Welcome to the exciting world of Cisco certification! You have pickedup this book because you want something better; namely, a better job withmore satisfaction. Rest assured that you have made a good decision. Cisco certification can help you get your first networking job, or more money and a promotion if you are already in the field. Cisco certification can also improve your understanding of the internetworking of more than just Cisco products: You will develop a complete understanding of networking and how different network topologies work together to form a network. This is beneficlal to every networking job and is the reason Cisco certification is in such high demand, even at companies with fewCisco devices. Cisco is the king of routing and switching, the Microsoft of the internetworking world. The new Cisco certifications reach beyond the popular certifications, such as the MCSE and CNE, to provide you with an indispensable factor in understanding today's network-insight into the Clsco world of intemetworking. By deciding that you want to become Cisco certified, you are saying that you want to be the best-the best at routing and the best at switching. This book can lead you in that direction.
Contents Introductton ASsessment Test Chapter 1 Internetworking IntemetWorking Models The Layered APproach Advantages of Reference Models The OSI Reference Model The OSI Layers Ethemet Networking Half and Full-Duplex Ethemet Ethernet at the Data Link Layer Ethernet at the Physical Layer Data Encapsulation The Cisco Three--Layer Hierarchical Model The Distribution Layer The Access Layer Assembling and Cabling Cisco Devices Cabling the Ethernet Local Area Network Ethemet Media and Connector Requirements UTP Connections (RJ--45) Cabling the Wide Area NetWork Selecting Cisco Products Cisco Hubs Cisco Routers Cisco Switches Summary Key Terms Written Labs Lab 1 l: OSI Questlons Lab 12: Defining the OSI Layers and Devices Lab 13: Identifytng Collision and Broadcast Don Review guestions Answers to the Written Labs Answers to Lab l l Answers to Lab 12 Answers to Lab 13 Answers to Review Questions Chapter 2 Switching Technologies Layer-2 Switching Limitations of Layer--2 Switching Bridging versus LAN Switching Three Switch Functions at Layer 2 Address Learning Forward/Filter Decisions Loop Avoidance Spannlng--Tree Protocol (STP) Spanning--Tree Operations Selecting the Root Bridge Selecting the Designated Port Spanning--Tree Port States Spanning--Tree Example W Switch bees Store and Forward Cut--Through (Real Time) FragmentFree (Modified Cut--Through) Summary Key Terms Written Lab Review guestions Answers to the Written Lab Answers to Review guestions Chapter 3 1nteruet Protocol TCP/IP and the DoD Model The Process /APplication Layer Protocols The Host-to-Host Layer Protocols The Internet Layer Protocols IP Addressing IP Terminology The Hlerarchical IP Addressing Scheme Subnetting Subnet Masks Subnetting Class C Addresses Subnetting Class B Addresses Soubnetting Class A Addresses Soummary Key Terms Written Lab Review guestions Answers to the Written Lab Answers to Review guestions Chapter 4 Configuration and 1OS Management Commands Cisco Router User Interface Cisco Router IOS Connecting to a Cisco Router Bringing Up a Router Command-Line Interface Logging into the Router Overview of Router Modes CLI Prompts Editing and Help Features Gathering Basic Routing InfOrmation Soetting the Passwords Banners Router Interfaces Hostnames Descriptions Viewing and Saving Configurations Verifying Your Configuration Soummary Key Terms Commands in This Chapter Written Lab Hands--on Labs Lab 4 1: Logging into a Router Lab 42: Using the Help and Editlng Features Lab 43: Saving a Router Configuration