neighbor discovery problem

Mathieu Arnold mat at FreeBSD.org
Tue Aug 12 13:30:08 UTC 2008


+-le 12.08.2008 14:53:24 +0200, Max Laier a dit :
|> 2a01:678:1:443::443 > 2a01:678:100:2::: ICMP6, echo request, seq 0, length
|> 16 fe80::207:e9ff:fe0e:dead > ff02::1:ff00:0: ICMP6, neighbor solicitation,
|> who has 2a01:678:100:2::, length 32
|> fe80::207:e9ff:fe0e:dead > 2a01:678:1:443::443: ICMP6, redirect,
|                                                          ^------^
| 
| There is your problem.  You have all three hosts connected to the same 
| broadcast domain?  Disable redirects or separate the domains using VLAN or 
| similar - otherwise the gateway will get smart and try to avoid work.

Hum, yes, the same domain, but it must not have been the problem, now, it
works, and I still have :

fe80::207:e9ff:fe0e:dead > ff02::1:ff00:0: ICMP6, neighbor solicitation, who
has 2a01:678:100:2::, length 32
fe80::207:e9ff:fe0e:dead > 2a01:678:1:443::443: ICMP6, redirect,
2a01:678:100:2:: to 2a01:678:100:2::, length 104
fe80::2b0:d0ff:fee1:c05f > fe80::207:e9ff:fe0e:dead: ICMP6, neighbor
advertisement, tgt is 2a01:678:100:2::, length 32

but it works.

-- 
Mathieu Arnold
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