This standard identifies specific configuration requirements within the relevant Internet Engineering Task Force (IETF) Request For Comments (RFC) for implementation of the Internet Protocol Security (IPSec) protocol suite within a utility control system. It is not intended to be a comprehensive guide to implementing IPSec. The primary goal in developing this standard is to promote interoperability between products developed by different vendors. It focuses on those configuration parameters needed to support the establishment and sustained operation of an IPSec Virtual Private Network (VPN) tunnel between two devices which have implemented IPSec conforming to this standard. A secondary goal of this standard is to minimize configuration errors involving IPSec implementations within utility control systems. The intent of this standard is to be product agnostic and applicable to any device (e.g. router, substation gateway, intelligent electronic device, etc.) within the utility control system as the end user deems necessary for their unique system architecture.