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Introduction

Overview

Networks continue to grow, becoming more complex as they support more protocols and more users. This book teaches you how to plan, configure, maintain, and scale a routed network. It focuses on using Cisco routers connected in LANs and WANs typically found at medium-to-large network sites. After completing this book, you will be able to select and implement the appropriate Cisco IOS services required to build a scalable, routed network.

In this book, you study a broad range of technical details on topics related to routing. First, complex enterprise network frameworks, architectures, and models are explored, and the process of creating, documenting, and executing an implementation plan is detailed. Internet Protocol (IP) routing protocol principles are examined in detail before the following IP Version 4 (IPv4) routing protocols are explored: Enhanced Interior Gateway Routing Protocol (EIGRP), Open Shortest Path First (OSPF), and Border Gateway Protocol (BGP). Manipulating routing updates and controlling the information passed between them are examined. Routing facilities for branch offices and mobile workers are explored. Finally, IP Version 6 (IPv6) is investigated in detail.

Configuration examples and sample verification outputs demonstrate troubleshooting techniques and illustrate critical issues surrounding network operation. Chapter-ending review questions illustrate and help solidify the concepts presented in this book.

This book starts you down the path toward attaining your CCNP, CCIP, or CCDP certification, providing in-depth information to help you prepare for the ROUTE exam (642-902).

The commands and configuration examples presented in this book are based on Cisco IOS Release 12.4


How This Book Is Organized

The chapters and appendixes in this book are as follows:

  • Chapter 1, “Routing Services,” describes the frameworks, architectures, and models used in complex enterprise network designs. The chapter also explores the process of creating, documenting, and executing a network implementation plan. The chapter concludes with a review of IP routing principles, including static and dynamic routing characteristics; classful and classless routing; the differences between distance vector, link-state, and advanced distance vector routing protocol behavior; the characteristics and configuration of RIP; and how Cisco routers populate their routing tables.

  • Chapter 2, “Configuring the Enhanced Interior Gateway Routing Protocol,” introduces EIGRP terminology and operations, and explains how to plan for, configure and verify EIGRP. Considerations for deploying EIGRP in enterprise WANs, and how to configure and verify EIGRP authentication are explored. The chapter concludes with a discussion of optimizing EIGRP implementations.

  • Chapter 3, “Configuring the Open Shortest Path First Protocol,” introduces the OSPF routing protocol. Basic configuration of OSPF, in both single and multiple areas is described. OSPF configuration over specific network types is also explored. The configuration and verification of advanced OSPF features are covered, including passive interface, default routes, summarization, virtual links, changing the cost metric, and special area types. The chapter concludes with a discussion of OSPF authentication configuration and verification.

  • Chapter 4, “Manipulating Routing Updates,” discusses network performance issues related to routing and using multiple IP routing protocols on a network. Implementing route redistribution between different routing protocols is described, and methods of controlling the routing information sent between these routing protocols are explored, including using route maps, distribute lists, and prefix lists. The chapter concludes with a comprehensive example of controlling routing updates.

  • Chapter 5, “Implementing Path Control,” describes path control, and details three tools for path control: offset lists, Cisco IOS IP service level agreements (SLAs), and policy-based routing (PBR). The chapter concludes with a discussion of advanced path control tools.

  • Chapter 6, “Implementing a Border Gateway Protocol Solution for ISP Connectivity,” introduces BGP terminology and concepts, and provides BGP configuration, verification, and troubleshooting techniques. The chapter also introduces route maps for manipulating BGP path attributes and filters for BGP routing updates.

  • Chapter 7, “Implementing Routing Facilities for Branch Offices and Mobile Workers,” discusses branch office implementation planning and the various services that can be implemented for branch office connectivity. The chapter explores how to route traffic to branch offices and discusses how mobile workers can connect to the corporate network.

  • Chapter 8, “Implementing IPv6 in an Enterprise Network,” introduces IPv6 and the IPv6 addressing scheme and explores how IPv6 addresses are configured. Routing protocols that support IPv6 are explored in detail, as is IPv6 policy routing and route redistribution. The chapter concludes with a discussion of how IPv4 networks can be transitioned to IPv6, including dual stack, tunneling, and translation techniques.

642-902 ROUTE Exam Topics

Exam Description

The Implementing Cisco IP Routing (ROUTE 642-902) is a qualifying exam for the Cisco Certified Network Professional CCNP®, Cisco Certified Internetwork Professional CCIP®, and Cisco Certified Design Professional CCDP® certifications. The ROUTE 642-902 exam will certify that the successful candidate has the knowledge and skills necessary to use advanced IP addressing and routing in implementing scalable and secure Cisco ISR routers connected to LANs and WANs. The exam also covers configuration of secure routing solutions to support branch offices and mobile workers.

Exam Topics

The following information provides general guidelines for the content likely to be included on the exam. However, other related topics may also appear on any specific delivery of the exam. In order to better reflect the contents of the exam and for clarity purposes the guidelines below may change at any time without notice.

Implement an EIGRP based solution, given a network design and a set of requirements

  • Determine network resources needed for implementing EIGRP in a network
  • Create an EIGRP implementation plan
  • Create an EIGRP verification plan
  • Configure EIGRP routing
  • Verify an EIGRP solution was implemented properly using show and debug commands
  • Document the verification results for an EIGRP implementation

Implement a multi-area OSPF Network, given a network design and a set of requirements

  • Determine network resources needed for implementing OSPF on a network
  • Create an OSPF implementation plan
  • Create an OSPF verification plan
  • Configure OSPF routing
  • Verify OSPF solution was implemented properly using show and debug commands
  • Document the verification results for an OSPF implementation plan

Implement an eBGP based solution, given a network design and a set of requirements

  • Determine network resources needed for implementing eBGP on a network
  • Create an eBGP implementation plan
  • Create an eBGP verification plan
  • Configure eBGP routing
  • Verify eBGP solution was implemented properly using show and debug commands
  • Document verification results for an eBGP implementation plan

Implement an IPv6 based solution, given a network design and a set of requirements

  • Determine network resources needed for implementing IPv6 on a network
  • Create an IPv6 implementation plan
  • Create an IPv6 verification plan
  • Configure IPv6 routing
  • Configure IPv6 interoperation with IPv4
  • Verify IPv6 solution was implemented properly using show and debug commands
  • Document verification results for an IPv6 implementation plan

Implement an IPv4 or IPv6 based redistribution solution, given a network design and a set of requirements

  • Create a redistribution implementation plan based upon the results from a redistribution analysis
  • Create a redistribution verification plan
  • Configure a redistribution solution
  • Verify that a redistribution was implemented
  • Document results of a redistribution implementation and verification plan
  • Identify the differences between implementing an IPv4 and IPv6 redistribution solution

Implement Layer 3 Path Control Solution

  • Create a Layer 3 path control implementation plan based upon the results of the redistribution analysis
  • Create a Layer 3 path control verification plan
  • Configure Layer 3 path control
  • Verify that a Layer 3 path control was implemented
  • Document results of a Layer 3 path control implementation and verification plan
  • Implement basic teleworker and branch services
  • Describe broadband technologies
  • Configure basic broadband connections
  • Describe basic VPN technologies
  • Configure GRE
  • Describe branch access technologies