A Virtual Private Network is a service that allows you to connect to the Internet via an encrypted tunnel to ensure your online privacy and protect your sensitive data. VPNs are commonly used to secure connections to public Wi-FI hotspots, hide IP addresses and make your browsing private.
A VPN protocol is a crucial mechanism that makes your connection to the VPN server possible. Here’s what protocols you may come across:
Is an open-source VPN protocol.
It’s fast, secure, and works best for long-distance connections.
Is another fast and secure VPN protocol. It works best in shorter distance connections.
Are outdated tunneling protocols, and we highly recommend not to use them. They can offer neither the security nor reliability of OpenVPN or IKEv2.
Is a security protocol that enables encryption, which is why it’s used in combination with outdated tunneling protocols such as LT2P.
SSL/TLS is used very commonly.
For example, in your browser! It can secure your connection to some degree.
Is a tunneling protocol used to connect from one VPN server to another. However, there are better (more secure and reliable) alternatives.