The selection of network security solution(s) is an integral part of the design, development and maintenance of a network security infrastructure to ensure confidentiality, integrity, and availability of mission critical information. The objective of this paper is to identify a process through which a systematically recommended network security solution can be selected based on an evaluation criterion that best secures Process Automation Networks (PANs). Cross team collaboration is essential to the success of the selection process. Representatives from Plant organizations. Information Technology and Central Engineering can participate in a group effort to develop unified evaluation criteria for network security systems that can be considered as a guideline to evaluate and select a network security product for PANs. This paper will highlight a step-by-step selection methodology developed from a user prospective, as a result of an evaluation initiative of various plant network firewall technologies for PANs.
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