This book focuses on the fundamental concepts of IP routing and distance-vector routing protocols (RIPv2 and EIGRP). It discusses routing protocols from a practicing engineer’s perspective, linking theory and fundamental concepts to common practices and everyday examples. The book benefits and reflects the authors more than 22 years of designing and working with IP routing devices and protocols (and Telecoms systems, in general). Every aspect of the book(s) is written to reflect current best-practices using real-world examples. This book describes the various methods used by routers to learn routing information. The author includes discussion of the characteristics of the different dynamic routing protocols, and how they differ in design and operation. He explains the processing steps involved in forwarding IP packets through an IP router to their destination and discusses the various mechanisms IP routers use for controlling routing in networks. The discussion is presented in a simple style to make it comprehensible and appealing to undergraduate and graduate level students, research and practicing engineers, scientists, IT personnel, and network engineers. It is geared towards readers who want to understand the concepts and theory of IP routing protocols, through real-world example systems and networks.