What Does Host Identity Protocol (HIP) Mean?
Host Identity Protocol (HIP) is a host identification technology used for IP networks. The Internet has two namespaces: DNS and IP address. HIP is used to separate the locator roles and the end point identifiers of IP addresses. This means it separates host identity from its location. HIP also introduces host identity (HI) namespace. Host Identity Protocol is used for multihoming and provides mobility across IP address families such as IPv4 and IPv6.
Techopedia Explains Host Identity Protocol (HIP)
All the communication over Internet, and data transmission, are handled by DNS and IP address, the two namespaces. IP address namespaces have two responsibilities: