I was wondering if there is an existing way to implement RFC7217 (stable privacy IPv6 addresses) in OPNsense. I couldn't see anything in the web interface. I did find a reference online to it being configurable in a BSD environment through /etc/dhcpcd.conf, although I am not entirely sure how to translate that to the OPNsense scenario.
I am aware of the tunables for temporary addresses (privacy extensions to SLAAC), but that is different (RFC4941).
Thanks
Bump