A virtual private network (VPN) is a way to use a public telecommunication infrastructure, such as the Internet, to provide remote offices or individual users with secure access to their organization's network. A virtual private network can be contrasted with an expensive system of owned or leased lines that can only be used by one organization. The goal of a VPN is to provide the organization with the same capabilities, but at a much lower cost.

Businesses that run their VPNs over a shared or public infrastructure enjoy the same security, quality of service (QoS), reliability, and manageability as they do in their own private networks. VPNs allow the clients to realize the cost advantages of shared network.

VPN goes that extra mile, eliminates geographical boundaries, to connect both local and international branches and companies regardless of the distance between them. It is the perfect solution for your corporate communications, yet at a minimal cost.

Service Features:

-Cost effective and Affordable any-to-any connectivity within the VPN.
-Wide range of access technologies and speeds (64Kbps – 155Mbps) to
 optimize the service for small, medium and large sites.
-Security and privacy equivalent to FR/ATM services.
-Easy integration of Access VPN, Extranets and Internet access.
-Future proof platform for Value Added Services & Fully managed service including the CPE.
-Cost advantages of a consolidated network (LAN, SNA, Voice, Internet
 and Video applications).
-IP addressing freedom.

The advantages of using VPN:

 Using VPN allows you to cut down your communications expenses both
 locally and internationally. Other benefits include” 
 Reducing traveling, fax and courier cost for remote users.
 Instant communications that helps to improve productivity.
 Possibility to convert your LAN to WAN.
 Improved security
 Providing global networking opportunities
 No additional cost for upgrading your company expands.

Types of VPN:

Remote Access: It is also known as Virtual Private Dial-up Network (VPDN), it is a connection established among remote locations. VPDN requires a Network Access Server (NAS), and users have to be provided with special software for their computer. Then the user can easily dial a local number to access the NAS and safely log-on to the network through the use of DDN connection with the available encryption on the router.

Extranet-based: It is a tailored net for linking your company with other closely related companies eg; partners, supplier or customers, is allows you to work more collaboratively with them.

Hardware Requirement:

Based on the type of VPN you want to establish, you will need the following components:
-Desktop software for each remote user.
-Dedicated hardware/Software such as firewalls and encryptions
-Dedicated VPN server for dial-up services.
-VPN network and policy management center.