[Kea-users] dhcp6 and ntp-server, version 3.0.3
Karl Gaissmaier
karl.gaissmaier at uni-ulm.de
Mon May 4 21:02:43 UTC 2026
Hi Darren,
Am 04.05.26 um 21:50 schrieb Darren Ankney:
> Hi Charly,
>
> That is good information. From your testing, it seems the way that
> clients have implemented the option (one option with multiple sub
> options) will not support the way Kea has implemented it (multiple
> options with a single sub option each).
I'm not entirely sure about that.
Unfortunately, I don't have a DHCPv6 server that sends multiple
Option-56 containers, each containing an IPv6 address.
Keep in mind that ISC-KEA only sends one IPv6 address; even if another
IPv6 address is configured, only one is ever sent.
It’s also possible that the clients have implemented both options due to
the ambiguity of the RFC.
First and foremost, it would be important for KEA to allow sending
additional IPv6 addresses in additional option-56 containers, strictly
in accordance with the RFC.
If most clients cannot parse this, a workaround could later be allowed
to maintain compatibility with existing DHCP clients.
Best regards
Charly
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