• Chapter 1: Describing Network Requirements
• Chapter 2: Topologies for Teleworker Connectivity
• Chapter 3: Using Cable to Connect to a Central Site
• Chapter 4: Using DSL to Connect to a Central Site
• Chapter 5: Configuring DSL Access with PPPoE
• Chapter 6: Configuring DSL Access with PPPoA
• Chapter 7: DSL Connection Troubleshooting
• Chapter 8: The MPLS Conceptual Model
• Chapter 9: MPLS Architecture
• Chapter 10: Configuring Frame Mode MPLS
• Chapter 11: MPLS VPN Technologies
• Chapter 12: IPsec Overview
• Chapter 13: Site-to-Site VPN Operations
• Chapter 14: GRE Tunneling over IPsec
• Chapter 15: IPsec High Availability Options
• Chapter 16: Configuring Cisco Easy VPN
• Chapter 18: Cisco Device Hardening
• Chapter 19: Securing Administrative Access
• Chapter 20: Using AAA to Scale Access Control
• Chapter 21: Cisco IOS Threat Defense Features
• Chapter 22: Implementing Cisco IOS Firewalls
• Chapter 23: Implementing Cisco IDS and IPS

Chapter 2: Topologies for Teleworker Connectivity

Remote Connection Options

Traditional Layer 2 Connections

Layer 2 technologies include frame relay and ATM

Relatively secure (separate from the Internet), but not flexible

Not typically available to residential premises

Service Provider MPLS VPN

Requires a layer 2 connection to ride

Provides security and QoS

Site-to-site VPN over Public Internet

Most popular solution (most easily available, cheapest)

A secure layer 3 VPN is formed across existing public infrastructure

Infrastructure Options

• DSL
• Cable
• Fiber (limited availability)