Most IT firewalls today cannot protect against threats to industrial network traffic, which limits their ability to minimise security risks on the plant floor. The Allen-Bradley Stratix 5950 security appliance from Rockwell Automation incorporates new security technologies to help protect plant-floor systems.
The device uses Adaptive Security Appliance (ASA) firewall and FirePOWER technology to create a security boundary between cell/area zones or to help protect a single machine, line or skid. This supports compliance with IEC 62443. The device also uses deep-packet-inspection (DPI) technology. Developed in collaboration with Cisco, the DPI technology enables inspection of the Common Industrial Protocol (CIP) and other industrial protocols.
Divya Venkataraman, global product manager, Rockwell Automation, says: “Combining ASA firewall, FirePOWER and DPI technology gives IT professionals the granular visibility and control they need to protect industrial networks. With the Stratix 5950 appliance, users can now configure and enforce policies that help prevent potentially malicious firmware updates and program downloads. This helps enhance the integrity of plant-floor operations.”
An optional subscription licence is available with the Stratix 5950 security appliance. Similar to a PC-based, anti-virus service, subscribers will receive ongoing threat and application-signature updates to help protect against the latest known security threats.
The new appliance includes four 1-gigabit Ethernet ports, and is available with copper-and-fibre or copper-only, small form-factor pluggable (SFP) slot options. The industrially hardened device is IP30-rated and can withstand electrical shocks, surges and noise. It can operate in temperatures ranging from minus 40 to 60 degrees Celsius (minus 40 to 140 degrees Fahrenheit).
The Stratix 5950 security appliance is the first Rockwell Automation product offering with DPI technology, which was announced in April 2016 as part of the strategic alliance between Rockwell Automation and Cisco. Go to www.ra.rockwell.com for further information.