(There is no default value for this entry. DHCP configures the value.)
Specifies the Domain Name System (DNS) domain name of the interface, as provided by the Dynamic Host Configuration Protocol (DHCP).
The DNS domain name is determined by three entries, DhcpDomain, which DHCP configures, and Domain , which the user can configure. If the value of Domain is valid, it takes precedence over the value of DhcpDomain.
The DHCP client service adds this entry to the registry when the service is enabled. Do not change the value of this entry.
This entry is associated with a DHCP option. Configuration data for DHCP options is stored in each HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Dhcp\Parameters\Options\ Option# subkey. The path to this entry is stored in the value of the RegLocation entry in the associated Option# subkey.
To find the DHCP option associated with this entry, use Regedit.exe. From the Edit menu, click Find, and enter the following text: SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\?\DhcpDomain and select only the Data checkbox.