Protocols

1. Support
2. Proton VPN Features
3. Protocols

The two most common transmission protocols used to communicate over the Internet are: TCP – Transmission Control Protocol and UDP – User Datagram Protocol. Both TCP and UDP are built on top of the Internet Protocol (IP), and both send bits of data, k

1. Support
2. Proton VPN Features
3. Protocols

Learn how to switch protocols in the Proton VPN app. You can select from a range of strong protocols like WireGuard Smart, and Stealth.