Firewall device creates its own rules

Creating cyber defense-in-depth often involves adding small firewall devices at internal levels of a control system. Now those devices can be smart enough to create their own firewall rules based on observation of traffic patterns. MTL Instruments and Byres Security Inc. have released a new loadable security module (LSM) for their Tofino industrial security device that reportedly discovers and ...

06/01/2008


Creating cyber defense-in-depth often involves adding small firewall devices at internal levels of a control system. Now those devices can be smart enough to create their own firewall rules based on observation of traffic patterns.

MTL Instruments and Byres Security Inc. have released a new loadable security module (LSM) for their Tofino industrial security device that reportedly discovers and identifies network devices and creates firewall rules to control the traffic flowing to them, all without risk to the industrial process. Known as the Tofino secure asset management module, it locates devices and generates rules by analyzing the traffic on the network.

The company says the new module provides a safe and secure means of locating what is on control system networks. Designed specifically for industrial control operations in critical industries such as oil and gas, manufacturing, utilities and power generation, the Tofino never probes the control devices. Instead, it listens for traffic and then uses special characterization techniques to determine the types of control devices on the network.

The module also guides the user while creating appropriate firewall rules to allow or block messages, based on what it has learned about the network traffic. Technical complexities such as IP addressing and TCP/UDP port numbers are managed behind the scenes, making firewall configuration easier for a controls professional.

In related news, Yokogawa Electric Corp. has chosen the Tofino as its first industrial firewall, using it on the Centum CS 3000 production control system and Stardom network-based control system.






No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Intelligent, efficient PLC programming: Cost-saving programming languages are available now; Automation system upgrades; Help from the cloud; Improving flow control; System integration tips
Smarter machines require smarter systems; Fixing PID, part 3; Process safety; Hardware and software integration; Legalities: Integrated lean project delivery
Choosing controllers: PLCs, PACs, IPCs, DCS? What's best for your application?; Wireless trends; Design, integration; Manufacturing Day; Product Exclusive
PLCs, robots, and the quest for a single controller; how OEE is key to automation solutions.
This article collection contains several articles on improving the use of PID.
Learn how Industry 4.0 adds supply chain efficiency, optimizes pricing, improves quality, and more.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

Special report: U.S. natural gas; LNG transport technologies evolve to meet market demand; Understanding new methane regulations; Predictive maintenance for gas pipeline compressors
Cyber security cost-efficient for industrial control systems; Extracting full value from operational data; Managing cyber security risks
Drilling for Big Data: Managing the flow of information; Big data drilldown series: Challenge and opportunity; OT to IT: Creating a circle of improvement; Industry loses best workers, again