implementation

This chapter shows how the facilities provided by IPSec can be used in practice to create secure VPNs. The examples use Cisco® routers and Windows® 2000/XP workstations. These devices have been chosen because they are widely used and most readers will have access to hardware similar to that discussed in the examples. Two common requirements are discussed: providing a secure VPN tunnel between two private networks, for example a remote site or office and a main campus, and providing a secure remote access service for staff working at home.