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Introducing Routing & Switching in the Enterprise, CCNA Discovery Learning Guide,
Introducing Routing and Switching in the Enterprise, CCNA Discovery Learning Guide is the official supplemental textbook for the Introducing Routing and Switching in the Enterprise course in the Cisco(R) Networking Academy(R) CCNA(R) Discovery curriculum version 4. The course, the third of four in the new curriculum, familiarizes you with the equipment
applications and protocols installed in enterprise networks, with a focus on switched networks, IP Telephony requirements, and security. It also introduces advanced routing protocols such as Enhanced Interior Gateway Routing Protocol (EIGRP) and Open Shortest Path First (OSPF) Protocol. Hands-on exercises include configuration, installation, and troubleshooting. The Learning Guide, written and edited by instructors, is designed as a portable desk reference to use anytime, anywhere to reinforce the material from the course and organize your time. The Learning Guide's features help you focus on important concepts to succeed in this course: Chapter Objectives-Review core concepts by answering the focus questions listed at the beginning of each chapter. Key Terms-Refer to the lists of networking vocabulary introduced and highlighted in context in each chapter. The Glossary defines each key term. Summary of Activities and Labs-Maximize your study time with this complete list of all associated exercises at the end of each chapter. Check Your Understanding-Evaluate your readiness with the end-of-chapter questions that match the style of questions you see in the online course quizzes. The answer key explains each answer. Challenge Questions and Activities-Apply a deeper understanding of theconcepts with these challenging end-of-chapter questions and activities. The answer key explains each answer. Hands-on Labs- Master the practical, hands-on skills of the course by performing all the tasks in the course labs and additional challenge labs included in Part II of the Learning Guide. How To-Look for this icon to study the steps you need to learn to perform certain tasks. Interactive Activities-Reinforce your understanding of topics with more than 60 different exercises from the online course identified through-out the book with this icon. The files for these activities are on the accompanying CD-ROM. Packet Tracer Activities- Explore and visualize networking concepts using Packet Tracer exercises interspersed throughout some chapters. The files for these activities are on the accompanying CD-ROM. Packet Tracer v4.1 software developed by Cisco is available separately. Hands-on Labs-Work through all 44 course labs and 4 additional challenge labs included in Part II of the book. The labs are an integral part of the CCNA Discovery curriculum; review the core text and the lab material to prepare for all your exams. Companion CD-ROM The CD-ROM includes Interactive Activities Packet Tracer Activity files IT Career Information Taking Notes Lifelong Learning This book is part of the Cisco Networking Academy Series from Cisco Press(R). Books in this series support and complement the Cisco Networking Academy curriculum.
Contents:
Introduction xxix Part I: Concepts Chapter 1 Networking in the Enterprise 3 Objectives 3 Key Terms 3 Describing the Enterprise Network 4 Supporting the Business Enterprise 5 Traffic Flow in the Enterprise Network 5 Enterprise Campus 8 Enterprise Edge 8 Service Provider Edge 10 Enterprise LANs and WANs 10 Intranets and Extranets 12 Identifying Enterprise Applications 12 Traffic Flow Patterns 12 Applications and Traffic on an Enterprise Network 13 Network Traffic Prioritization 14 Data Traffic 14 Voice and Video Traffic 14 Supporting Remote Workers 15 Teleworking 15 Virtual Private Networks 16 Summary 18 Activities and Labs 18 Check Your Understanding 19 Challenge Questions and Activities 20 Chapter 2 Exploring the Enterprise Network Infrastructure 21 Objectives 21 Key Terms 21 Describing the Current Network 22 Enterprise Network Documentation 22 Business Continuity Plan 24 Business Security Plan 25 Network Maintenance Plan 25 Service-Level Agreement 25 Network Operations Center (NOC) 26 Telecommunication Room Design and Considerations 29 Supporting the Enterprise Edge 31 Service Delivery at the Point of Presence 31 Security Considerations at the Enterprise Edge 32 Connecting the Enterprise Network to External Services 33 Reviewing Routing and Switching 34 Router Hardware 35 Out-of-Band Management 37 In-Band Management 38 Basic Router CLI show Commands 38 Basic Router Configuration Using CLI 46 Switch Hardware 48 Basic Switch CLI Commands 50 Summary 59 Activities and Labs 59 Check Your Understanding 60 Challenge Questions and Activities 63 Chapter 3 Switching in an Enterprise Network 65 Objectives 65 Key Terms 65 Describing Enterprise-Level Switching 67 Switching and Network Segmentation 67 Multilayer Switching 68 Layer 2 69 Layer 3 69 Types of Switching 69 Store-and-Forward 