What Is the Most Secure VPN Protocol?
VPN products vary greatly in convenience, efficiency, and security. If security is a serious concern, an organization needs to pay close attention to the protocols a service supports. Some widely used protocols have significant weaknesses, while others offer state-of-the-art security. The best of the lot today include OpenVPN and IKEv2. Understanding VPN protocols What’s called a VPN protocol is actually a collection of protocols. There are several functions which every VPN has to manage: – Tunnelling A VPN’s basic function is to deliver packets from one point to another without exposing them to anyone on the path in between. To do this, it encapsulates all data in a format which the client and server understand. The side sending the data puts it into the tunneling format, and the receiving side extracts it. – Encryption By itself, tunneling provides no protection. Anyone can extract the data. It also has to be encrypted over the transmission path. The receiving si...