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Dhcp not updating reverse dns

When a DHCP server registers and updates DNS pointer (PTR) and address (A) resource records on behalf of its DHCP-enabled clients, it uses the information contained within an additional DHCP option: the Client FQDN option (option 81), which permits a client to provide its FQDN and any instructions to the DHCP server that is used to process DNS dynamic updates on its behalf.

DNS maintains (among other things) information that links a computer's fully qualified domain name (FQDN) to its assigned IP address(es).

While DHCP provides a powerful mechanism for automatically configuring client IP addresses, until recently DHCP did not notify the DNS service to update the DNS records on the client; specifically, updating the client name to an IP address, and IP address to name mappings maintained by a DNS server.

Dynamic updates are supported by the Microsoft DNS service, included in Windows 2000.

Hello, We have started to have lookup problems in out network.

This association, or mapping, of an IP address to a domain name requires that a change in either the address or the name necessitates an update of the information in DNS.

The DHCP protocol does not automatically update DNS in the event that the DHCP server changes the IP address of a client.

DHCP servers can differentiate between Windows 2000 and other clients.