Introduction xxii Chapter 1 WAN Concepts 1 WAN Technologies Overview 1 Network Types and Their Evolving WAN Needs 1 WAN Operations and Terminology 1 Selecting a WAN Technology 3 Varieties of WAN Link Connections 3 Private and Public WAN Access Options 4 Labs and Activities 6 1.0.1.2 Class Activity--Branching Out 7 Objective 7 Scenario 7 Resources 7 1.2.4.3 Lab--Researching WAN Technologies 9 Objectives 9 Background/Scenario 9 Required Resources 9 Part 1: Investigate Dedicated WAN Technologies and Providers 9 Part 2: Investigate a Dedicated Leased Line Service Provider in Your Area 10 Reflection 12 1.3.

1.1 Class Activity--WAN Device Modules 13 Objective 13 Scenario 13 Resources 13 Directions 13 Chapter 2 Point-to-Point Connections 15 Serial Point-to-Point Overview 15 Serial Communications 15 WAN Protocols 15 HDLC Encapsulation 16 HDLC Configuration and Troubleshooting 16 Troubleshooting Serial Interfaces 16 PPP Operation 17 PPP Components 17 PPP Sessions 19 Configure PPP 21 Basic PPP Configuration with Options 21 PPP Authentication 23 PAP Configuration 24 CHAP Configuration 25 Packet Tracer Exercise 2-1: PPP Implementation 25 Troubleshoot WAN Connectivity 25 Labs and Activities 27 Command Reference 27 2.0.1.2 Class Activity--PPP Persuasion 28 Objectives 28 Scenario 28 Resources 28 2.1.2.5 Packet Tracer--Troubleshooting Serial Interfaces 29 Topology 29 Addressing Table 29 Objectives 29 Scenario 29 Part 1: Diagnose and Repair the Physical Layer 30 Part 2: Diagnose and Repair the Data Link Layer 30 Part 3: Diagnose and Repair the Network Layer 31 2.

3.2.6 Packet Tracer--Configuring PAP and CHAP Authentication 32 Topology 32 Addressing Table 32 Objectives 32 Background 33 Part 1: Review Routing Configurations 33 Part 2: Configure PPP as the Encapsulation Method 33 Part 3: Configure PPP Authentication 34 2.3.2.7 Lab--Configuring Basic PPP with Authentication 35 Topology 35 Addressing Table 35 Objectives 36 Background/Scenario 36 Required Resources 36 Part 1: Configure Basic Device Settings 36 Part 2: Configure PPP Encapsulation 37 Part 3: Configure PPP CHAP Authentication 46 Reflection 51 Router Interface Summary Table 51 2.4.1.

4 Packet Tracer--Troubleshooting PPP with Authentication 52 Topology 52 Addressing Table 52 Objectives 52 Scenario 53 Part 1: Diagnose and Repair the Physical Layer 53 Part 2: Diagnose and Repair the Data Link Layer 53 Part 3: Diagnose and Repair the Network Layer 55 2.4.1.5 Lab--Troubleshooting Basic PPP with Authentication 56 Topology 56 Addressing Table 56 Objectives 57 Background/Scenario 57 Required Resources 57 Part 1: Build the Network and Load Device Configurations 57 Part 2: Troubleshoot the Data Link Layer 60 Part 3: Troubleshoot the Network Layer 62 Router Interface Summary Table 63 2.5.1.1 Class Activity--PPP Validation 64 Objective 64 Scenario 64 Resources 64 2.5.

1.2 Packet Tracer--Skills Integration Challenge 66 Topology 66 Addressing Table 66 Background 67 Requirements 67 Chapter 3 Branch Connections 69 Broadband Connections 69 Cable 69 DSL 70 Broadband Wireless 71 Select a Broadband Solution Connection 72 PPPoE 72 PPPoE Overview 72 Configuring PPPoE 73 VPNs 74 Fundamentals of VPNs 74 Types of VPNs 75 GRE 76 Fundamentals of Generic Routing Encapsulation 76 Configuring GRE Tunnels 77 Packet Tracer Exercise 3-1: GRE Implementation 78 eBGP 79 BGP Overview 79 eBGP Branch Configuration 79 Packet Tracer Exercise 3-2: BGP Branch Configuration 80 Requirements 81 Labs and Activities 82 Command Reference 82 3.0.1.2 Class Activity--Broadband Varieties 83 Objective 83 Scenario 83 Resources 83 3.1.2.2 Lab--Researching Broadband Internet Access Technologies 84 Objectives 84 Background/Scenario 84 Required Resources 84 Part 1: Investigate Broadband Distribution 84 Part 2: Research Broadband Access Options for Specific Scenarios 87 Reflection 89 3.

2.2.7 Lab--Configuring a Router as a PPPoE Client for DSL Connectivity 90 Topology 90 Addressing Table 90 Objectives 90 Background/Scenario 90 &nbs.