This publication provides internetworking design and implementation case studies and examples, with the intent to help you identify and implement practical internetworking strategies that are both flexible and scalable. This publication was developed to assist professionals preparing for Cisco Certified Internetwork Expert (CCIE) candidacy, though it is a valuable resource for all internetworking professionals. It is designed for use in conjunction with other Cisco manuals or as a standalone reference. You may find it helpful to refer to the Cisco CCIE Fundamentals: Network Design, which provides detailed descriptions of the internetworking strategies and technologies used in this publication | About This Manual Document Objectives This publication provides internetworking design and implementation case studies and examples with the intent to help you identify and implement practical internetworking strategies that are both flexible and scalable. This publication was developed to assist professionals preparing for Cisco Certified Internetwork Expert CCIE candidacy though it is a valuable resource for all internetworking professionals. It is designed for use in conjunction with other Cisco manuals or as a standalone reference. You may find it helpful to refer to the Cisco CCIE Fundamentals Network Design which provides detailed descriptions of the internetworking strategies and technologies used in this publication. Audience This publication is intended to support the network administrator who designs and implements router- or switched-based internetworks and describes practical examples of how to apply Cisco features to meet internetworking needs. Readers should know how to configure a Cisco router and should be familiar with the protocols and media that their routers have been configured to support. Readers will better understand the material in this publication if they are familiar with networking terminology. The Cisco Internetworking Terms and Acronyms publication is a useful reference for those with minimal knowledge of networking terms. Document Organization This manual contains twelve chapters which are described below Chapter 1 RIP and OSPF Redistribution which addresses the issue of integrating Routing Information Protocol RIP networks with Open Shortest Path First OSPF networks Chapter 2 Dial-on-Demand Routing which addresses the dial-on-demand routing DDR feature that allows you to use existing telephone lines to form a wide-area network WAN . Chapter 3 Increasing Security on IP Networks which addresses the broad topic of network security. Chapter 4 Integrating Enhanced IGRP into Existing Networks which addresses the Enhanced Interior Gateway .
