Effectively a follow up to https://forum.opnsense.org/index.php?topic=47136.0 for the new versions.
https://docs.opnsense.org/manual/kea.html#prefix-delegation-ia-pd still lists that "Kea supports prefix delegation with static prefixes." and that "Dynamic prefixes common with most residential ISPs are not supported.".
Does 26.1 offer this functionality (either in dnsmasq or Kea) or do I need to remain on ISC DHCPv6 for this feature? If not, is this feature expected to land in a future version?
Any help or tips would be appreciated.
https://opnsense.org/roadmap/
https://github.com/opnsense/core/issues/9941
Im going to work with this together with Franco but it will still take a while and the result is yet to be seen.
Its not trivial.
Quote from: chrg on March 31, 2026, 11:44:00 AMhttps://docs.opnsense.org/manual/kea.html#prefix-delegation-ia-pd still lists that "Kea supports prefix delegation with static prefixes." and that "Dynamic prefixes common with most residential ISPs are not supported.".
Since most ISPs I have read about so far assign Dynamic IPv6 Prefixes which more or less stay Static or completely Static it's not a big deal IMHO.
And if the Prefix changes from time to time anyway... well... then that's too bad and I will just have to deal with it once in a while :)
QuoteDoes 26.1 offer this functionality (either in dnsmasq or Kea) or do I need to remain on ISC DHCPv6 for this feature?
AFAIK that's what DNSmasqd is for with the small drawback that it can't delegate a IPv6 Prefix to another Router/Server unlike KEA so that's something to keep in mind too in case you need that functionality.