IPv6 Network - FreeBSD - Address Privacy Address privacy isn’t enabled by default on FreeBSD and other KAME-derived IPv6 implementations (including MacOS X). You can enable it with the following sysclt setting (as root): sysctl -w net.inet6.ip6.use_tempaddr=1 The new setting may not take effect until after an interface is reconfigured, for instance, after a reboot or when a previously unconnected interface is connected to a network with an IPv6 router.