70 Cut-Through Switching 70 Switch Security 70 Preventing Switching Loops 71 Redundancy in a Switched Network 72 Multiple Frame Transmissions 74 MAC Database Instability 75 Spanning Tree Protocol (STP) 75 Blocking 77 Listening 77 Learning 77 Forwarding 77 Disabled 77 Root Bridges 78 Spanning Tree in a Hierarchical Network 79 PortFast 80 UplinkFast 80 BackboneFast 81 STP Diagnostic show Commands 81 Rapid Spanning Tree Protocol (RSTP) 85 Configuring VLANs 85 Virtual LAN 85 Static VLANs 86 Dynamic VLANs 87 Configuring a Virtual LAN 87 Identifying VLANs 91 Trunking and Inter-VLAN Routing 92 Trunk Ports 92 Access Port 93 Trunk Port 93 Extending VLANs Across Switches 94 Inter-VLAN Switching 95 Maintaining VLANs on an Enterprise LAN 97 VLAN Trunking Protocol (VTP) 97 VTP Modes 98 VTP Revision Numbers 98 VTP Message Types 99 Configuring VTP 99 VLAN Support for IP Telephony and Wireless 102 VLAN Best Practices 103 Summary 105 Activities and Labs 105 Check Your Understanding 106 Challenge Questions and Activities 108 Chapter 4 Addressing in an Enterprise Network 109 Objectives 109 Key Terms 109 Using a Hierarchical IP Network Address Scheme 110 Flat and Hierarchical Networks 110 Hierarchical Network Addressing 112 Using Subnetting to Structure the Network 115 Using VLSM 116 Subnet Mask 117 Calculating Subnets Using Binary Representation 118 Basic Subnetting Process 120 Variable-Length Subnet Masks (VLSM) 122 Implementing VLSM Addressing 124 Using Classless Routing and CIDR 129 Classful and Classless Routing 129 CIDR and Route Summarization 132 Calculating Route Summarization 135 Discontiguous Subnets 136 Subnetting and Addressing Best Practices 138 Using NAT and PAT 140 Private IP Address Space 140 NAT at the Enterprise Edge 142 Static and Dynamic NAT 142 Configuring Static NAT 144 Configuring Dynamic NAT 145 Using PAT 146 Summary 149 Activities and Labs 149 Check Your Understanding 150 Challenge Questions and Activities 154 Chapter 5 Routing with a Distance Vector Protocol 157 Objectives 157 Key Terms 157 Managing Enterprise Networks 159 Enterprise Networks 159 Enterprise Topologies 159 Star Topology 160 Partial Mesh 162 Full Mesh 162 Static and Dynamic Routing 163 Directly Connected Routes 164 Static Routes 164 Dynamic Routes 164 Comparing Static and Dynamic Routing 164 Configuring Static Routes 166 Default Route 168 Routing Using the RIP Protocol 170 Distance Vector Routing Protocols 170 Routing Information Protocol (RIP) 170 Configuring RIPv2 173 Problems with RIP 175 Verifying RIP 177 Routing Using the EIGRP Protocol 178 Limitations of RIP 178 Enhanced Interior Gateway Routing Protocol (EIGRP) 179 EIGRP Terminology and Tables 181 Neighbor Table 181 Topology Table 181 Routing Table 182 EIGRP Neighbors and Adjacencies 184 EIGRP Metrics and Convergence 186 Implementing EIGRP 189 Configuring EIGRP 189 Key Creation 191 Enabling Authentication 192 EIGRP Route Summarization 193 Verifying EIGRP Operation 195 Issues and Limitations of EIGRP 201 Summary 202 Activities and Labs 202 Check Your Understanding 203 Challenge Questions and Activities 205 Chapter 6 Routing with a Link-State Protocol 207 Objectives 207 Key Terms 207 Routing Using the OSPF Protocol 208 Link-State Protocol Operation 208 OSPF Metrics and Convergence 209 OSPF Neighbors and Adjacencies 212 OSPF Areas 216 Implementing Single-Area OSPF 218 Configuring Basic OSPF in a Single Area 218 Configuring OSPF Authentication 220 Tuning OSPF Parameters 222 Specifying the DR and BDR 222 Modifying Bandwidth Values 222 Verifying OSPF Operation 224 Using Multiple Routing Protocols 228 Configuring and Propagating a Default Route 228 Configuring OSPF Summarization 231 OSPF Issues and Limitations 232 Using Multiple Protocols in the Enterprise 233 Summary 237 Activities and Labs 237 Check Your Understanding 238 Challenge Questions and Activities 243 Chapter 7 Implementing Enterprise WAN Links 245 Objectives 245 Key Terms 245 Connecting the Enterprise WAN 247 WAN Devices and Technology 247 WAN Standards 250 Accessing the WAN 251 TDM 252 STDM 253 Packet and Circuit Switching 254 Dedicated Leased Line 254 Circuit Switching 254 Packet Switching 255 Cell Switching 255 Switched Virtual Circuit 256 Permanent Virtual Circuit 256 Last-Mile and Long-Range WAN Technologies 257 Comparing Common WAN Encapsulations 258 Ethernet and WAN Encapsulations 258 HDLC and PPP 260 HDLC 260 PPP 260 Configuring PPP 263 PPP Authentication 266 Password Authentication Protocol 266 Challenge Handshake Authentication Protocol 267 Configuring PAP and CHAP 268 Using Frame Relay 271 Overview of Frame Relay 271 Frame Relay Functionality 272 Inverse ARP 272 Local Management Interface 273 Summary 275 Activities and Labs 275 Check Your Understanding 276 Challenge Questions and Activities 277 Chapter 8 Filtering Traffic Using Access Control Lists 279 Objectives 279 Key Terms 279 Using Access Control Lists 280 Traffic Filtering 280 Access Control Lists 281 Types and Usage of ACLs 283 Standard ACLs 284 Extended ACLs 284 Named ACLs 284 ACL Processing 284 Using