Deploying Identity and Mobility Services within a ...

1 Deploying Identity and Mobility Services within a Converged Plantwide Ethernet Architecture Design and Implementation GuideFebruary 2018 Document Reference Number: ENET-TD008B-EN-PiiDeploying Identity and Mobility Services within a Converged Plantwide Ethernet ArchitectureENET-TD008B-EN-PPrefaceConve rged Plantwide Ethernet (CPwE) is a collection of tested and validated architectures that are developed by subject matter authorities at cisco and Rockwell Automation. The testing and validation follow the cisco Validated Design (CVD) and cisco Reference Design (CRD) methodologies. The content of CPwE, which is relevant to both operational technology (OT) and informational technology (IT) disciplines, consists of documented architectures, best practices, guidance and configuration settings to help manufacturers with the design and deployment of a scalable, reliable, secure and future-ready plant-wide industrial network infrastructure.

2 CPwE can also help manufacturers achieve cost reduction benefits using proven designs that can facilitate quicker deployment while helping to minimize risk in Deploying new IoT (IIoT) offers the promise of business benefits through the use of innovative technology such as Mobility , collaboration, analytics, and cloud-based Services . The challenge for manufacturers is to develop a balanced security stance to take advantage of IIoT innovation while maintaining the integrity of industrial security best practices. Deploying Identity and Mobility Services within a Converged Plantwide Ethernet Architecture CVD (CPwE Identity and Mobility Services ), which is documented in this Deploying Identity and Mobility Services within a Converged Plantwide Ethernet Architecture Design and Implementation Guide (DIG), outlines several security and Mobility architecture use cases, with cisco Identity Services engine (ISE), for designing and Deploying mobile devices, with FactoryTalk applications, throughout a plant-wide Industrial Automation and Control System (IACS) network infrastructure.

3 CPwE Identity and Mobility Services was tested and validated by cisco Systems and Rockwell OrganizationThis document contains the following chapters and appendices:ChapterDescriptionChapter 1, CPwE Identity and Mobility Services Overview Presents introduction to CPwE Identity and Mobility Services architecture, Secure Access Control, and Unified Network Access Policy Management for CPwE Identity and Mobility 2, CPwE Identity and Mobility Services Design Considerations Presents an overview of CPwE Identity and Mobility Services Technology, wireless and wired access use case overview, design and deployment considerations, and overview of FactoryTalk mobile IACS Identity and Mobility Services within a Converged Plantwide Ethernet ArchitectureENET-TD008B-EN-PPrefaceFor More InformationFor More InformationMore information on CPwE Design and Implementation Guides can be found at the following URLs: Rockwell Automation site: cisco site.

4 Release of the CPwE architecture focuses on EtherNet/IP , which uses the ODVA, Inc. Common Industrial Protocol (CIP ) and is ready for the Industrial Internet of Things (IIoT). For more information on EtherNet/IP, see the following URL: 3, Configuring the Infrastructure Describes how to configure CPwE Identity and Mobility Services infrastructure based on the design considerations of the previous chapters, covering the configuration of the wired and wireless network infrastructure, network Services , cisco ISE, and network and application 4, Troubleshooting the Infrastructure Describes cisco ISE and wireless infrastructure A, References List of references for CPwE design and implementation guides for network infrastructure Services and B, Test Hardware and Software Hardware and software components used in CPwE Identity and Mobility Services C, Acronyms and Initialisms List of acronyms and initialisms used in this D, About the cisco Validated Design (CVD) Program Describes the cisco Validated Design (CVD)

5 Process and the distinction between CVDs and cisco Reference Designs (CRDs.)ChapterDescriptionCHAPTER1-1 Deploying Identity and Mobility Services within a Converged Plantwide Ethernet ArchitectureENET-TD008B-EN-P1 CPwE Identity and Mobility Services OverviewThis chapter includes the following major topics: Identity and Mobility Services Architecture Introduction, page 1-1 Secure Access Control, page 1-2 Unified Network Access Policy Management for CPwE, page 1-4 CPwE Identity and Mobility Services CVD, page 1-6 Identity and Mobility Services Architecture IntroductionThe prevailing trend in Industrial Automation and Control System (IACS) networking is the convergence of technology, specifically IACS operational technology (OT) with information technology (IT). Converged Plantwide Ethernet (CPwE) helps to enable IACS network technology convergence through the use of standard Ethernet, Internet Protocol (IP), network Services , security Services , and EtherNet/IP.

6 A converged IACS network technology helps to enable the Industrial Internet of Things (IIoT).IIoT offers the promise of business benefits through the use of innovative technology such as Mobility , collaboration, analytics, and cloud-based Services . The challenge for manufacturers is to develop a balanced security stance to take advantage of IIoT innovation while maintaining the integrity of industrial security best practices. Business practices, corporate standards, security policies and procedures, application requirements, industry security standards, regulatory compliance, risk management policies, and overall tolerance to risk are all key factors in determining the appropriate security access methods to the plant-wide industrial network expand, the complexity of managing network access security and controlling unknown risks continues to increase.

