Optimizing OpenVPN Throughput

In the previous post, I talked about OpenVPN TCP and UDP tunnels and why you should not be using TCP. In this post, I’m going to talk about optimizing the said tunnels to get the most out of them.

OpenVPN - TCP or UDP tunneling?

Spoiler alert: You most likely would want to use UDP tunneling! An OpenVPN tunnel runs over IP and can encapsulates VPN traffic into either a UDP or a TCP connection. To understand the pros and cons of each, we first need to have an understanding of them both.