This recipe is not really about OpenVPN but more about how to use the network performance measurement tool
iperf in an OpenVPN setup. The
iperf utility can be downloaded from http://sourceforge.net/projects/iperf/ for Linux, Windows, and MacOS.
In this recipe, we will run
iperf outside of OpenVPN and over the VPN tunnel itself, after which the differences in performance will be explained.
We use the following network layout:
Set up the client and server certificates using the Setting up the public and private keys recipe from Chapter 2, Client-server IP-only Networks. For this recipe, the server computer ...