Thomas Steen Rasmussen <tho...@gibfest.dk> wrote in <4e9aa874.5070...@gibfest.dk>:
th> On 14.10.2011 10:26, Thomas Steen Rasmussen wrote: th> > On 14-10-2011 10:09, Hiroki Sato wrote: th> >> Thanks. There is no problem with the source address selection. th> th> I don't understand this comment. I would say that I do th> have problems with the source address selection - th> otherwise it would be preferring ipv6, right ? I mean the address selection is working properly. Your problem is because the default ipv6_prefer policy prefers IPv4 addresses when the source IPv6 addr is in 2002::/16, the destination IPv6 address is not in the same prefix, and IPv4 addresses can be used for the both. It is not a bug of the selection mechanism. The ipv6_prefer policy is defined in RFC 3484 2.1 and this policy chooses a src IPv6 addr in 2002::/16 only if the dest addr is also in the same prefix. You can remove the special rule for 2002::/16 by putting the following lines as /etc/ip6addrctl.conf and reboot the system: ::1/128 50 0 ::/0 40 1 #2002::/16 30 2 ::/96 20 3 ::ffff:0:0/96 10 4 By installing the above, IPv6 address will be preferred even if it is in 2002::/16. I am still not sure why there is a difference between 8.X and 9.X on your box because the code is almost the same. I guess no policy was installed when you used an 8-stable system. -- Hiroki
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