Praised in its first edition for its approachable style and wealth of information, this new edition provides readers a deep understanding of ip routing protocols, teaches how to implement these protocols using cisco routers, and brings readers up to date protocol and implementation enhancements. Routing tcp/ip, volume 1, second edition, includes protocol changes and cisco features that enhance routing integrity, secure routers from attacks initiated through routing protocols, and provide greater control over the propagation of routing information for all the ip interior routing protocols.