Building VPNs: With IPSec and MPLS - Chapter 1

Chapter 1 - The VPN Overview

This excerpt is reprinted with permission from McGraw-Hill, copyright 2003. For more information or to order the book, click here.

Assembling a fully functional IPSec or MPLS VPN isn't easy. With so little information available it can be like trying to build a bicycle when you have all the components, but no idea what the final product should look like. Only Building VPNs shows, in a clear, step-by-step fashion, how to build VPNs from scratch with IPSec and MPLS.

Chapter 1 addresses three types of VPNs: remote access, site-to-site, and firewall-based (a site-to-site variation). The variation between remote access and site-to-site VPNs will become more ambiguous as new devices such as hardware VPN clients, become more prevalent. These appear as a single device accessing the network, albeit there may be a network with several devices behind it. In all cases, the VPN comprises two endpoints that may be represented by routers, firewalls, client workstations, or servers.

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