The lease-delete call never actually worked: it posted {"ip-address": ip}
to /api/kea/leases4/delLease, both wrong. Verified live against a real
OPNsense instance while cleaning up stale leases left by failed NetOrk VM
provisioning attempts — every call returned {"status": "error", "message":
"Missing lease IP parameter"} despite three different body-parameter
guesses (ips as list, ips as string, ip singular). The official API docs
(docs.opnsense.org/development/api/core/kea.html) show LeasesController as
"Abstract [non-callable]" with a del_lease($ips=null) action; despite that
signature looking like a body field, the concrete leases4 route only
accepts the IP as a URL path segment: POST /api/kea/leases4/del_lease/{ip}
confirmed {"status": "ok"} and the lease actually gone from a follow-up
search.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>