“Everything that can be invented has been invented.”
—Charles Duell, Commissioner, U.S. Patent Office, 1899
Before diving into a new technology, it is critical that you understand what problems that technology is designed to solve and what new advantages it provides. When you finish this chapter, you should be able to explain the rationale for using Internet Protocol version 6 (IPv6). This chapter also presents the main features and benefits of the IPv6 protocol.