List of VPN Protocols

This post summarizes the most common VPN (Virtual Private Network) protocols.

VPN protocol

VPN (Virtual Private Network) protocols:

  • PPTP
  • L2TP/IPsec
  • SSTP
  • IKEv2
  • OpenVPN


Point to Point Tunneling Protocol (PPTP).


Layer Two Tunneling Protocol (L2TP) is an extension of PPTP.

Internet Protocol Security (IPSec).


Secure Socket Tunneling Protocol (SSTP) is a protocol developed by Microsoft.


Internet Key Exchange version 2 (IKEv2).


OpenVPN is a tunneling protocol by the company of the same name.

VPN technologies

VPN technologies:

  • VRF
  • VRF-Lite (Multi-VRF)
  • VP6

What is NOT VPN?

SSL is a networking protocol that is used at the transport layer to provide a secure connection between the client and the server over the internet. The SSL connection is to an endpoint, not a whole network.

In conclusion SSL, is not a a VPN.

SSH is used for tunneling, not for VPN, and only works on the application layer (OSI layer 7).

External references

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