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HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
Data type |
Range |
Default value |
|---|---|---|
REG_DWORD |
0 | 1 |
1 |
Description
Determines whether the IP autoconfiguration feature is enabled for this interface.
Autoconfiguration allows TCP/IP to configure an interface even when it cannot locate a Dynamic Host Configuration Protocol (DHCP) server. If TCP/IP cannot locate DCHP server, it configures the interface by using IP addresses from the Microsoft reserved Class B network (169.254.0.0), subnet mask 255.255.0.0. During autoconfiguration, TCP/IP continues trying to locate a DHCP server, and it abandons autoconfiguration if it finds one.
The IPAutoconfigurationEnabled entry can also appear in the interface-name subkeys. By default, the entry in the Parameters subkey applies to all interfaces. However, if this entry appears in an interface-name subkey, that entry takes precedence over the entry in the Parameters subkey when configuring that interface.
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Note
Windows 2000 does not add this entry to the registry. You can add it by editing the registry or by using a program that edits the registry.
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Caution
Do not change the value of this entry. If you do, the IP address assigned to the interface might not be reliable.