Add IPv6 Privacy settings.
IPv6 Privacy addresses are not enabled by default.
Settings seem to be missing. Suggest they be added and default be set to - on - as per the blog post @ http://ipv6int.net/systems/freebsd-ipv6.html
Activate Generation - net.inet6.ip6.use_tempaddr=1
Prefer privacy addresses and use them over the normal addresses - net.inet6.ip6.prefer_tempaddr=1
#2 Updated by Cyrill B over 6 years ago
There was a very short discussion about the IPv6 privacy extensions in the forum , with the key-point being that it is for clients and not routers. So 99.9% of the users won't need that option. Adding more and more options with their default values to the "System Tunables" just makes it harder to spot the actually relevant options and may cause more harm than help.
Maybe someone else wants to comment on this as well, but for the previously mentioned reasons I wouldn't add those options by default.