Chapter 7. Virtual Private Network (VPN) Implementation Options

A Virtual Private Network (VPN) is defined loosely as a network in which customer connectivity amongst multiple sites is deployed on a shared infrastructure with the same access or security policies as a private network. With the recent advent of marketing activities surrounding the term VPNs, from new technologies supporting VPNs to a flurry of VPN-enabled products and services, you might think that the VPN concept is a major technology throughput. However, as is often the case, VPN is a concept that is more than 10-years old and is well known in the service provider market space.

The new technologies and products merely enable more reliable, scalable, and more cost-effective implementation ...

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