In Internet Protocol version 6 (IPv6), a type of unicast address intended for local use, only. A link-local address is similar to an IPv4 private IP address, as it is not meant to be routed and not intended for use in a public domain such as the Internet, but confined to a single link, or LAN segment. See also domain, Internet, IPv4, IPv6, LAN, private IP address, site
An IP address in the range from 169.254.1.0 to 169.254.254.255. It is used to automatically assign an IP address to a device in an IP network when there is no other assignment method available, such as a DHCP server. After an address is chosen, the link-local process sends an ARP query with that IP onto the network to see if it exists. If there is no response, the IP is assigned to the device, otherwise another IP is selected, and the ARP is repeated. See ARP, DHCP, Zeroconf and UPnP.