The settings on the DNS tab on the properties of a DHCP server or the appropriate DHCP scope in the DHCP snap-in. To enable this support, you can select the Enable updates for DNS clients that do not support dynamic updates option on the DNS tab in the properties of a DHCP server or the appropriate DHCP scope in the DHCP snap-in. The client sends a dynamic update request to the authoritative DNS server for the zone of the DNS name that is being updated. The client's dynamic update request might include a list of prerequisites that must be fulfilled before the update can be completed. Resource Record set does not exist.
Name is in use.
Name is not in use. For more information about these prerequisite types, see RFC 2136. The authoritative DNS server determines whether the prerequisites have been fulfilled. If they have, the authoritative DNS server performs the requested update. If the prerequisites have not been fulfilled, the update fails.