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OpenVPN over UDP (for open network)

OpenVPN runs by default uses UDP protocol (port 1194). If your network does not have the conditions of restriction (open network) for a variety of protocol and port, then you can use the configuration of PB over UDP. VPN via UDP VPN method is the fastest because the UDP packet has a low overhead. However, not all networks you use open access protocol UDP. Usually there are Firewall restrictions on where you are.

OpenVPN over TCP (for closed network)

OpenVPN can run as well as HTTPS access. If the condition of your network is behind a firewall or your network requires the use of a proxy to access the Internet, then we provide a configuration of the OpenVPN over HTTPS.

The difference in TCP and UDP

in contrast to TCP, UDP is connectionless and no reliability, windowing, and functions to ensure the data was received correctly. However, UDP also provides functionality that is similar to TCP, such as data transfer and multiplexing, but he did so with fewer additional bytes in the UDP header
. UDP do multiplexing UDP uses the same way as TCP. The only difference is the transport protocol that is used, i.e. the UDP. An application can open the same port number on a single host, but one using TCP and UDP use another one — it is not uncommon, but is allowed. If a service supports TCP and UDP, it uses the same value for the TCP and UDP port numbers.