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Re: IPv6 router when switching wifi networks

2008-03-13 14:46:33
Le Thursday 13 March 2008 15:55:05 ext Iljitsch van Beijnum, vous avez écrit :
$ traceroute6
traceroute6 to (2001:1890:1112:1::20) from fe80::21b:
63ff:fe02:3c13%en1, 30 hops max, 12 byte packets
  1  fe80::20b:bfff:fea9:7054%en1  1.698 ms  1.431 ms  1.052 ms
  2  * * *
  3  *^C

Looks like broken (outright missing?) RFC3484 implementation.

If you only have a link-local IPv6 address and an IPv4 address, destination 
address selection must pick IPv4. First the scoping rule (IIRC, rule 2), will 
prefer IPv4. Second the label matching rule (IIRC, rule 5) will prefer IPv4, 
in case rule 2 failed, such as if you had a private IPv4 address.

Rémi Denis-Courmont
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