Lab 44: Setting Your Passwords Lab 45: Setting the Hostname Descriptions IP Address and Clock Rate Review guestions Answers to the Written Lab Answers to Review guestions Cbapter 5 IP Routing Routing The IP Routing Process IP Routing in a Larger NetWork IP Routlng in Our Network Static Routing Default Routing Dynamic Routing Administrative Distances Routing Protocols Routing Loops Routing Information Protocol (RIP) RIP Timers Configuring RIP Routing Verifying the RIP Routing Tables Holding Down RIP Propagations Interior Gateway Routing Protocol (IGRP) IGRP Timers Configuring IGRP Routing Configuring IGRP in Our Internetwork 2621A 25O1A 25O1B 25O1C Verifying the IGRP Routing Tables Verifytng Your Configurations The Show ProtOcois Command The Show IP ProtOcol Command The Debug IP RIP Command The Debug IP IGRP Command Summary Key Terms Commands in This Chapter Written Lab Hands--on Labs Lab 5 1: Creatlng Statlc Routes Lab 52: Dynamlc Routing with RIP Lab 53: Dynamic Routing with IGRP Review guestlons Answers to the Written Lab Answers to Review guestions Chapter 6 Vlrtual ams (Vtws) Virtual LANs Broadcast Control OCCUllLy Flexibility and Scalability M Memberships Static VLANs Dynamic VLANs Identifytng VLANs Frame Tagging W Identification Methods Inter--Switch Link (ISL) Protocol Trunking Routing betWeen VLANs W Trunk Protocol (VfP) W Modes of Operation Configuration Revision Number VTP Pruning Summary Key Terms Written Lab Review guestions AnQwers to the Written Lab Answers to Review guestions Chapter 7 Managing a Cisco Intemetwork The Internal Components of a Cisco Router The Router Boot Sequence Managing tonfiguration Registers Understanding the Configuration Register Bits Checking the Current Configuration Register V Changing the Configuration Register Recovering Passwords Backing Up and Restoring the Cisco IOS Verifying Flash Memory Backing Up the Cisco IOS Restoring or Upgrading the Cisco Router IOS Backing Up and Restoring the Cisco Configuratior Backing Up the Cisco Router Configuration Restoring the Cisco Router Configuration Erasing the Configuration Using Cisco Discovery Protocol Getting CDP Timers and Holdtime Information Getting Neighbor Information U V L8 111LVl 1UVV l 1 U1l1V 11l1U1 l11OLlU11 Getting Port and Interface InfOrmation Using Telnet Telnetting into Multiple Devices Simultaneously Checking Telnet Connections Checking Telnet Users Closing Telnet Sessions Resolving Hostnames Building a Host Table Using DNS to Resolve Names Checking Network Connectivity Using the nng Command Using the Troce Command Summary Key Terms Commands in This Chapter Written Lab Hands--on Labs Lab 7 l: Backing Up Your Router IOS Lab 72: Upgrading or Restoring YOur Router IOS Lab 73: Backing Up the Router Configuration Lab 74: Using the Cisco Discovery Protocol (CDF Lab 75: Using Telnet Lab 76: Resolving Hostnames Review guestions Answers to the Written Lab Answers to Review guestions chapter 8 coufiguring Noven 1PX Introduction to Novell IPX Novell IPX Protocol Stack Client--Server Communication Soerver--Server Communication IPX Addressing- Encapsulation Enabling IPX on Cisco Routers Enabling IPX Routing Enabling IPX on Individual Interfaces Configuring Our Internetwork with IPX Configuring IPX on the 262lA Router Configuring IPX on the 25O lA Router Uonliguring 1Fx on tne LDu 1o rtuuLCl Configuring IPX on the 25O lC Router Verifying the IPX Routing Tables Adding Secondary Addresses Configuring Secondary Addresses Subinterfaces Configuring Our IntemetWork with Multiple Ethernet Frame bees Configuring Multiple Frame toes on the 2621P Configuring Multiple Frame bees on the 25O1P Configuring Multiple Frame Whes on the 25O1F Configuring Multiple Frame Whes on the 25O 