In a computer network, a link-local address is a network address valid only for the communication of devices within the network segment or to the broadcast domain to which the host is connected. Link-local addresses are most often assigned automatically through a process known as "auto-configuration of link-local addresses".

Link-local addresses for IPv4 are defined in the 169.254.0.0.0/16 address block.

With UBIQUITY 11.4 Beta, if the automation network uses the aforementioned class of addresses, the UBIQUITY VPN adapter will automatically assign itself an address compatible with the network based on the specifications provided by the link-local protocol.