::240:96ff:fe31:e63c%an0 --> ff02::1%an0
16 bytes from fe80::240:96ff:fe31:e63c%an0, icmp_seq=0 hlim=64 time=0.377 ms
16 bytes from fe80::240:96ff:fe33:a3e7%an0, icmp_seq=0 hlim=64 time=1.608 ms(DUP!)
16 bytes from fe80::240:96ff:fe31:e63c%an0, icmp_seq=1 hlim=64 time=0.283 ms
16 bytes from fe80::240:96ff:fe33:a3e7%an0, icmp_seq=1 hlim=64 time=1.507 ms(DUP!)
16 bytes from fe80::240:96ff:fe31:e63c%an0, icmp_seq=2 hlim=64 time=0.282 ms
16 bytes from fe80::240:96ff:fe33:a3e7%an0, icmp_seq=2 hlim=64 time=1.512 ms(DUP!)
^C
--- ff02::1%an0 ping6 statistics ---
3 packets transmitted, 3 packets received, +3 duplicates, 0% packet loss
round-trip min/avg/max = 0.282/0.928/1.608 ms
# ping6 fe80::240:96ff:fe33:a3e7
PING6(56=40+8+8 bytes) fe80::a00:46ff:fe05:6a43%fxp0 --> fe80::240:96ff:fe33:a3e7
^C
--- fe80::240:96ff:fe33:a3e7 ping6 statistics ---
6 packets transmitted, 0 packets received, 100% packet loss
# dmesg | tail -n 3
ICMP6 redirect rejected; not equal to gw-for-src=0040:9633:a3e7:: (must be same): (src=fe80:0007::0240:96ff:fe33:a3e7 dst=fec0:0002::0240:96ff:fe33:a3e7 tgt=fe80:0007::0240:96ff:fe31:e63c)
ICMP6 redirect rejected; not equal to gw-for-src=0040:9633:a3e7:: (must be same): (src=fe80:0007::0240:96ff:fe33:a3e7 dst=fec0:0002::0240:96ff:fe33:a3e7 tgt=fe80:0007::0240:96ff:fe31:e63c)
ICMP6 redirect rejected; not equal to gw-for-src=0040:9633:a3e7:: (must be same): (src=fe80:0007::0240:96ff:fe33:a3e7 dst=fec0:0002::0240:96ff:fe33:a3e7 tgt=fe80:0007::0240:96ff:fe31:e63c)
# netstat -rn
Routing tables

Internet:
Destination        Gateway            Flags      Netif Expire
127.0.0.1          127.0.0.1          UH          0        0      lo0

Internet6:
Destination                       Gateway                       Flags      Netif Expire
::1                               ::1                           UH          lo0
fe80::/10                         link#1                        UCS        fxp0
fe80::%fxp0/64                    link#1                        UC         fxp0
fe80::2e0:81ff:fe10:10a7%fxp0     0:e0:81:10:10:a7              UHLW       fxp0
fe80::a00:46ff:fe05:6a43%fxp0     8:0:46:5:6a:43                UHLW        lo0
fe80::%gif0/64                    link#2                        UC         gif0
fe80::2a0:ccff:fe35:91c7%gif0     link#2                        UHLW       gif0
fe80::a00:46ff:fe05:6a43%gif0     ::1                           UH          lo0
fe80::%lo0/64                     fe80::1%lo0                   Uc          lo0
fe80::%an0/64                     link#7                        UC          an0
fe80::240:96ff:fe31:e63c%an0      0:40:96:31:e6:3c              UHLW        lo0
fe80::240:96ff:fe33:a3e7%an0      0:40:96:33:a3:e7              UHLW        an0
fec0:1::2e0:81ff:fe10:10a7        0:e0:81:10:10:a7              UHLW       fxp0
fec0:2::/64                       link#7                        UC          an0
fec0:2::240:96ff:fe33:a3e7        0:40:96:33:a3:e7              UHLW        an0
ff01::/32                         ::1                           U           lo0
ff02::/16                         link#1                        UCS        fxp0
ff02::%fxp0/32                    link#1                        UC         fxp0
ff02::%gif0/32                    link#2                        UC         gif0
ff02::%lo0/32                     fe80::1%lo0                   UC          lo0
ff02::%an0/32                     link#7                        UC          an0
#
Script done on Fri Sep 15 07:46:04 2000


