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Ics 4

The document discusses ICS network architecture, emphasizing the importance of segmentation and segregation to enhance security against internet threats. It introduces the Purdue Enterprise Reference Architecture, highlighting modern adaptations that include external services and IIOT integration. Additionally, it outlines the benefits of Industry 4.0, such as increased efficiency and safety, while noting ongoing security concerns with IIOT devices.

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Waqar Roy
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27 views7 pages

Ics 4

The document discusses ICS network architecture, emphasizing the importance of segmentation and segregation to enhance security against internet threats. It introduces the Purdue Enterprise Reference Architecture, highlighting modern adaptations that include external services and IIOT integration. Additionally, it outlines the benefits of Industry 4.0, such as increased efficiency and safety, while noting ongoing security concerns with IIOT devices.

Uploaded by

Waqar Roy
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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ICS Networking Architecture:

Section 1: ICS Network Architecture

In ICS, networks are only designed to support vital processes and operations to keep the ICS
environment running efficiently.

The architecture shown above is a flat network architecture that can bring more threats
directly from the internet into the entire environment.
The second architecture can still be compromised if not secured carefully, and if the
implementations are not done with all factors kept in mind.

Secure way of ICS network architecture:


Segmentation shall be approached to keep things segmented from the main zone and the IT
router for general internet traffic.

Segregation:

A diode can be used in between to keep traffic only to one side when needed, and only for
getting the operations running efficiently without any interference or general traffic of IT.
This entire table of Network zones & cells can be really useful for you to understand what each
zone holds and how much traffic of network goes thru each one of them which can be a benefit
for you when implementing security measures.

Purdue Enterprise Reference Architecture:

Developed by the ISA 95 - The Purdue Reference Model 95.


Now, you’ll be able to understand the model thoroughly with your understanding with the
fundamentals, solid in your mind!

There’s a modern Purdue Model:

Also connected external services to the network, which was not a feature of the traditional
purdue architecture.
Process Control Network Firewall, and Passive OT sensors are the 2 new features in the
Modern Model.
IIOT is also implemented in the Purdue Model - Modern. Oftentimes, an expensive solution.

Section 3: Industry 4.0

4th industrial revolution - industry 4.0 - the idea of smart factories implementing IIOT, cloud,
smart systems, and AI/ML.
Also called the IT/OT Convergence idea, as they are being integrated and implemented
together in “some” modern Industrial 4.0 ideas.
IoT devices use embedded systems and the same WiFi, or other protocols like Bluetooth, for
communications with other devices.
They can also simplify complex operations and tasks in the ICS environments, as mentioned in
the image below.
The bigger, complex tasks can be handled efficiently with the IIoT devices in the ICS. But, the
security is always and remains a concern.
Benefits of Smart Factories:
●​ Increased Efficiency
●​ Error reduction
●​ Decreased downtime
●​ Increased Safety

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