RFC: Implementation of RFC 7217 [A Method for Generating Semantically Opaque Interface Identifiers, with IPv6 Stateless Address Autoconfiguration (SLAAC)]

Hi!

I have recently implemented and tested the patch at [1], which 
implements RFC 7217, about generating IPv6 addresses that are constant 
through reboots, but do not expose the MAC address of the machine, not 
being in any way derived by those.

I'd like to get comments, testing and review for this patch, with the 
objective of getting approval to commit it to head once it is 
streamlined enough.

BTW I'd like to thank cognet for his suggestions and help with the 
patch, in particular his help in finding the correct way to implement 
the dad_failures counter.


And thanks in advance to anyone willing to give feedback!


[1] https://reviews.freebsd.org/D49681


-- 
Guido Falsi <madpilot@FreeBSD.org>