DNSSEC problem with the reverse:

% dig -x 2409::

; <<>> DiG 9.18.18-0ubuntu0.22.04.2-Ubuntu <<>> -x 2409::
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 9388
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags: do; udp: 1232
; EDE: 7 (Signature Expired): (6GJV)
;; QUESTION SECTION:
;0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.9.0.4.2.ip6.arpa. IN PTR

;; Query time: 4296 msec
;; SERVER: 192.168.2.254#53(192.168.2.254) (UDP)
;; WHEN: Sun Apr 07 10:40:34 CEST 2024
;; MSG SIZE  rcvd: 111

Mon article en français sur ce résolveur.