Function

• A Virtual Private Network often uses an existing public network to allow users to connect remotely. VPN users typically access the network via the Internet.
  
  

Types

• There are three types of Virtual Private Networks. These are Intranet VPN, which uses a LAN connection; Extranet VPN, in which several organizations work together to create a shared LAN-based connection; and Remote Access VPN, which enlists the services of a third-party provider.
  
  

Features

• When a Virtual Private Network is accessed via the Internet, Internet Protocol provides enhanced security features. This is imperative for businesses needing to protect data on a VPN.
  
  

Benefits

• Using a Virtual Private Network allows a business to cut costs on leased long distance phone lines as well as the cost of maintaining a server.
  
  

Considerations

• A Virtual Private Network requires understanding of network configurations, security and other networking considerations. A reliable Internet service provider is necessary, as well.