Connecting programmable logic controllers (PLCs), human machine interfaces (HMIs), and other automation system components to the Industrial Internet of Things (IIoT) for remote access is important for many manufacturing plants, and to the machine builders providing equipment and services to these plants. For many applications, providing the desired level of cyber-security requires more than just a router, namely a VPN. When implementing an IIoT solution for remote access, a VPN not only provides the required security but also ability for customer to access all sites/devices remotely from anywhere in the world without the need of conventional old dial-up systems