This book introduces you to IP mobility and specifically Mobile IP. In the first part, you learn in detail the Mobile IP protocol and related security implications. The rest of the book walks you through increasingly more complex IOS configurations for real-world Mobile IP solutions. This book is well suited for both linear and random-access consumption. Readers who want to read from cover to cover will find little overlap between the chapters. Those intending a more random-access approach will find numerous cross references to help them navigate within the book. The chapters are laid out so that features are introduced in relation to the environment where they are to be used. Thus, you can find the information that you need based on the network environment that you are trying to achieve.