Under DHCPv6, even with the option checked to add DHCP leases to DNS, it does not show host entries under DHCPv6 > Leases, and when my DNS server queries OPNsense for my domain, no IPv6 addresses are returned.
Running version 18.7.10_3. Just set it up last night, so I am not sure if the issue occurred on previous versions.
Lack of hostnames with ipv6 is I think an ISC DHCP server issue, it also affects pfSense. If you assign a host a static IPv6 address and enter the hostname there it will show the hostname in the leases table.
As for leases not appearing at all, I did a fix for this, but I think I did it and it was pulled for 19.1, not sure if it was pulled into 18.7.10_3.
Got it. So more or less this is an "expected" issue right now.
Sorry, edited my post for accuracy. The leases themselves appear, and sometimes the MAC address, but no host names.