7 With a growing demand for in-plant access by trusted industry partners (for example, system integrator, OEM, or vendor), IACS applications within the CPwE architecture (Figure 1-1) face continued security threats. A holistic industrial security stance is necessary in order to help protect the integrity of safety and security best practices while also helping to enable Identity and Mobility Services . No single product, technology, or methodology can fully secure plant-wide architectures. Protecting IACS assets requires a holistic defense-in-depth security approach that addresses internal and external security threats. This approach uses multiple layers of defense (administrative, technical, and physical), using diverse technologies for threat detection and prevention at separate IACS levels, by applying policies and procedures that address different types of threats.

8 The CPwE Industrial Security Framework (Figure 1-2), which applies a holistic defense-in-depth approach, is aligned to industrial 1-2 Deploying Identity and Mobility Services within a Converged Plantwide Ethernet ArchitectureENET-TD008B-EN-PChapter 1 CPwE Identity and Mobility Services OverviewSecure Access Controlsecurity standards such as IEC-62443 (formerly ISA99) Industrial Automation and Control Systems (IACS) Security and NIST 800-82 Industrial Control System (ICS) management and security of the evolving coexistence of technologies within the plant require a different approach. CPwE uses the cisco Identity Services engine (ISE) to support centrally managed secure wired computer or wireless mobile device (computer, tablet, smartphone) access to the IACS networks by plant personnel and trusted release of CPwE Identity and Mobility Services outlines several security and Mobility architecture use cases, with cisco ISE, for designing and Deploying mobile devices, with FactoryTalk software applications, throughout a plant-wide IACS network infrastructure.

9 CPwE Identity and Mobility Services is brought to market through a strategic alliance between cisco Systems and Rockwell 1-1 CPwE ArchitectureSecure Access ControlAs the number of known and unknown mobile devices (computer, tablet, smartphone) connecting to the IACS network continues to increase, methods for managing disparate security solutions and mitigating risks continue to mature. Physical security is no longer adequate to prevent attempts to access an IACS network. With the continued proliferation of trusted partner mobile device connectivity and the already constrained plant-wide operational resources, the potential impact of failing to identify and remediate security threats introduces significant risk to plant-wide operations. Protecting IACS assets from mobile devices requires a Physical or Virtualized Servers FactoryTalk Application Servers and Services Platform Network & Security Services DNS,AD, DHCP, Identity Services (AAA) Storage ArrayRemote AccessServerPhysical or Virtualized Servers Patch Management AV Server Application Mirror Remote Desktop Gateway ServerDistributionSwitch StackCell/Area Zone - Levels 0 2 Redundant Star Topology - Flex Links ResiliencyUnified Wireless LAN(Lines, Machines, Skids, Equipment)Cell/Area Zone - Levels 0 2 Linear/Bus/Star TopologyAutonomous Wireless LAN(Lines, Machines, Skids, Equipment)IndustrialDemilitarized Zone(IDMZ)Enterprise ZoneLevels 4-5 Industrial ZoneLevels 0 3(Plant-wide Network) CoreSwitchesPhoneControllerCameraSafety ControllerSoft StarterCell/Area Zone - Levels 0 2 Ring Topology - Device Level Ring (DLR)

10 ProtocolUnified Wireless LAN(Lines, Machines, Skids, Equipment)Plant Firewalls Active/Standby Inter-zone traffic segmentation ACLs, IPS and IDS VPN Services Portal and Remote Desktop Services proxySafetyI/OInstrumentationLevel 3 - Site Operations(Control Room)HMIA ctiveAPSSID5 GHzWGBS afetyI/OControllerWGBLWAPSSID5 GHzStandbyWirelessLAN Controller (WLC)Cell/Area ZoneLevels 0 2 Cell/Area ZoneLevels 0 2 DriveDistributionSwitch StackWide Area Network (WAN)Data Center - Virtualized Servers ERP - Business Systems Email, Web Services Security Services - Active Directory (AD), Identity Services (AAA) Network Services DNS, DHCP Call Manager EnterpriseIdentity ServicesIdentity ServicesExternal DMZ/ FirewallCloudAccessSwitchesAccessSwitche sIFWIFWD riveI/OI/ODriveI/OI/OI/OveI/OI/OI/OI/OI/ ORobotServoDriveIESIESIESIESIESIESIESIES IESIESCAPWAPIESIESIESIESIESIESIESIESIESI ESIES377620 CAPWAPCAPWAP 1-3 Deploying Identity and Mobility Services within a Converged Plantwide Ethernet ArchitectureENET-TD008B-EN-PChapter 1 CPwE Identity and Mobility Services OverviewSecure Access Controlcentrally manageable defense-in-depth security approach to help with threat detection and prevention.