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Vpn Exists For Virtual Private Network

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Introduction VPN stands for Virtual Private Network. It provides a private network across the public network (Internet). This allows the user to transmit and receive data to the private network across Internet, like it is being directly connected to it. VPN has the characteristics of point-to-point and private link. To resemble a point-to-point link, the data is sent along with the routing information necessary to reach the destination through the public network. Data is encrypted and only the users in the network can access the resources in it, which resembles the characteristics of a private connection. Data sent through the VPN is very secure, as it cannot be deciphered without the encrypted keys. In VPN, tunnel is the part of the connection where data is encapsulated and VPN connection is the part of the connection where the data is encrypted. Figure 1: VPN Connectivity Overview VPN helps users working remotely to connect to the company infrastructure securely. Although it establishes the connection across the public network, user is not aware of it as it looks like data is being sent over a dedicated link. VPN connection is like a Wide Area Network (WAN) between two areas. VPN is commonly used in the following modes, ● Remote Access across public network – This allows the users to connect to the private network from anywhere. Using this solution more employees can telecommute. The client connects to the public network first and initiates a connection with the VPN

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