Low Cost Modbus-Filtering Firewall Combats Internet Threats

Release Adds Modbus TCP Filtering to PortBloque™ Family of Modbus Firewalls
 
 
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* Modbus TCP firewall

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* Industrial

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* Santa Ana - California - US

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* Products

SANTA ANA, Calif. - Dec. 11, 2019 - PRLog -- Sequi, a developer of cost-effective Modbus firewalls for industrial control networks, announced the release of the latest product to its PortBloque family. With the release of PortBloque E, Sequi is adding Ethernet firewall functionality and Modbus TCP/UDP deep packet inspection to filter and block harmful and unwanted Modbus traffic. These capabilities make the new PortBloque E the ideal choice for automation, utility, and energy operators looking to protect serial Modbus devices from Internet attacks.

The intuitive browser-based interface provides operators with unrivalled flexibility in customization. Operators can control Modbus traffic by slave IDs, function codes, and block commands that repeat too soon. Additionally, operators can define a permissible range of slave registers and values to prevent malicious memory access. The new offering also provides bidirectional conversion between Modbus RTU/ASCII and Modbus TCP/UDP.

"PortBloque E brings the benefit of remote access security to serial Modbus devices," said Dr. Tracy Amaio, vice president of Sequi," "so customers can feel at ease in bridging serial equipment, previously isolated, to the network."

PortBloque E comes in an all-metal chassis with an RS-232 port, fast Ethernet port, and a management port (RS-232). Logs for traffic and security violations are dashboard-viewable. PortBloque E is priced at $495 USD. For more information, visit http://sequi.com/portbloque-e.htm.

About Sequi

Sequi focuses on serving the needs of the rapidly growing security market for industrial control systems. The company is committed to delivering affordable, easy-to-use, high-quality products built on proven security technologies. Sequi is a privately held company founded in 1999. Learn more at www.sequi.com.

Sequi and PortBloque are trademarks of Sequi, Inc. All other trademarks are property of their respective owners.
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