ComputerWeekly - Evolution of Internet Protocol Virtual Private Network

Many organisations today operate in complex, distributed environments that encompass multiple branch offices spread across diverse geographical locations, some of which may be subsidiaries or affiliated companies. For most of these, access to centralised IT resources is a must. And they also need to provide access to those IT resources for an expanding army of mobile workers and for external users. Remote access has become a fact of life. To provide secure remote access to employees - and increasingly to business partners, suppliers and users - Virtual Private Networks (VPN) has emerged as the technology of choice.