a Wildcard Mask 287 ACL Wildcard Mask Purpose and Structure 287 Analyzing the Effects of the Wildcard Mask 289 Configuring Access Control Lists 292 Placing Standard and Extended ACLs 292 Step 1: Determine Traffic-Filtering Requirements 292 Step 2: Decide Type of ACL to Suit Requirements 292 Step 3: Determine Router and Interface for ACL 294 Step 4: Determine Direction to Filter Traffic 294 Basic ACL Configuration Process 295 Configuring Numbered Standard ACLs 297 Configuring Numbered Extended ACLs 299 Configuring Named ACLs 302 Configure Router vty Access 304 Permitting and Denying Specific Types of Traffic 306 Configuring ACLs for Application and Port Filtering 306 Configuring ACLs to Support Established Traffic 308 Effects of NAT and PAT on ACL Placement 309 Analyzing Network ACLs and Placement 311 Configuring ACLs with Inter-VLAN Routing 313 ACL Logging and Best Practices 314 Using Logging to Verify ACL Functionality 314 Analyzing Router Logs 317 ACL Best Practices 318 Summary 319 Activities and Labs 320 Check Your Understanding 321 Challenge Questions and Activities 325 Chapter 9 Troubleshooting an Enterprise Network 327 Objectives 327 Key Terms 327 Understanding the Impact of Network Failure 328 Enterprise Network Requirements 328 Monitoring and Proactive Maintenance 330 Network Monitoring 330 Proactive Maintenance 332 Troubleshooting and the Failure Domain 332 Troubleshooting Process 334 Troubleshooting Switching and Connectivity Issues 336 Troubleshooting Basic Switching 336 Troubleshooting VLAN Configuration Issues 340 Access or Trunk Port 343 Native and Management VLANs 343 Troubleshooting VTP 343 Troubleshooting Routing Issues 345 RIP Issues 345 EIGRP Issues 351 OSPF Issues 358 Route Redistribution Issues 361 Troubleshooting WAN Configurations 366 Troubleshooting WAN Connectivity 367 Troubleshooting WAN Authentication 372 Troubleshooting ACL Issues 374 Determining If an ACL Is the Issue 374 ACL Configuration and Placement Issues 375 Summary 377 Activities and Labs 377 Check Your Understanding 378 Challenge Questions and Activities 381 Chapter 10 Putting It All Together 383 Summary Activity 384 Activities and Labs 384 Appendix A Check Your Understanding and Challenge Questions Answer Key 385 Chapter 1 385 Check Your Understanding 385 Challenge Questions and Activities 386 Chapter 2 386 Check Your Understanding 386 Challenge Questions and Activities 389 Chapter 3 389 Check Your Understanding 389 Challenge Questions and Activities 392 Chapter 4 392 Check Your Understanding 392 Challenge Questions and Activities 395 Chapter 5 395 Check Your Understanding 395 Challenge Questions and Activities 397 Chapter 6 397 Check Your Understanding 397 Challenge Questions and Activities 398 Chapter 7 399 Check Your Understanding 399 Challenge Questions and Activities 400 Chapter 8 400 Check Your Understanding 400 Challenge Questions and Activities 402 Chapter 9 403 Check Your Understanding 403 Challenge Questions and Activities 405 Glossary 407 Index 427 Part II: Labs Chapter 1 Labs: Networking in the Enterprise 503 Lab 1-1: Capturing and Analyzing Network Traffic (1.2.2) 504 Task 1: Connect the Routers and Configure 505 Task 2: Connect the Host to the Switch and Configure 505 Task 3: Verify Connectivity Using Ping 505 Task 4: Launch Wireshark 506 Setting Wireshark to Capture Packets in Promiscuous Mode 508 Setting Wireshark for Network Name Resolution 508 Task 5: Ping PDU Capture 510 Task 6: Examine the Packet List Pane 511 Task 7: Examine the Packet Details Pane 511 Task 8: Perform an FTP PDU Capture 513 Task 9: Examine the Packet List Pane 514 Task 10: Examine Packet Details and Packet Byte Panes 514 Task 11: Perform an HTTP PDU Capture 515 Task 12: Examine the Packet List Pane 515 Task 13: Examine the Packet Details and Bytes Panes 515 Task 14: Analyze the Capture 515 Task 15: Reflection 517 Chapter 2 Labs: Exploring the Enterprise Network Infrastructure 519 Lab 2-1: Configuring Basic Routing and Switching (2.3.5) 520 Task 1: Connect PC1 to the Switch 521 Task 2: Perform an Initial Configuration on the Switch 521 Task 3: Configure the Switch Management Interface on VLAN 1 522 Task 4: Verify Configuration of the Switch 522 Task 5: Perform Basic Configuration of Router R1 522 Task 6: Configure Interfaces and Static Routing on Router R1 524 Task 7: Connect PC2 to Router R2 524 Task 8: Perform Basic Configuration of Router R2 524 Task 9: Connect the Internetwork 525 Task 10: Verify and Test the Configurations 525 Task 11: Remove Static Route and Configure a Routing Protocol on Router R1 526 Task 12: Remove Static Route and Configure a Routing Protocol on Router R2 526 Task 13: Verify and Test the Configurations 527 Task 14: Use the Switch Management Interface 528 Task 15: Reflection 530 Chapter 3 Labs: Switching in an Enterprise Network 531 Lab 3-1: Applying Basic Switch Security (3.1.4) 532 Task 1: Connect PC1 to the Switch 533 Task 2: Connect PC2 to the Switch 533 Task 3: Configure PC3 But Do Not Connect 533 Task 4: Perform an Initial Configuration on the Switch 