Windows dhcp not updating dns records
As the system grew this task became difficult for any one site to handle, and a new management structure was introduced to spread out the updates among many domain name registrars.Registrars today offer end-user updating to their account information, typically using a web-based form, and the registrar then pushes out update information to other DNS servers.
However, the rapid growth of the Internet and the proliferation of personal computers in the workplace and in homes created the substantial burden for administrators of keeping track of assigned IP addresses and managing their address space.
Many providers offer commercial or free Dynamic DNS service for this scenario.
The automatic reconfiguration is generally implemented in the user's router or computer, which runs software to update the DDNS service.
DHCP became an important tool for ISPs as well to manage their address spaces for connecting home and small-business end-users with a single IP address each by implementing network address translation (NAT) at the customer-premises router.
The private network behind these routers uses address space set aside for these purposes (RFC 1918), masqueraded by the NAT device.