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English Forums => 25.1, 25.4 Production Series => Topic started by: Maurice on May 09, 2025, 02:16:38 AM

Title: Kea DHCPv6 PD range syntax with dynamic prefix
Post by: Maurice on May 09, 2025, 02:16:38 AM
I gave Kea a try by replicating my ISC DHCPv6 configuration.

ISC (works): PD range from ::80:0:0:0:0 to ::f0:0:0:0:0, PD size 60.
Kea (new): Prefix ::80:0:0:0:0, prefix length 57, delegated length 60.

But Kea doesn't merge the range and instead literally leases 0:0:0:80::/60 to 0:0:0:f0::/60.

Any hints appreciated.

Cheers
Maurice
Title: Re: Kea DHCPv6 PD range syntax with dynamic prefix
Post by: franco on May 09, 2025, 08:22:24 AM
Kea itself is so enterprisey that it assumes all you ever need are static configurations (much like plain ISC DHCP before it).

Dnsmasq has a tracking feature for this.

We are considering options for Kea not wanting to include the old way to glue prefixes together just yet.


Cheers,
Franco
Title: Re: Kea DHCPv6 PD range syntax with dynamic prefix
Post by: Maurice on May 09, 2025, 11:37:23 AM
Got it. So currently, dnsmasq can't do downstream PD at all (correct?) and Kea can't handle dynamic prefixes?

ISC it is. ¯⁠\⁠_⁠(⁠ツ⁠)⁠_⁠/⁠¯

Cheers
Maurice
Title: Re: Kea DHCPv6 PD range syntax with dynamic prefix
Post by: Monviech (Cedrik) on May 09, 2025, 11:54:38 AM
Right now you are correct.