1< Verifying the IPX Routing Tables Monitoring IPX on Cisco Routers Show IPX Servers Show IPX RoutC Show IPX Trthe chow IPX IntCrfaces ohow IPX IntCdeces Show PTOtocols DebUg IPX Rout8rA#IPX Ping Soummary Key Terms Commands in This Chapter Written Lab Hands--on Labs Lab 8 l: Configuring InternetwOrking Packet E: Lab 82: Adding Secondary NetwOrk Addresses Multiple Frame bees with IPX Review guestions Answers to the Written Lab Answer to Review Questions Chapter 9 Managing Traffic with Access Lists Access Lists Standard IP Access Lists Controlling VTY (Telnet) Access Extended IP Access Lists Monitoring IP Access Lists IPX Access Lists Standard IPX Access Lists Mtx-vxxuvu 11 xx 11vvVOO AnlOLO Iry SAn Filters Verifying IPX Access Lists Summary Key Terms Commands in This Chapter Written Lab Hands--on Labs Lab 9 1: Standard IP Access Lists Lab 92: Extended IP Access Lists Lab 93: Standard IPX Access Lists Review guestions Answers to the Written Lab Answers to Review guestions Chapter 1O wide Axea Networking Protocols Wide Area Networks Defining WAN Terms W Connection bees WAN Support High--Level Data-Link Control Protocol (HDLC) Point--to-Point Protocol (PPP) Link Control Protocol (LCP) Configuration Option PPP Session Establishment PPP Autheritication Methods Configuring PPP on Cisco Routers Configuring PPP Authentication Verifying PPP Encapsulation Frame Relay Frame Relay Terminology Frame Relay Encapsulation Data Link Connection Identifiers (DLCIs) Local Management Interface (LMI) Subinterfaces Mapping Frame Relay Frame Relay Congestion Control Committed InfOrmation Rate (CIR) Monitoring Frame Relay Integrated Services Digital Network (ISDN) ISDN Components Basic Rate Interface (BRl) Primary Rate Interface (PRI) ISDN with Cisco Routers Dial-on--Demand Routing (DDR) Configuring DDR Configuring Static Routes Spec1fying Interesting Traffic Configuring the Dialer InfOrmation Optional Commands DDR with Access Lists Verifying the ISDN Operation Summary Key Terms Commands in This Chapter Written Lab Hands--on Labs Lab lO l: Configuring PPP Encapsulation and A1 Lab lO2: Configuring arid Monitoring HDLC Lab lO3: Configuring Frame Relay and Subintel Lab 1O4: Configuring ISDN and BRI Interfaces Review guestions Answers to the Written Lab Answers to Review guestions Appendix A Practice Exam guestions to the Practice Exam Answers to the Practice Exam APpendix B connguring the catalyst 19oo switcb Features of the l9OO Switch The Three Configuration Options Connecting to the Console Port l9OO Switch Startup Connecting to an Ethernet Port Cisco 19OO IOS Configuration Commands Q oetting the Passwords q oetting the Hostname Q oetting IP InfOrmatiofl Configuring Switch Interfaces Configuring Interface Descriptions Configuring the Port Duplex Verifying IP Connectivity Erasing the Switch Configuratlon Managing the MAC Address Table Setting Permanent and Static MAC Addresses Configuring Port Security Using the Show VerstOn Command Changing the LAN Switch twe Configuring ws Assigning Switch Ports to VLANs Configuring Trunk Ports Clearing VLANs from Trunk Links Verifying Trunk Links Configuring ISL Routing Configuring VTP- Configuring the Domain Adding to a VTP Domain W Pruning Restoring or Upgrading the Catalyst 19OO IOS Backing Up and Restoring the Catalyst l9OO Co CDP with the 19OO Switch Summary Key Terms Commands in This Appendix Written Lab Hands-on Labs Lab B 1: Managing the 19OO Switch Lab B2: l9OO Switch Operations Lab B3: Creating Ws Lab B4: Assigning VLANs to Switch Ports Lab B5: Configuring Trunking Lab B6: Configuring VTP Lab B7: Configuring Iriter--M Routing with Review guestions Answers to the Written Lab Answers to Review guestions APpendIn C Commauds iu This Study Guide Glossary