IEC 62443
IEC 62443-4-2:2019 technical security requirements for IACS components – IEC 62443

IEC 62443 CR 5.1: Network segmentation

What does CR 5.1 require?

The component must support a segmented network, through its interfaces and configuration, so that zones and conduits, laid out according to risk, can be built around it. No component enhancement: the IIC list notes that the physical segmentation, independence and isolation enhancements of SR 5.1 have no 4-2 counterpart; boundary protection sits in NDR 5.2.

Maintained by Gerard BlokdykControl text last updated

Other controls in IEC 62443-4-2:2019 technical security requirements for IACS components – IEC 62443

Query this from an agent

The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.