Hi Peter,
The Problem is, as it looks like. If there is no hostname reserveration. (flex-
id or hardware address etc).
The hostname-expr doesn't have any effect.
Therefor no ddns entry is written in dns.
Regards,
Joop.
On Thursday, January 8, 2026 10:13:58 AM Central European Standard Time Peter
Davies wrote:
> Hi Joop,
> Could you try this "hostname-expr" in your ddns-tuning parameters:
> "hostname-expr" : "'vm-test-' +
> uint8totext(substring(option[50].hex,0,1)) + '-' +
> uint8totext(substring(option[50].hex,1,1)) + '-' +
> uint8totext(substring(option[50].hex,2,1)) + '-' +
> uint8totext(substring(option[50].hex,3,1))"
> You need not define a flex-id or load the flex-id hooks library if you
> do not use host reservations that depend on flex-ids's
> /Peter
>
> On 06/01/2026 14.42, Peter Davies wrote:
> > "hostname-expr" : "concat('vm-test-',addrtotext(option[50].hex))"
--
ISC funds the development of this software with paid support subscriptions.
Contact us at https://www.isc.org/contact/ for more information.
To unsubscribe visit https://lists.isc.org/mailman/listinfo/kea-users.
[email protected]