533 Task 5: Configure the Switch Management Interface on VLAN 1 534 Task 6: Verify the Management LANs Settings 534 Task 7: Disable the Switch from Being an HTTP Server 535 Task 8: Verify Connectivity 535 Task 9: Record the Host MAC Addresses 535 Task 10: Determine What MAC Addresses the Switch Has Learned 536 Task 11: View the show mac-address-table Options 536 Task 12: Configure a Static MAC Address 536 Task 13: Verify the Results 536 Task 14: List Port Security Options 537 Task 15: Limit the Number of Hosts per Port 538 Task 16: Configure the Port to Shut Down if a Security Violation Occurs 538 Task 17: Show Port 0/4 Configuration Information 539 Task 18: Reactivate the Port 540 Task 19: Disable Unused Ports 540 Task 20: Reflection 540 Lab 3-2: Building a Switched Network with Redundant Links (3.2.3) 541 Task 1: Cable the Network 542 Task 2: Configure the Switches 542 Task 3: Configure the Hosts 542 Task 4: Verify Connectivity 543 Task 5: Examine Switch Hardware Information 543 Task 6: Examine the Spanning-Tree Tables on Each Switch 544 Task 7: Reassign the Root Bridge 545 Task 8: Look at the Spanning-Tree Table 546 Task 9: Verify the Running Configuration File on the Root Bridge 547 Task 10: Reflection 547 Lab 3-3: Verifying STP with show Commands (3.2.4) 548 Task 1: Cable the Network 549 Task 2: Configure the Switches 549 Task 3: Configure the Hosts 549 Task 4: Verify Connectivity 549 Task 5: Examine Switch Hardware Information 550 Task 6: Determine the Roles of Ports Participating in the Spanning Tree on Each Switch 550 Task 7: Create a Change in the Network Topology 551 Task 8: Examine the Spanning Tree on Each Switch 552 Task 9: Reflection 554 Lab 3-4: Configuring, Verifying, and Troubleshooting VLANs (3.3.2) 555 Task 1: Connect the Equipment 556 Task 2: Perform Basic Configuration on the Router 556 Task 3: Configure the Switch 556 Task 4: Verify Connectivity and Default VLAN Configuration 556 Task 5: Configure VLANs on S1 557 Task 6: Verify VLAN Segmentation 559 Task 7: Change and Delete VLAN Configurations 560 Task 8: Reflection 562 Lab 3-5: Creating VLANs and Assigning Ports (3.4.1) 563 Task 1: Connect the Equipment 564 Task 2: Perform Basic PC Configuration 564 Task 3: Configure Switch 1 564 Task 4: Verify Connectivity 566 Task 5: Reflection 566 Lab 3-6: Configuring a Trunk Port to Connect Switches (3.4.2) 567 Task 1: Connect the Equipment 568 Task 2: Perform Basic Configuration of Switch 1 and Switch 2 568 Task 3: Configure the Host PCs 568 Task 4: Verify Default VLAN Configuration and Connectivity 568 Task 5: Create and Verify VLAN Configuration 570 Task 6: Configure and Verify Trunking 571 Task 7: Observing the Default Trunking Behavior of Switches 573 Task 8: Reflection 573 Lab 3-7: Part A: Configuring Inter-VLAN Routing (3.4.3) 574 Task 1: Connect the Equipment 575 Task 2: Perform Basic Configurations on the Router 575 Task 3: Configure Router Fast Ethernet Connections for Each Network 576 Task 4: Configure Switch1 576 Task 5: Configure Switch2 576 Task 6: Configure Switch3 576 Task 7: Configure Host 1 576 Task 8: Configure Host 2 576 Task 9: Configure Host 3 577 Task 10: Configure the Server 577 Task 11: Verify Connectivity 577 Task 12: Reflection 579 Lab 3-7: Part B: Configuring Inter-VLAN Routing (3.4.3) 580 Task 1: Connect the Equipment 581 Task 2: Perform Basic Configurations on the Router 581 Task 3: Perform Basic Configurations on the Router 581 Task 4: Configure Switch1 582 Task 5: Configure VLAN Trunking on Switch 1 583 Task 6: Configure VTP on Switch1 584 Task 7: Configure Switch2 585 Task 8: Configure VLAN Trunking on Switch2 585 Task 9: Configure VTP on Switch 2 585 Task 10: Verify Connectivity 586 Task 11: Reflection 587 Challenge Lab 3-8: VTP Modes 588 Task 1: Connect the Equipment 589 Task 2: Perform Basic Configurations on the Router 589 Task 3: Configure VLAN Trunking on the Router 589 Task 4: Configure the S1 Switch 590 Task 5: Configure the S2 Switch 593 Task 6: Configure VLAN 19 on the VTP Server, S1 596 Task 7: Verify Switch 2 VLANs 596 Task 8: Configure Switches for VTP Transparent Mode 596 Task 9: Configure New VLANs 598 Task 10: Connect Hosts and Verify Connectivity 598 Task 11: Reflection 599 Chapter 4 Labs: Addressing in an Enterprise Network 601 Lab 4-1: Designing and Applying an IP Addressing Scheme (4.2.3) 602 Task 1: Cable the Network 603 Task 2: Configure the Router 603 Task 3: Configure the Switches 603 Task 4: Configure the Hosts 603 Task 5: Verify Connectivity 603 Task 6: Reflection 604 Challenge Lab 4-2: Calculating a Network IP Addressing Scheme 605 Task 1: Determine Management VLAN Requirements 605 Task 2: Determine VLAN 24 Requirements 606 Task 3: Determine VLAN 18 Requirements 607 Task 4: Determine VLAN 49 Requirements 607 Task 5: Reflection 608 Lab 4-3: Calculating a VLSM Addressing Scheme (4.2.5) 609 Task 1: Examine the Network Requirements 609 Task 2: Design an IP Addressing Scheme to Fit the Network Requirements 610 Task 3: Assign Subnets to the WAN Links Between Routers 611 Task 4: Assign IP