3.2.2.3 Ethernet - APIPA

Automatic Private IP Addressing (APIPA) is a feature in Windows operating systems that enables computers to automatically self-configure an IP address and subnet mask when their DHCP server isn’t reachable. When connecting the MPLAB ICD 5 In-Circuit Debugger to the Ethernet, if the network does not have a DHCP server or is unavailable, the network device will use APIPA to assign itself an IP address. APIPA is a network capability feature that allows network devices to automatically assign IP addresses to themselves. It was developed for small non-routable networks as it removes the hassle of figuring out which IP addresses are available and manually assigning your device a static IP address.