APIPA: Automatic Private IP Addressing

It invokes a standby mechanism for local Internet Protocol version 4 (IPv4) networks supported by Microsoft Windows.

With APIPA, DHCP clients can obtainIP addresseseven when DHCP servers are not functional.

APIPA exists in all modern versions of Windows, includingWindows 10.

Earlier versions of Windows look for a DHCP server for as long as three minutes.

All APIPA devices use the default connection mask 255.255.0.0, and all reside on the samesubnet.

This option is called autoconfiguration in Windows utilities such asipconfig.

Instead, add a new REG_DWORD and set it to 0.

Local networks should not attempt to manually assign addresses in the APIPA range becauseIP address conflictswill result.