July 2018
Intermediate to advanced
324 pages
9h 31m
English
Content preview from Practical Industrial Internet of Things Security
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ICS network components
Industrial control networks involve a lot of connectivity across the various levels of the control hierarchy, as shown in the following diagram:
Figure 1.6: Distributed ICS/SCADA connectivity diagram; Source: (NIST-800-82r2)
Field devices and sensors usually communicate with a Fieldbus controller, which can uniquely identify them. For long-distance SCADA communications, routers are used to connect the LAN and WAN segments. Network segregation strategies are implemented using industrial firewalls. Firewalls enable fundamental network-based access control of resources on a particular network segment. Furthermore, depending ...
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