Configurations to Router Interfaces 611 Task 5: Assign IP Configurations to Workstations 612 Task 6: Reflection 612 Challenge Lab 4-4: Calculating VLSM Network IP Addressing Schemes 614 Task 1: Determine Scenario 1 IP Addressing Using VLSM 614 Task 2: Determine Scenario 2 IP Addressing Using VLSM 617 Task 3: Determine Scenario 3 IP Addressing Using VLSM 619 Task 4: Reflection 621 Lab 4-5: Calculating Summarized Routes (4.3.3) 623 Task 1: Summarization for RouterC 624 Task 2: Summarization for RouterB 624 Task 3: Summarization for RouterA 624 Challenge Lab 4-6: Route Summarization Practice 625 Task 1: Scenario 1 Summarization 625 Task 2: Scenario 2 Summarization 626 Task 3: Scenario 3 Summarization 627 Task 4: Scenario 4 Summarization 629 Task 5: Reflection 630 Lab 4-7: Configuring a LAN with Discontiguous Subnets (4.3.4) 631 Task 1: Connect the Equipment 632 Task 2: Perform Basic Configurations on the Main Router 633 Task 3: Configure the Other Routers 633 Task 4: Configure the Hosts with the Proper IP Address, Subnet Mask, and Default Gateway 633 Task 5: Verify That the Network Is Functioning 633 Task 6: Examine the Routing Tables 634 Task 7: Identify and Attempt to Correct the Problem 634 Task 8: Verify That the Problem Has Been Corrected 635 Task 9: Reflection 636 Lab 4-8: Configuring and Verifying Static and Dynamic NAT (4.4.3) 637 Task 1: Connect the Equipment 638 Task 2: Perform Basic Configurations on the ISP Router 638 Task 3: Configure the Gateway Router 639 Task 4: Configure Switch1 639 Task 5: Configure the Hosts with the Proper IP Address, Subnet Mask, and Default Gateway 639 Task 6: Verify That the Network Is Functioning 639 Task 7: Create a Static Route 639 Task 8: Create a Default Route 640 Task 9: Define the Pool of Usable Public IP Addresses 640 Task 10: Define an Access List That Will Match the Inside Private IP Addresses 640 Task 11: Define the NAT Translation from the Inside List to the Outside Pool 640 Task 12: Specify the NAT Interfaces 641 Task 13: Configure Static Mapping 641 Task 14: Test the Configuration 641 Task 15: Verify NAT Statistics 642 Task 16: Reflection 642 Lab 4-9: Configuring and Verifying Dynamic NAT (4.4.3) 643 Task 1: Connect the Equipment 644 Task 2: Perform Basic Configurations on the ISP Router 644 Task 3: Configure the Gateway Router 644 Task 4: Configure Switch1 645 Task 5: Configure the Hosts with the Proper IP Address, Subnet Mask, and Default Gateway 645 Task 6: Verify That the Network Is Functioning 645 Task 7: Create a Static Route 645 Task 8: Create a Default Route 646 Task 9: Define the Pool of Usable Public IP Addresses 646 Task 10: Define an Access List That Will Match the Inside Private IP Addresses 646 Task 11: Define the NAT Translation from the Inside List to the Outside Pool 646 Task 12: Specify the NAT Interfaces 647 Task 13: Test the Configuration 647 Task 14: Verify NAT Statistics 648 Task 15: Reflection 648 Lab 4-10: Configuring and Verifying PAT (4.4.4) 649 Task 1: Connect the Equipment 650 Task 2: Perform Basic Configurations on the ISP Router 650 Task 3: Configure the Gateway Router 650 Task 4: Configure Switch1 650 Task 5: Configure the Hosts with the Proper IP Address, Subnet Mask, and Default Gateway 650 Task 6: Verify That the Network Is Functioning 651 Task 7: Create a Default Route 651 Task 8: Define the Pool of Usable Public IP Addresses 651 Task 9: Define an Access List That Will Match the Inside Private IP Addresses 651 Task 10: Define the NAT Translation from the Inside List to the Outside Pool 652 Task 11: Specify the Interfaces 652 Task 12: Generate Traffic from the Gateway to the ISP 652 Task 13: Verify That NAT/PAT Is Working 652 Task 14: Adjust the Gateway Configuration to Use an Alternate PAT Approach 653 Task 15: Reflection 653 Chapter 5 Labs: Routing with a Distance Vector Protocol 655 Lab 5-1: Designing and Creating a Redundant Network (5.1.2) 656 Task 1: Determine the Minimum Number of Links to Meet the Requirements 656 Task 2: Implement the Design 657 Task 3: Verify the Design 657 Task 4: Reflection 657 Lab 5-2: Configuring RIPv2 with VLSM and Default Route Propagation (5.2.3) 659 Task 1: Connect PC1 to the Equipment 660 Task 2: Perform Basic Configurations on the Routers 661 Task 3: Perform Basic Configurations on the Switches 661 Task 4: Configure the Hosts with the Proper IP Address, Subnet Mask, and Default Gateway 661 Task 5: Configure RIPv2 Routing 661 Task 6: Configure and Redistribute a Default Route for Internet Access 662 Task 7: Verify the Routing Configuration 662 Task 8: Verify Connectivity 663 Task 9: Reflection 663 Lab 5-3: Implementing EIGRP (5.4.1) 664 Task 1: Connect the Equipment 665 Task 2: Perform Basic Configurations on the Routers 665 Task 3: Configure EIGRP Routing with Default Commands 666 Task 4: Configure MD5 Authentication 666 Task 5: Reflection 667 Lab 5-4: EIGRP Configuring Automatic and Manual Route Summarization and Discontiguous Subnets (5.4.2) 668 Task 1: Connect the Equipment 669 Task 2: Perform Basic Configurations on the Routers 670 