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Realtime-Aware Control Unit Network Attachment Module

Authors:
Rainer Falk
Steffen Fries

Keywords: security; device authentication; real-time; network access authentication; firewall

Abstract:
Information security is gaining increasingly more importance for real-time industrial automation networks. Protection is not only needed against attacks originating from external networks connected as remote data access, but also from potential attacks originating from locally connected devices connected during regular operation. Relevant use cases comprise local service access and plug-and-play of automation components. A conventional firewall filtering is not sufficient as it filters allowed network traffic depending on the contents of data packets, but it is not aware of specific real-time restrictions that have to be obeyed within an industrial automation network. For these reasons, a solution is required allowing to connect uncontrolled resp. untrusted devices with a real-time automation network segment in a secure way. This paper describes the general concept for a network filtering device that supports real-time criteria for making filtering decisions.

Pages: 29 to 34

Copyright: Copyright (c) IARIA, 2012

Publication date: August 19, 2012

Published in: conference

ISSN: 2162-2116

ISBN: 978-1-61208-209-7

Location: Rome, Italy

Dates: from August 19, 2012 to August 24, 2012