VPN Types Based on Encryption Versus No-Encryption
VPNs can be divided into various types based on how they are constructed or the goals they are constructed to achieve. This section looks at the various types of VPNs used in the industry today.
Based on the use of encryption or lack thereof, VPNs can be divided into two main categories: encrypted and nonencrypted.
Encrypted VPNs
Encrypted VPNs utilize various types of encryption mechanisms to secure the traffic flowing across the public network. This is generally done to allow the VPN traffic to traverse a publicly accessible network such as the Internet. A good example of such VPNs are those constructed using IPsec. IPsec sets up a VPN that encrypts traffic using an encryption algorithm for ...
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