Task 3: Configure EIGRP Routing with Default Commands 670 Task 4: Verify the Routing Configuration 670 Task 5: Remove Automatic Summarization 671 Task 6: Verify the Routing Configuration 671 Task 7: Configure Manual Summarization 672 Task 8: Reflection 672 Chapter 6 Labs: Routing with a Link-State Protocol 673 Lab 6-1: Configuring and Verifying Single-Area OSPF (6.2.1) 674 Task 1: Connect the Equipment 675 Task 2: Perform Basic Configuration on R1 675 Task 3: Perform Basic Configuration on R2 675 Task 4: Perform Basic Configuration on S1 676 Task 5: Configure the Hosts with the Proper IP Address, Subnet Mask, and Default Gateway 676 Task 6: Verify That the Network Is Functioning 676 Task 7: Configure OSPF Routing on R1 677 Task 8: Configure OSPF Routing on R2 678 Task 9: Test Network Connectivity 679 Task 10: Reflection 679 Lab 6-2: Configuring OSPF Authentication (6.2.2) 680 Task 1: Connect the Equipment 681 Task 2: Perform Basic Configuration on Routers 681 Task 3: Configure and Verify OSPF on the Routers 681 Task 4: Configure and Verify OSPF Authentication 682 Task 5: Reflection 684 Lab 6-3: Controlling a DR/BDR Election (6.2.3.2) 685 Task 1: Connect the Equipment 686 Task 2: Perform Basic Configuration on the Routers 686 Task 3: Configure Single-Area OSPF Routing on the Routers 686 Task 4: Verify Current OSPF Operation 686 Task 5: Configure Router Loopback Interfaces 688 Task 6: Use Router Interface Priority to Determine DR Election 689 Task 7: Reflection 692 Lab 6-4: Configuring OSPF Parameters (6.2.3.5) 693 Task 1: Connect the Equipment 694 Task 2: Perform Basic Configuration on the Routers 694 Task 3: Configure Single-Area OSPF Routing on the Routers 694 Task 4: Verify Current OSPF Operation 694 Task 5: Configure Serial Interface Bandwidth Settings 697 Task 6: Use OSPF Cost to Determine Route Selection 698 Task 7: Reflection 699 Lab 6-5 Part A: Configuring and Verifying Point-to-Point OSPF (6.2.4) 700 Task 1: Connect the Equipment 702 Task 2: Perform Basic Configurations on the Routers 702 Task 3: Configure the Router Interfaces 702 Task 4: Verify IP Addressing and Interfaces 702 Task 5: Configure Ethernet Interfaces of PC1, PC2, and PC3 702 Task 6: Configure OSPF on R1 702 Task 7: Configure OSPF on R2 703 Task 8: Configure OSPF on R3 703 Task 9: Configure OSPF Router IDs 704 Task 10: Verify OSPF Operation 708 Task 11: Examine OSPF Routes in the Routing Tables 709 Task 12: Configure OSPF Cost 710 Task 13: Reflection 713 Lab 6-5 Part B: Configuring and Verifying Multiaccess OSPF (6.2.4) 714 Task 1: Connect the Equipment 715 Task 2: Perform Basic Configurations on the Routers 715 Task 3: Configure and Activate Ethernet and Loopback Addresses 715 Task 4: Verify IP Addressing and Interfaces 715 Task 5: Configure OSPF on the DR Router 716 Task 6: Configure OSPF on the BDR Router 717 Task 7: Configure OSPF on the DRother Router 718 Task 8: Use the ip ospf priority interface Command to Determine the DR and BDR 719 Task 9: Reflection 721 Lab 6-6: Configuring and Propagating an OSPF Default Route (6.3.1) 722 Task 1: Connect the Equipment 723 Task 2: Perform Basic Configurations on the Routers 723 Task 3: Configure the ISP Router 724 Task 4: Configure the Area 0 OSPF Routers 724 Task 5: Configure Hosts with Proper IP Address, Subnet Mask, and Default Gateway 725 Task 6: Verify Connectivity 725 Task 7: Configure OSPF Routing on Both Area 0 Routers 725 Task 8: Test Network Connectivity 725 Task 9: Observe OSPF Traffic 726 Task 10: Create a Default Route to the ISP 726 Task 11: Verify the Default Static Route 726 Task 12: Verify Connectivity from the R2 Router 726 Task 13: Verify Connectivity from the R1 Router 727 Task 14: Redistribute the Static Default Route 727 Task 15: Reflection 727 Lab 6-7 Configuring OSPF Summarization (6.3.2) 728 Task 1: Connect the Equipment 729 Task 2: Perform Basic Configurations on the Routers 730 Task 3: Perform Basic Configurations on the Switches 730 Task 4: Configure Hosts with Proper IP Address, Subnet Mask, and Default Gateway 730 Task 5: Configure OSPF Routing with Default Summarization 730 Task 6: Configure and Redistribute a Default Route for Internet Access 731 Task 7: Verify the Routing Configuration 731 Task 8: Verify Connectivity 732 Task 9: Compute OSPF Summarization 732 Task 10: Speculating on Summarization Effects on Routing Tables 732 Task 11: Reflection 733 Chapter 7 Labs: Implementing Enterprise WAN Links 735 Lab 7-1: Configuring and Verifying a PPP Link (7.2.3) 736 Task 1: Connect the Equipment 737 Task 2: Perform Basic Configuration on R1 737 Task 3: Perform Basic Configuration on R2 737 Task 4: Show the Details of Serial 0/0/0 Interface on R1 737 Task 5: Show the Details of Serial 0/0/0 Interface on R2 738 Task 6: Turn On PPP Debugging 738 Task 7: Change the Encapsulation Type 738 Task 8: Show the Details of Serial 0/0/0 Interface on R1 740 Task 9: Show the Details of Serial 0/0/0 Interface on R2 740 Task 10: Verify That the Serial Connection Is Functioning 740 Task 11: Reflection 740 Lab 7-2: Configuring and