The factory of the future is digital and networked. The Industrial Internet of Things (IIoT) and Industry 4.0 are a further optimization of processes and faster production cycles for production companies and critical infrastructures. Industry 4.0 refers to the current trend of automation and data communication in manufacturing technologies. It includes cyber-physical systems, the Internet of Things, cloud computing and cognitive computing. The basic principle of Industry 4.0 is that by connecting machines, work pieces and systems; businesses are creating intelligent networks along the entire value chain that can control each other autonomously. In an Industry 4.0 factory, components and systems are able to gain self-awareness and become self-predictive, which will provide management with more insight on the status of the factory.
Industrial Control Systems (ICS) are the nervous system of highly efficient manufacturing in Industry 4.0. They are also characterized by increasing complexity and links to networks outside the industrial environment (i.e. the internet). The key to efficient and secure manufacturing is effective management of the ICS and the maintenance of high network quality. Only those who ensure digital transparency can protect their production against technical malfunctions, network failures, and advanced cyber threats.
Rhebo Industrial Protector effectively controls, optimizes and protects complex ICS according to industry standards such as IEC 62443 and ISO 27001. Rhebo Industrial Protector monitors, analyzes and visualizes the complete data traffic in your ICS to the deepest content level. Individual commands between the components of the industrial control systems details are available and checked for changes. Rhebo Industrial Protector comprehensively detects and reports in real-time anomalies that could change or disrupt existing processes. As part of any defense-in-depth strategy, you gain 100% digital transparency and ability to react immediately to potential malfunctions before the supply processes are affected. Rhebo IIoT experts help networked industries to operate their control networks safely and without interference and to effectively implement their cyber security strategy.
Rhebo Industrial Protector comprehensively and non-intrusively monitors the communication in process control and network control systems using Garland Technology TAPs. Any event that can lead to disruptions are detected and reported by the automatic anomaly detection. Such anomalies include both security incidents and technical malfunctions that occur in everyday tele-control operations. Ultimately, Rhebo Industrial Protector ensures plant availability, data integrity and thus long- term security of supply operations.
Several advantages are realized with the Rhebo and Garland Technology combined solution:
Multiple links and speeds can be aggregated, filtered and load balanced out to one or many Rhebo sensors simultaneously using Garland Technology’s Advanced Aggregator. The Advanced Aggregator can be used to reduce the total number of sensors required in the environment and to establish greater control and visibility over your monitored network.

Using Rhebo Industrial Protector will:

Using Garland Technology’s passive TAPs and Advanced Aggregators, operators can collect every bit, byte and packet necessary with Rhebo Industrial Collector. Garland Technology devices guarantee complete passive listening with no impact on the Industrial Control Systems (ICS) network processes.
If the inline security tool goes off-line, the TAP will bypass the tool and automatically keep the link flowing. The Bypass TAP does this by sending heartbeat packets to the inline security tool. As long as the inline security tool is on-line, the heartbeat packets will be returned to the TAP, and the link traffic will continue to flow through the inline security tool.
If the heartbeat packets are not returned to the TAP (indicating that the inline security tool has gone off-line), the TAP will automatically 'bypass' the inline security tool and keep the link traffic flowing. The TAP also removes the heartbeat packets before sending the network traffic back onto the critical link.
While the TAP is in bypass mode, it continues to send heartbeat packets out to the inline security tool so that once the tool is back on-line, it will begin returning the heartbeat packets back to the TAP indicating that the tool is ready to go back to work. The TAP will then direct the network traffic back through the inline security tool along with the heartbeat packets placing the tool back inline.
Some of you may have noticed a flaw in the logic behind this solution! You say, “What if the TAP should fail because it is also in-line? Then the link will also fail!” The TAP would now be considered a point of failure. That is a good catch – but in our blog on Bypass vs. Failsafe, I explained that if a TAP were to fail or lose power, it must provide failsafe protection to the link it is attached to. So our network TAP will go into Failsafe mode keeping the link flowing.
Single point of failure: a risk to an IT network if one part of the system brings down a larger part of the entire system.
Heartbeat packet: a soft detection technology that monitors the health of inline appliances. Read the heartbeat packet blog here.
Critical link: the connection between two or more network devices or appliances that if the connection fails then the network is disrupted.