Accessing the WAN

Accessing the WANThis course discusses the WAN technologies and network services required by converged applications in enterprise networks. The course uses the Cisco Network Architecture to introduce integrated network services and explains how to select the appropriate devices and technologies to meet network requirements. Students learn how to implement and configure common data link protocols and how to apply WAN security concepts, principles of traffic, access control, and addressing services. Finally, students learn how to detect, troubleshoot, and correct common enterprise network implementation issues.


Students who complete Accessing the WAN will be able to perform the following functions:

Describe the impact of Voice Over IP and Video Over IP applications on a network
Identify and correct common network problems at layers 1, 2, 3, and 7 using a layered model approach
Interpret network diagrams
Describe the components required for network and Internet communications
Implement basic switch security measures such as port security, trunk access, and management VLANs
Explain the operation and benefits of DHCP and DNS
Configure, verify, and troubleshoot DHCP and DNS operations on a router
Describe current network security threats and explain how to implement a comprehensive security policy to mitigate common threats to network devices, hosts, and applications
Describe the functions of common security appliances and applications
Describe recommended security practices to secure network devices
Describe the purpose and types of access control lists (ACLs)
Configure and apply ACLs based on network filtering requirements
Configure and apply an ACLs to limit Telnet and SSH access to the router using the Security Device Manager command-line interface (SDM/CLI)
Verify, monitor, and troubleshoot ACLs in a network environment
Explain the basic operation of Network Address Translation (NAT)
Configure NAT for given network requirements using SDM/CLI
Troubleshoot NAT issues
Describe different methods for connecting to a WAN
Configure and verify a basic WAN serial connection
Configure and verify a Point-to-Point Protocol (PPP) connection between Cisco routers 
Configure and verify Frame Relay on Cisco routers
Troubleshoot WAN implementation issues
Describe the importance, benefits, role, impact, and components of VPN technology


Prerequisites: Network Fundamentals, Routing Protocols and Concepts, and LAN Switching and Wireless


Chapter 1. Introduction to WANs

1.0 Chapter Introduction
1.1 Providing Integrated Services to the Enterprise
1.2 WAN Technology Concepts
1.3 WAN Connection Options
1.4 Chapter Labs
1.5 Chapter Summary
1.6 Chapter Quiz

Chapter 2. PPP

2.0 Chapter Introduction
2.1 Serial Point-to-Point Links
2.2 PPP Concepts
2.3 Configuring PPP
2.4 Configuring PPP with Authentication
2.5 Chapter Labs
2.6 Chapter Summary
2.7 Chapter Quiz

Chapter 3. Frame Relay

3.0 Chapter Introduction
3.1 Basic Frame Relay Concepts
3.2 Configuring Frame Relay
3.3 Advanced Frame Relay Concepts
3.4 Configuring Advanced Frame Relay
3.5 Chapter Labs
3.6 Chapter Summary
3.7 Chapter Quiz

Chapter 4. Network Security

4.0 Chapter Introduction
4.1 Introduction to Network Security
4.2 Securing Cisco Routers
4.3 Secure Router Network Services
4.4 Using Cisco SDM
4.5 Secure Router Management
4.6 Chapter Labs
4.7 Chapter Summary
4.8 Chapter Quiz

Chapter 5. ACLs

5.0 Chapter Introduction
5.1 Using ACLs to Secure Networks
5.2 Configuring Standard ACLs
5.3 Configuring Extended ACLs
5.4 Configuring Complex ACLs
5.5 Chapter Labs
5.6 Chapter Summary
5.7 Chapter Quiz

Chapter 6. Teleworker Services

6.0 Chapter Introduction
6.1 Business Requirements for Teleworker Services
6.2 Broadband Services
6.3 VPN Technology
6.4 Chapter Summary
6.5 Chapter Quiz

Chapter 7. IP Addressing Services

7.0 Chapter Introduction
7.1 DHCP
7.2 Scaling Networks with NAT
7.3 IPv6
7.4 Chapter Labs
7.5 Chapter Summary
7.6 Chapter Quiz

Chapter 8. Network Troubleshooting

8.0 Chapter Introduction
8.1 Establishing the Network Performance Baseline
8.2 Troubleshooting Methodologies and Tools
8.3 Common WAN Implementation Issues
8.4 Network Troubleshooting
8.5 Chapter Labs
8.6 Chapter Summary
8.7 Chapter Quiz