Verifying PAP and CHAP Authentication (7.2.5) 742 Task 1: Connect the Equipment 743 Task 2: Perform Basic Configuration on R1 743 Task 3: Perform Basic Configuration on R2 743 Task 4: Configure PPP Encapsulation on Both R1 and R2 743 Task 5: Verify PPP Encapsulation on R1 and R2 743 Task 6: Verify That the Serial Connection Is Functioning 743 Task 7: Configure PPP PAP Authentication on R1 with PAP 744 Task 8: Verify That the Serial Connection Is Functioning 744 Task 9: Configure PPP PAP Authentication on R2 with PAP 744 Task 10: Turn On PPP Debugging 745 Task 11: Verify That the Serial Connection Is Functioning 745 Task 12: Remove PAP from R1 and R2 745 Task 13: Configure PPP CHAP Authentication on R1 746 Task 14: Configure PPP CHAP Authentication on R2 746 Task 15: Verify That the Serial Connection Is Functioning 747 Task 16: Verify the Serial Line Encapsulation on R1 747 Task 17: Verify the Serial Line Encapsulation on R2 748 Task 18: Reflection 749 Chapter 8 Labs: Filtering Traffic Using Access Control Lists 751 Lab 8-1: Configuring and Verifying Standard ACLs (8.3.3) 752 Task 1: Connect the Equipment 753 Task 2: Perform Basic Configuration on R1 753 Task 3: Perform Basic Configuration on R2 753 Task 4: Perform Basic Configuration on S1 753 Task 5: Configure the Host with an IP Address, Subnet Mask, and Default Gateway 753 Task 6: Configure RIP and Verify End-to-End Connectivity in the Network 754 Task 7: Configure and Test a Standard ACL 754 Task 8: Test the ACL 755 Task 9: Reflection 757 Lab 8-2: Planning, Configuring, and Verifying Extended ACLs (8.3.4) 758 Task 1: Connect the Equipment 759 Task 2: Perform Basic Configuration on R1 759 Task 3: Perform Basic Configuration on R2 759 Task 4: Perform Basic Configuration on S1 760 Task 5: Configure the Hosts with an IP Address, Subnet Mask, and Default Gateway 760 Task 6: Configure RIP and Verify End-to-End Connectivity in the Network 760 Task 7: Configure Extended ACLs to Control Traffic 760 Task 8: Test the ACL 762 Task 9: Configure and Test the ACL for the Next Requirement 762 Task 10: Reflection 763 Lab 8-3: Configuring and Verifying Extended Named ACLs (8.3.5) 764 Task 1: Connect the Equipment 765 Task 2: Perform Basic Configuration on R1 765 Task 3: Perform Basic Configuration on R2 765 Task 4: Perform Basic Configuration on S1 765 Task 5: Configure the Hosts with an IP Address, Subnet Mask, and Default Gateway 766 Task 6: Verify That the Network Is Functioning 766 Task 7: Configure Static and Default Routing on the Routers 767 Task 8: Configure and Test a Simple Named Standard ACL 767 Task 9: Create and Test a Named Extended ACL 768 Task 10: Edit a Named Standard ACL 768 Task 11: Reflection 769 Lab 8-4: Configuring and Verifying VTY Restrictions (8.3.6) 770 Task 1: Connect the Equipment 771 Task 2: Perform Basic Configuration on R1 771 Task 3: Perform Basic Configuration on R2 771 Task 4: Perform Basic Configuration on S1 and S2 772 Task 5: Configure the Hosts with an IP Address, Subnet Mask, and Default Gateway 772 Task 6: Configure Dynamic Routing on the Routers 772 Task 7: Verify Connectivity 772 Task 8: Configure and Test an ACL That Will Limit Telnet Access 773 Task 9: Create VTY Restrictions for R2 773 Task 10: Reflection 773 Lab 8-5: Configuring an ACL with NAT (8.4.3) 774 Task 1: Connect the Equipment 775 Task 2: Perform Basic Configuration on R1 775 Task 3: Perform Basic Configuration on R2 775 Task 4: Perform Basic Configuration on S1 776 Task 5: Configure the Hosts with an IP Address, Subnet Mask, and Default Gateway 776 Task 6: Configure Static and Default Routes on the Routers 776 Task 7: Verify That the Network Is Functioning 776 Task 8: Configure NAT and PAT on R1 776 Task 9: Test and Verify the Configuration 777 Task 10: Configure and Apply an ACL Designed to Filter Traffic from One Host 777 Task 11: Test the Effects of the ACL on Network Traffic 777 Task 12: Move the ACL and Retest 778 Task 13: Reflection 778 Lab 8-6: Configuring and Verifying ACLs to Filter Inter-VLAN Traffic (8.4.5) 779 Task 1: Connect the Equipment 781 Task 2: Perform Basic Configuration on R1 781 Task 3: Configure R1 to Support Inter-VLAN Traffic 781 Task 4: Perform Basic Configuration on S1 782 Task 5: Create, Name, and Assign Ports to Three VLANs on S1 782 Task 6: Create the Trunk on S1 783 Task 7: Configure the Hosts 783 Task 8: Verify That the Network Is Functioning 783 Task 9: Configure, Apply, and Test an Extended ACL to Filter Inter-VLAN Traffic 784 Task 10: Reflection 784 Lab 8-7: Configuring ACLs and Verifying with Console Logging (8.5.1) 785 Task 1: Connect the Equipment 786 Task 2: Perform Basic Configuration on R1 787 Task 3: Perform Basic Configuration on R2 787 Task 4: Perform Basic Configuration on S1 787 Task 5: Configure the Hosts with the Proper IP Address, Subnet Mask, and Default Gateway 787 Task 6: Configure and Apply ACLs 787 Task 7: Reflection 790 Lab 8-8: Configuring ACLs and Recording Activity to a Syslog Server (8.5.2) 791 Task 1: Connect the Equipment 792 Task 2: Perform Basic