The OpenVPN protocol itself functions best over just the UDP protocol. Learn more about why we use both UDP and TCP here.

The same openvpn process can't listen on UDP and TCP sockets at the same time. You have two good options: use two tap interfaces for openvpn. Have two  May 19, 2020 OpenVPN comes in two main flavors: OpenVPN TCP and OpenVPN UDP. Not all VPN providers give you a choice between these two  Many are considered obsolete and not secure, which is why they are rarely used – like PPTP or L2TP, which we do not offer in any of our apps. VPN protocol vs. OpenVPN® can run over User Datagram Protocol (UDP) or Transmission Control Protocol (TCP) tunnel transports. This makes your web traffic indistinguishable  OpenVPN is a popular open-source software package used for VPN connections. It relies on UDP and  2 TCP/UDP packet format. The following texts extracted from the ssl.h header file in the OpenVPN source code is the constructed packet formats to help 

OpenVPN is a popular open-source software package used for VPN connections. It relies on UDP and 

OpenVPN: Difference between TCP and UDP . Open VPN is a type of software application. It helps to create P2P and S2S connection. P2P means point to point connection and S2S means site to site connection. These connections are set by implying VPN or Virtual Private Network. In Open VPN there are two types of protocols are used one is TCP and other is UDP. TCP means Transmission Control …

Jan 4, 2015 One thing I can't decide with OpenVPN is whether to use UDP or TCP for the tunnel. The online guides for this are nonsense, babbling about 

TCP vs UDP, OpenVPN vs TCP, UDP vs OpenVPN What is the difference, exactly? TCP is, in general, the most commonly used connection protocol on the   Aug 29, 2013 UDP VPN Service. Faster Speed – UDP VPN service offers significantly greater speeds than TCP. For this reason it is the preferred protocol when  Nov 27, 2017 Preferred – UDP VPN tunnels are the preferred OpenVPN connection method if your network supports it. Lower Reliability – On rare occasions  The difference between TCP vs. UDP. In the ExpressVPN app, OpenVPN is referred to as “UDP” or “TCP,” two internet protocols that can greatly affect