[CALL FOR TESTING] Kea DHCPv6 Dynamic Prefix (Subnet and PD)

[Monviech (Cedrik)]

Hello,

after spending months with our KEA implementation, improving it with lots features that were highly requested, the natural conclusion of this development cycle arrived with the biggest feature.

We implemented a new option "Dynamic Prefix" which provides these new functionality:
- DHCPv6 Subnets can be marked as "Dynamic", which will automatically "track" the IA_NA pool and optionally the DNS server option
- DHCPv6 PD Pools can be attached to a dynamic prefix subnet, offering an automatically "tracked" IA_PD pool

The big difference to ISC here is that multiple WANs are supported, as well as multiple internal interfaces can all provide a IA_NA and IA_PD pool (if your dynamic prefix(es) are large enough to split them)

The documentation how it works has been updated here:
https://github.com/opnsense/docs/blob/master/source/manual/kea.rst#prefix-delegation-ia-pd

The code itself is currently on master, so you either need a development version with the latest core.git or install in a running 26.1.8 using the patch method:

# opnsense-patch 91093f3344 5b7c8e6a2f 5c51ecdee11

References:
https://github.com/opnsense/core/commit/91093f3344
https://github.com/opnsense/core/commit/5b7c8e6a2f
https://github.com/opnsense/core/commit/5c51ecdee11

Thank you for any feedback,
Monviech