Hi,
I have a cosmetic difficulty in a v6-in-v4 tunnel set up between
a 4.3-RELEASE box and a cisco router.
The tunnel is configured like this:
buffoon# ifconfig gif0
gif0: flags=8011<UP,POINTOPOINT,MULTICAST> mtu 1280
inet6 fe80::2d0:b7ff:fe79:a0a7%gif0 --> :: prefixlen 64 scopeid 0x4
inet6 2001:438:1fff:ffff:8::32 --> 2001:438:1fff:ffff:8::31 prefixlen 126
v6-core6.iad1#sh run int tun7
Building configuration...
Current configuration : 252 bytes
!
interface Tunnel7
description v6-in-v4 tunnel to buffoon-gif0.automagic.org
bandwidth 10000
no ip address
ipv6 enable
ipv6 address 2001:438:1FFF:FFFF:8::31/126
tunnel source Loopback0
tunnel destination 208.185.30.208
tunnel mode ipv6ip
end
Functionally, everything is working marvelously. However, the kernel
is spitting out screeds of these:
nd6_lookup: failed to add route for a neighbor(2001:0438:1fff:ffff:0008::0031),
errno=17
Lots and lots of them :)
Sep 10 11:14:02 buffoon /kernel: nd6_lookup: failed to add route for a
neighbor(2001:0438:1fff:ffff:0008::0031), errno=17
Sep 10 11:14:02 buffoon last message repeated 14 times
Sep 10 11:16:02 buffoon last message repeated 116 times
Sep 10 11:23:03 buffoon last message repeated 73 times
Sep 10 11:35:33 buffoon last message repeated 109 times
Sep 10 11:46:03 buffoon last message repeated 344 times
Sep 10 11:56:03 buffoon last message repeated 1302 times
Sep 10 11:57:55 buffoon last message repeated 113 times
I can ping ....:31 just fine from buffoon. It seems like I either need
to turn something off on the FreeBSD box, or on on the cisco. I don't
know anything much about icmp6 neighbour discovery, though, so I'm
not sure exactly what.
Does anybody happen to know a good way of suppressing these log messages?
I'd appreciate a cc on reply, since I'm not subscribed to -net.
Joe
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