What is link-local IPv6?
A link-local address is an IPv6 unicast address that can be automatically configured on any interface using the link-local prefix FE80::/10 (1111 1110 10) and the interface identifier in the modified EUI-64 format. Link-local addresses are not necessarily bound to the MAC address (configured in a EUI-64 format).
Are IPv6 addresses unique?
According to RFC 4007 “IPv6 Scoped Address Architecture,” unicast IPv6 addresses are either link-local in scope and uniquely identify interfaces on only a single link (e.g., addresses derived from the prefix fe80::/10) or they are global in scope and uniquely identify an interface anywhere on the Internet.
What’s the difference between unique and link local IPv6 addresses?
A Unique Local Address (if assigned) has no special significance, while a link-local address must exist on each IPv6-enabled interface as these addresses play a crucial role in providing core IPv6 services (such as Neighbor Discovery). Last edited by Ser Olmy; 08-06-2014 at 04:53 PM.
What’s the difference between link local and unique local?
(Cisco doesn’t manage to explain it properly in their online material.) Link local addresses are used in one single network segment, they can’t be routed. Unique local addresses can be routed, but only within one routing domain. So an ISP can choose to use ULA for services which can’t be publicly accessible.
What are the different types of IPv6 addresses?
Types of IPv6 Addresses, Global Unicast, Link-local, Multicast, Anycast, Loopback addresses. IPv6 has several types of addresses, some of which are explained below. • Global Unicast IPv6 addresses: Used to identify a single interface. These are standard globally unique unicast addresses (public IPv4 addresses) as in IPv4, one per host interface.
What kind of IPv6 address is global unicast?
Global Unicast IPv6 addresses are internet routable IPv6 addresses. • Link Local IPv6 addresses: Link Local IPv6 addresses allow communications between devices on a local link. Link Local IPv6 addresses are not routable. They are used on a subnet. Normal Link Local IPv6 address prefix is fe80::/10.