- Link-local address
Link-local addresses are network addresses which are intended only for use in a local
data link layernetwork, and not for routing beyond that network.
Link-local addresses are often used for
network address autoconfigurationwhere no external source of network addressing information is available.
An example of this use of link-local addressing is the automatic configuration of
IP addresses which is used in both IPv4and IPv6. IPv4 addresses in the range from 169.254.0.0 to 169.254.255.255 are assigned when no other IP addressing assignment is available, e.g. no connectivity to a DHCPserver.
Based on RFC 3927, IPv4 uses the 169.254.0.0/16 (link-local) range of addresses. In the RFC the technique for IPv4 is called "IPv4 Link-Local" (IPV4LL).
Microsoftrefers to this as Automatic Private IP Addressing(APIPA) or Internet Protocol Automatic Configuration (IPAC).
For IPv6 autoconfiguration is based on RFC 2462.
IPv6host to obtain a unique address using the IEEE802 MAC address.
An IPv6 host uses a
DHCPv6server which keeps a record of the IP address and other configuration information for the host.
Combined Stateless and Stateful
Used with the "Managed Address Configuration" and "Other Stateful Configuration" flags in the ICMPv6 Router Advertisement messages.
Address Resolution Protocol(ARP)
* RFC 3484 — default Address Selection for Internet Protocol version 6 (IPv6)
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