With LISP, the change in location of a device does not result in a change in its identity. + Routing locators (RLOCs) – assigned to devices (primarily routers) that make up the global routing system. + Endpoint identifiers (EIDs) – assigned to end hosts. Locator ID Separation Protocol (LISP) solves this issue by separating the location and identity of a device through the Routing locator (RLOC) and Endpoint identifier (EID): We can say routing in the Internet today is like putting direction signs about every city in the world at every crossing. When a host moves from one location to another location, it is assigned a different IPv4 or IPv6 address, which overloads the location/identity semantic. In the Internet nowadays, the IPv4 or IPv6 address of a device represents both its identity and location.
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