As the Industrial Internet of Things (IIoT) trend continues to gather pace, more and more system operators want to control their industrial applications, such as automation, transportation, and energy over secure remote connections. The ability to be able to remotely monitor, maintain, and diagnose issues can push the boundaries of industrial manufacturing and significantly reduce operational costs. However, cybersecurity is a real concern for system operators when transmissions are conducted over open networks or the Internet. To ensure transmissions remain secure, a virtual private network (VPN) is often used to set up encrypted communication tunnels that provide secure remote access to applications. However, the requirements for secure remote access may vary depending on the application or industry. To build secure remote connections, network devices must comply with certain industry certifications. As a trusted partner in the automation industry, Moxa provides product solutions that meet industry requirements and simplify remote connections for Operation Technology (OT) engineers.
When accessing data remotely, transmissions must be encrypted.
The need for remote access has been increasing over the past few years as more and more remote sites require access to a central network. Due to the concern of a man-in-the-middle attack that could occur where someone steals or relays messages transmitted within the communications path, remote access should take place through an encrypted VPN tunnel.
The requirements of a VPN vary depending on the application.
A common occurrence is when system operators build site-to-site communications for remote sites, which requires an IPsec VPN server and client. Another frequently encountered scenario is when an engineer is outside the factory but needs to connect to the machines inside the factory for remote maintenance. For this, an OpenVPN is suggested in order to establish encrypted communications.
It is essential to ensure security without compromising reliability.
Devices that are deployed in industrial environments must be robust enough to withstand harsh environments. Therefore, network devices are required to comply with standards such as UL 508 for industrial control equipment and Class I Division 2 for the Oil & Gas industry. Finally, in order to enhance the reliability of the network, system operators also need redundancy in their networks.
Field-to-Site VPN Tunnel
Site-to-Stie VPN Tunnel
Cellular Site-to-Site VPN Tunnel
Industrial secure router with switch/firewall/NAT/VPN
Industrial secure router with firewall/NAT/VPN
Rugged LTE serial/Ethernet-to-cellular gateway