- Automatic Private IP Addressing. A feature of systems running under
Windows, which provides a means of assigning
an IP address to a network card should no
DHCP server be available to provide one.
Under APIPA, when Windows fails to obtain an IP address from a DHCP server it allocates an address from the range 169.254.0.1 to 169.254.255.254. It then uses ARP to ensure that the allocated address is unique.
For more information see: