Introduction to VPN Technology



The transition from a conventional business model to a hi-tech information framework has effected significant changes in the corporate world. Wide Area Networks (WAN) and/or the Internet are powerful tool that are a part of this transformation, increasing business communications at a rapid pace. Now that a major part of all businesses depend on WANs, reliability and security are key components that are considered essential. Providing security to the network is possible through Virtual Private Network (VPN) technology, which uses the shared public telecommunication infrastructure, such as the Internet, to provide remote offices or individual users with secure access to their organization’s network.


Internet has revolutionized the world and ushered in many changes in businesses practices, technology, and the interdependence between them. There has been an influx of many technological devices and concepts that are aimed at equipping businesses with continuous Internet connectivity, thereby setting up a regime where there will be no network outages that disrupt business. Recently coined terms such as broadband, WAN, LAN, VPN, Firewall, etc. all converge at one point – to cater to the goal of redundancy, reliability, security, and speed in WAN connectivity. A Dual WAN VPN is one of the concepts that add value to connectivity and data transmission, most of all enabling organizations to securely access the Internet for information.


The growing popularity of Internet in the last few decades has been instrumental in mobilizing wide-scale e-businesses and Internet driven personal lives characterized by emails, blogs, text messages etc. The underlying concept that powers the Internet is the WAN. A Wide Area Network (WAN) is a global concept that has gained prominence due to its inherent capacity to span a broad geographic area, enabling transmission of data through telecommunication carrier devices. The most common communication links include telephone lines, fiber optic lines, wireless, microwave links, and satellite channels. A WAN is the core element around which, today’s businesses revolve, in order to ensure business continuity.


The networking age is witnessing an immense influx of technology-based products and appliances for use in business and everyday applications. As the Internet is the medium that is widely used for ecommerce, education, entertainment, and other purposes, corporations and organizations are constantly looking towards strengthening and securing their Wide Area Networks (WANs). A Virtual Private Network (VPN) is a technological evolution that has, as its main purpose, transmitting secure communications over the public Internet.