Hello,

Le 4 sept. 2013 à 10:33, Jens Link a écrit :

> 
> I think vendors should put some sensible defaults in place, e.g. no
> SLAAC, no privacy extensions, no temporary addresses on severs.

It is not a matter of operating system. OS should keep privacy addresses 
enabled. It is a matter of how the software is developped. The developer 
generally knows what is the best default for the protocol it implements, in the 
case of smtp, non privacy addresses. It is imho up to the developer to alter 
address selection.

If i'm not mistaken, the following should work on Linux systems (don't know for 
others):

> int flags = IPV6_PREFER_SRC_PUBLIC;
> setsockopt(sock, SOL_IPV6, IPV6_ADDR_PREFERENCES, &flags, sizeof(int));


Best regards
Emmanuel Thierry

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