What is an industrial firewall?

An industrial firewall is a protective barrier composed of a combination of software and hardware devices, constructed at the boundary between internal and external networks, and between networks and the public internet. As the name suggests, an industrial firewall is designed specifically for industrial networks, capable of interpreting industrial protocols, and is targeted against industrial viruses; it generally employs a whitelist mechanism. A standard firewall, or what we commonly refer to as a network firewall, is primarily placed to isolate the internal and external networks and cannot interpret industrial protocols; it operates on a blacklist mechanism and requires regular updates to the virus database.

Industrial Firewall is a serial protection product for industrial control network security, designed to parse, identify, and control all data traffic passing through industrial control networks to resist attacks on industrial control equipment from both internal and external networks. The main functions of the Industrial Firewall include deep industrial protocol parsing, filtering, port scan protection, security auditing, malware protection, vulnerability protection, and access permission limitation.

Industrial firewalls come in two product forms: rail-mounted and rack-mounted.

1. Guided track: Compliant with German DIN track standards, easily deployable in stringent production environments.

2. Rack-mounted: Typically deployed in the server room of a factory.