From ID/locator split to ICN

In this paper we give some background to how the long-lasting discussion on separation of identifiers and locators in networking has influenced the Information-centric Networking (ICN) research. We start with a historical retrospect of the id/locator discussion. We then address the problems that have been fueling the discussion followed by a chronological walkthrough of a number of id/locator split ideas up to some current ICN approaches. Finally we discuss a set of remaining research challenges that need to be addressed before ICN could become a way to resolve the id/locator issue.