Identifier-Locator Network Protocol

The Identifier/Locator Network Protocol (RFCs) is a network protocol designed to separate the two functions of network addresses, the identification of network endpoints, and assisting routing by separating topological information from node identity. ILNP is backwards-compatible with existing IP, and is incrementally-deployable.

ILNP itself is an architecture with two different instantiations at present. ILNPv4 is ILNP engineered to work as a set of IPv4 extensions, while ILNPv6 is ILNP engineered as a set of IPv6 extensions.

At least 2 independent open-source implementations of ILNPv6 exist. U. St Andrews (Scotland) has a prototype in FreeBSD/x86, while Tsinghua U. (China) has a prototype in Linux/x86.