In Chapter 7, "Introduction to Cisco Routers," we focused on providing you with the essential skills you need to configure and maintain Cisco routers. This chapter covers enterprise-related configuration tasks such as
Controlling network traffic flow
Router link redundancy and backup
Network address translation
Tunnel (VPN) configuration
WAN interface configuration
Keep in mind that these services are not necessarily exclusive to enterprise networking, but they do represent, to many, the next step on the internetworking evolutionary ladder.