A lease query by client-id as defined in RFC 5007, DHCPv6 Lease Query, is supported for Local DHCPv6 servers. For security reasons this must be explicitly enabled using the CLI command allow-lease-query. The user identification option must be set to DUID (default value) for lease-query to work. Lease query by address is not supported. It is not possible to filter out leases with the link address, the server always returns all addresses for a client. The Relay Data and Client Link options are not supported and are not returned.