==== gateway (spawn) ====
Script started on Fri Sep 15 07:48:51 2000
$ uname -a
FreeBSD spawn.nectar.com 4.1-STABLE FreeBSD 4.1-STABLE #2: Sun Sep 10 21:55:37 CDT 2000     root@spawn.nectar.com:/var/obj/usr/src/sys/SPAWN  i386
$ ifconfig -a
dc0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
	inet 208.42.49.153 netmask 0xfffffffc broadcast 208.42.49.155
	inet6 fe80::2a0:ccff:fe35:91c7%dc0 prefixlen 64 scopeid 0x1 
	inet 10.0.0.2 netmask 0xffffff00 broadcast 10.0.0.255
	ether 00:a0:cc:35:91:c7 
	media: autoselect (100baseTX <full-duplex>) status: active
	supported media: autoselect 100baseTX <full-duplex> 100baseTX 10baseT/UTP <full-duplex> 10baseT/UTP 100baseTX <hw-loopback> none
fxp0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
	inet 10.0.1.101 netmask 0xffffff00 broadcast 10.0.1.255
	inet6 fe80::2e0:81ff:fe10:10a7%fxp0 prefixlen 64 scopeid 0x2 
	inet6 fec0:1::2e0:81ff:fe10:10a7 prefixlen 64 
	inet6 fec0:1:: prefixlen 64 anycast 
	ether 00:e0:81:10:10:a7 
	media: autoselect (100baseTX) status: active
	supported media: autoselect 100baseTX <full-duplex> 100baseTX 10baseT/UTP <full-duplex> 10baseT/UTP
an0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
	inet6 fe80::240:96ff:fe33:a3e7%an0 prefixlen 64 scopeid 0x3 
	inet6 fec0:2::240:96ff:fe33:a3e7 prefixlen 64 
	inet6 fec0:2:: prefixlen 64 anycast 
	ether 00:40:96:33:a3:e7 
lp0: flags=8810<POINTOPOINT,SIMPLEX,MULTICAST> mtu 1500
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
	inet6 fe80::1%lo0 prefixlen 64 scopeid 0x5 
	inet6 ::1 prefixlen 128 
	inet 127.0.0.1 netmask 0xff000000 
gif0: flags=8011<UP,POINTOPOINT,MULTICAST> mtu 1280
	inet6 fe80::2a0:ccff:fe35:91c7%gif0 --> :: prefixlen 64 scopeid 0x6 
	inet 10.5.5.1 --> 10.5.5.2 netmask 0xfffffffc 
gif1: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
gif2: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
gif3: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
faith0: flags=8000<MULTICAST> mtu 1500
$ netstat -rn
Routing tables

Internet:
Destination        Gateway            Flags      Netif Expire
default            208.42.49.154      UGSc       26     3008      dc0
10/24              link#1             UC          0        0      dc0 =>
10.0.1/24          link#2             UC          0        0     fxp0 =>
10.0.1.101         0:e0:81:10:10:a7   UHLW        6     3181      lo0
10.0.1.102         0:a0:cc:35:8e:6a   UHLW        3    56579     fxp0   1123
10.0.1.105         0:60:8:92:5e:fa    UHLW        1     2194     fxp0   1043
10.0.1.255         ff:ff:ff:ff:ff:ff  UHLWb       2      181     fxp0
10.5.5.2           10.5.5.1           UH          4     8335     gif0
127.0.0.1          127.0.0.1          UH          1      538      lo0
208.42.49.152/30   link#1             UC          0        0      dc0 =>
208.42.49.153      0:a0:cc:35:91:c7   UHLW        3      391      lo0
208.42.49.154      0:e0:d0:11:34:88   UHLW       24        0      dc0   1099

Internet6:
Destination                       Gateway                       Flags      Netif Expire
::/96                             ::1                           UGRSc       lo0
::1                               ::1                           UH          lo0
::ffff:0.0.0.0/96                 ::1                           UGRSc       lo0
fe80::/10                         link#2                        UCS        fxp0
fe80::%dc0/64                     link#1                        UC          dc0
fe80::%fxp0/64                    link#2                        UC         fxp0
fe80::2e0:81ff:fe10:10a7%fxp0     0:e0:81:10:10:a7              UHLW        lo0
fe80::a00:46ff:fe05:6a43%fxp0     8:0:46:5:6a:43                UHLW       fxp0
fe80::%an0/64                     link#3                        UC          an0
fe80::240:96ff:fe31:e63c%an0      0:40:96:31:e6:3c              UHLW        an0
fe80::240:96ff:fe33:a3e7%an0      0:40:96:33:a3:e7              UHLW        lo0
fe80::%lo0/64                     fe80::1%lo0                   Uc          lo0
fe80::%gif0/64                    link#6                        UC         gif0
fe80::2a0:ccff:fe35:91c7%gif0     ::1                           UH          lo0
fe80::a00:46ff:fe05:6a43%gif0     link#6                        UHLW       gif0
fec0:1::/64                       link#2                        UC         fxp0
fec0:1::2e0:81ff:fe10:10a7        0:e0:81:10:10:a7              UHLW        lo0
fec0:1::a00:46ff:fe05:6a43        8:0:46:5:6a:43                UHLW       fxp0
fec0:2::/64                       link#3                        UC          an0
fec0:2::240:96ff:fe33:a3e7        fe80::240:96ff:fe31:e63c%an0  UGH         an0
ff01::/32                         ::1                           U           lo0
ff02::/16                         link#2                        UCS        fxp0
ff02::%dc0/32                     link#1                        UC          dc0
ff02::%fxp0/32                    link#2                        UC         fxp0
ff02::%an0/32                     link#3                        UC          an0
ff02::%lo0/32                     fe80::1%lo0                   UC          lo0
ff02::%gif0/32                    link#6                        UC         gif0
$
Script done on Fri Sep 15 07:49:02 2000


Thanks,
-- 
Jacques Vidrine / n@nectar.com / jvidrine@verio.net / nectar@FreeBSD.org


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