Which of these would be a valid APIPA address?
E) Let’s give them a call and ask for their address
The answer: A) 169.254.254.1
Automatic Private IP Addressing (APIPA) is a method of automatically assigning an IP address to a device when no other option is available. If a local address is not assigned and a DHCP server is not available, an IP address will be assigned to a device that allows communication across a local subnet. Although communication outside of the subnet isn’t possible, the ability to communicate to some devices is more useful than no communication at all. APIPA addresses are reserved to be between 169.254.1.0 through 169.254.254.255.
Want to know more? Watch “An Overview of IPv4 and IPv6.”
The primary IP technologies used today are IP version 4 and IP version 6. In this video, you’ll learn the differences between these two technologies, the differences between public and private IP addressing, and how automatic private IP addressing (APIPA) can be used to provide connectivity.