Configuration on R1 793 Task 3: Perform Basic Configuration on R2 793 Task 4: Perform Basic Configuration on S1 793 Task 5: Configure the Hosts with the Proper IP Address, Subnet Mask, and Default Gateway 793 Task 6: Configure and Apply ACLs 793 Task 7: Configure the Syslog Service on H2 794 Task 8: Configure the Router to Properly Use the Syslog Service 795 Task 9: Reflection 796 Chapter 9 Labs: Troubleshooting an Enterprise Network 797 Lab 9-1: Troubleshooting RIPv2 Routing Issues (9.3.1) 798 Task 1: Connect the Equipment 799 Task 2: Load the Preconfigurations for R1 and R2 799 Task 3: Configure the Hosts with an IP Address, Subnet Mask, and Default Gateway 800 Task 4: Check Connectivity Between Hosts H1 and H2 800 Task 5: Show the Routing Table for Each Router 801 Task 6: Verify That Routing Updates Are Being Sent 801 Task 7: Show the Routing Tables for Each Router 802 Task 8: Show the RIP Routing Table Entries for Each Router 802 Task 9: Test Network Connectivity 803 Task 10: Reflection 803 Lab 9-2: Troubleshooting OSPF Routing Issues (9.3.3) 804 Task 1: Connect the Equipment and Configure the Hosts 806 Task 2: Load the Preconfiguration on R1 806 Task 3: Load the Preconfiguration on R2 806 Task 4: Load the Preconfiguration on R3 806 Task 5: Troubleshoot Router R1 Issues 806 R1 Troubleshooting Review 809 Task 6: Troubleshoot Router R3 Issues 809 Task 7: Troubleshoot Router R2 Issues: Part A 811 Task 8: Troubleshoot Router R2 Issues: Part B 814 Task 9: Reflection 816 Lab 9-3: Troubleshooting Default Route Redistribution with EIGRP (9.3.4) 818 Task 1: Connect the Equipment 819 Task 2: Load the Preconfigurations for R1, R2, and ISP 819 Task 3: Configure the Hosts with an IP Address, Subnet Mask, and Default Gateway 820 Task 4: Check Connectivity Between Hosts H1 and H2 821 Task 5: Show the Routing Tables for Each Router 821 Task 6: Verify That Routing Updates Are Being Sent 822 Task 7: Show Routing Tables for Each Router 822 Task 8: Show EIGRP Topology Table Entries for Each Router 823 Task 9: Show EIGRP Traffic Entries for R1 823 Task 10: Test Network Connectivity 824 Task 11: Reflection 824 Lab 9-4: Troubleshooting OSPF Default Route Redistribution (9.3.4) 825 Task 1: Connect the Equipment 826 Task 2: Perform Basic Configuration on R1 826 Task 3: Perform Basic Configuration on the GW Router 826 Task 4: Perform Basic Configuration on the ISP 827 Task 5: Configure the Hosts with an IP Address, Subnet Mask, and Default Gateway 827 Task 6: Configure Default Routing 827 Task 7: Troubleshooting Default Routing 829 Task 8: Reflection 833 Lab 9-5: Troubleshooting WAN and PPP Connectivity (9.4.2) 834 Task 1: Connect the Equipment 835 Task 2: Load the Preconfiguration on R1 835 Task 3: Load the Preconfiguration on R2 835 Task 4: Troubleshoot R1 835 Task 5: Show the Details of Serial Interface 0/0/0 on R2 836 Task 6: Turn on PPP Debugging 837 Task 7: Show the Details of the Configuration on R2 837 Task 8: Verify That the Serial Connection Is Functioning 837 Task 9: Reflection 838 Lab 9-6: Troubleshooting ACL Configuration and Placement (9.5.2) 839 Task 1: Connect the Equipment 841 Task 2: Load the Preconfiguration on ISP 841 Task 3: Load the Preconfiguration on HQ 842 Task 4: Configure Hosts H1 and H2 842 Task 5: Configure the Web Server Host H3 842 Task 6: Troubleshoot the HQ Router and Access List 101 842 Task 7: Troubleshoot the HQ Router and Access List 102 844 Task 8: Troubleshoot the HQ Router and Access List 111 846 Task 9: Troubleshoot the HQ Router and Access List 112 847 Task 10: Troubleshoot the HQ Router and Access List 121 849 Task 11: Reflection 850 Chapter 10 Capstone Project: Putting It All Together 851 Part A: Review the Work Order and Develop the VLSM Subnet Scheme 853 Task 1: Review the Customer Work Order and Proposed Network 853 ABC-XYZ-ISP Inc
854 Official Work Order 854 Task 2: Develop the Network Addressing Scheme 855 Task 3: Determine the IP Addresses to Use for Device Interfaces 859 Part B: Physically Construct the Network and Perform Basic Device Configuration 860 Task 1: Build the Network and Connect the Cables 860 Task 2: Configure the HQ Router 860 Task 3: Configure the Remote Office 2 Router R2 861 Task 4: Configure the Remote Office 2 Switch S1 861 Task 5: Configure the Remote Office 2 Switch S2 862 Task 6: Configure the Remote Office 2 Switch S3 863 Task 7: Configure the Host IP Addresses 864 Task 8: Verify the Device Configurations and Basic Connectivity 864 Part C: Routing, ACLs, and Switch Security Configuration 865 Task 1: Configure Routing for HQ and R2 865 Task 2: Configure NAT Overload (PAT) on HQ 866 Task 3: Configure Switch Port Security 867 Task 4: Verify the Overall Network Connectivity Before Applying ACLs 869 Task 5: Configure ACL Security on HQ and R2 869 Appendix B Lab Equipment Interfaces and Initial Configuration Restoration 873 Router Interface Summary 873 Erasing and Reloading the Router 874 Erasing and Reloading the Switch 874 SDM Router Basic IOS Configuration 876
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