Chapter 8. Routing for Branch Offices and Mobile Workers

This chapter provides information and commands concerning the following topics:

• Verifying existing services

  - Network Address Translation

  - Dynamic Host Control Protocol

  - Access control lists and firewalls

  - Policy-based routing and Web Cache Communication Protocol

  - Hot Standby Router Protocol

• Configuration example: DSL using PPPoE

  - Configure PPoE (External Modem)

  - Configure the Dialer Interface

  - Define Interesting Traffic and Specify Default Routing

  - Configure NAT Using an ACL

  - Configure NAT Using a Route Map

  - Configure DHCP Service

  - Apply NAT Programming

  - Verify a PPPoE Connection

• Configuring PPPoA

• Connecting a teleworker to a branch office VPN using CLI

• Configuring IPsec site-to-site VPNs using CLI

• Configuring GRE tunnels over IPsec