Industrial control system architecture overview
The following diagram depicts the recommended ICS network architecture. Fundamentally, it has not changed from what we discussed in the first edition of this book. The recommended architecture is based on the Purdue model (the Purdue model was discussed in detail in Chapter 1, Introduction and Recap of First Edition) but was updated to reflect current standards, industry best practices, and 10 years' worth of experience by this author designing, implementing, and maintaining secure and resilient industrial network architectures.
Rather than go over every section, zone, and area, here, we will look at the architecture from an implementation perspective. What kind of technology is behind setting up the segments, boundaries, and security controls?
Figure 2.1 – Complete view of the ICS architecture
The following sections will go cover the Enterprise and Industrial zones, as well as discussing the...
