What are the APIPA addresses for IPv6?

Automatic Private IP Addressing (APIPA) is a feature in operating systems (such as Windows) that enables computers to automatically self-configure an IP address and subnet mask when their DHCP server isn’t reachable. The IP address range for APIPA is 169.254.0.1-169.254.255.254, with the subnet mask of 255.255.0.0.

When a DHCP client boots up, it looks for a DHCP server in order to obtain network parameters. If the client can’t communicate with the DHCP server, it uses APIPA to configure itself with an IP address from the APIPA range. This way, the host will still be able to communicate with other hosts on the local network segment that are also configured for APIPA.

Consider the following example:

What are the APIPA addresses for IPv6?

Summary

Link-local IPv6 addresses may be initially confusing when you’re first learning about IPv6. But you will quickly become familiar with how they work and appreciate their functionality.  At first, it may seem strange to use a link-local IPv6 address as a next-hop address for a static route or as a default gateway router in a host’s routing table.  However, there are methods such as locally-administered link-local addresses that can dramatically simplify this static configuration.  It’s just another way in which IPv6 can be simpler than the legacy IPv4 protocol.

What kind of IPv6 address is similar to an IPv4 APIPA address?

Link-Local Addresses–These addresses are the equivalent of Automatic Private IP Addressing (APIPA) for IPv4, which uses the 169.254. 0.0/16 network.

What are the 4 types of IPv6 addresses?

IPv6 unicast address assignment consists of the following forms: Aggregate global unicast address. Neutral-interconnect unicast address. NSAP address.

What is FE80 in an IPv6 address?

Typically, link-local IPv6 addresses have “FE80” as the hexadecimal representation of the first 10 bits of the 128-bit IPv6 address, then the least-significant 64-bits of the address are the Interface Identifier (IID).

Is 169.254 an APIPA address?

APIPA assigns a class B IP address from 169.254. 0.0 to 169.254. 255.255 to the client when a DHCP server is either permanently or temporarily unavailable. Designed for small non-routable networks, if a DHCP server becomes available later, the APIPA address is replaced with one from the DHCP server.