1---2name: azure-defender-for-iot3description: Expert knowledge for Azure Defender For Iot development including troubleshooting, best practices, decision making, architecture & design patterns, limits & quotas, security, configuration, integrations & coding patterns, and deployment. Use when deploying OT sensors, configuring micro agents, setting up traffic mirroring, or integrating with Sentinel/SIEM, and other Azure Defender For Iot related development tasks. Not for Azure Defender For Cloud (use azure-defender-for-cloud), Azure Security (use azure-security), Azure External Attack Surface Management (use azure-external-attack-surface-management), Azure Sentinel (use azure-sentinel).4---5# Azure Defender For Iot Skill67This skill provides expert guidance for Azure Defender For Iot. Covers troubleshooting, best practices, decision making, architecture & design patterns, limits & quotas, security, configuration, integrations & coding patterns, and deployment. It combines local quick-reference content with remote documentation fetching capabilities.89## How to Use This Skill1011> **IMPORTANT for Agent**: Use the **Category Index** below to locate relevant sections. For categories with line ranges (e.g., `L35-L120`), use `read_file` with the specified lines. For categories with file links (e.g., `[security.md](security.md)`), use `read_file` on the linked reference file1213> **IMPORTANT for Agent**: If `metadata.generated_at` is more than 3 months old, suggest the user pull the latest version from the repository. If `mcp_microsoftdocs` tools are not available, suggest the user install it: [Installation Guide](https://github.com/MicrosoftDocs/mcp/blob/main/README.md)1415This skill requires **network access** to fetch documentation content:16- **Preferred**: Use `mcp_microsoftdocs:microsoft_docs_fetch` with query string `from=learn-agent-skill`. Returns Markdown.17- **Fallback**: Use `fetch_webpage` with query string `from=learn-agent-skill&accept=text/markdown`. Returns Markdown.1819## Category Index2021| Category | Lines | Description |22|----------|-------|-------------|23| Troubleshooting | L37-L48 | Diagnosing and fixing Defender for IoT micro agent and OT sensor issues, understanding/handling security and health alerts, and validating sensor/agent installation and configuration. |24| Best Practices | L49-L56 | Best practices for securing IoT/OT with Defender for IoT: using hub security recommendations, CIS benchmark guidance, and planning OT monitoring topology and sensor placement. |25| Decision Making | L57-L68 | Guidance on planning Defender for IoT deployments: choosing OT traffic mirroring, appliances, licenses, partner integrations, billing, hybrid/air-gapped setups, and on-premises to cloud transitions. |26| Architecture & Design Patterns | L69-L75 | Architectural guidance for connecting OT/ICS sensors to Azure, using sample OT network topologies, and aligning Defender for IoT deployment with Purdue model layers. |27| Limits & Quotas | L76-L84 | Info on OT trial setup, supported/retiring features, appliance catalog and requirements, and Defender for IoT data retention and storage limits. |28| Security | L85-L103 | Securing Defender for IoT OT environments: auth, RBAC/roles, SSO, certificates, Zero Trust, alert workflows/response, and auditing user and programming activity. |29| Configuration | L104-L135 | Configuring Defender for IoT agents/sensors: micro agent twins, dependencies, alerts, OT sensor settings, traffic mirroring, connectivity, monitoring methods, and threat intel updates. |30| Integrations & Coding Patterns | L136-L163 | Integrating Defender for IoT with SIEMs, firewalls, ServiceNow, Sentinel, OT sensors, and micro agents, plus using APIs, playbooks, and workbooks to automate alerts and manage inventory/vulnerabilities. |31| Deployment | L164-L187 | Planning and deploying Defender for IoT OT sensors: hardware/VM options, appliance-specific guides, traffic mirroring, onboarding, activation, and moving IoT security resources across regions. |3233### Troubleshooting34| Topic | URL |35|-------|-----|36| Use Defender micro agent security alerts and remediation guidance | https://learn.microsoft.com/en-us/azure/defender-for-iot/device-builders/concept-agent-based-security-alerts |37| Use Defender for IoT Hub built-in and custom alerts | https://learn.microsoft.com/en-us/azure/defender-for-iot/device-builders/concept-security-alerts |38| Use ThreadX Defender micro agent alerts and recommendations | https://learn.microsoft.com/en-us/azure/defender-for-iot/device-builders/concept-threadx-security-alerts-recommendations |39| Troubleshoot Microsoft Defender for IoT micro agent issues | https://learn.microsoft.com/en-us/azure/defender-for-iot/device-builders/troubleshoot-defender-micro-agent |40| Investigate and remediate Defender for IoT security alerts | https://learn.microsoft.com/en-us/azure/defender-for-iot/device-builders/tutorial-investigate-security-alerts |41| Troubleshoot Microsoft Defender for IoT OT sensors | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/how-to-troubleshoot-sensor |42| Validate Defender for IoT OT sensor installation health | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/ot-deploy/post-install-validation-ot-software |43| Interpret Defender for IoT sensor health messages | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/sensor-health-messages |4445### Best Practices46| Topic | URL |47|-------|-----|48| Apply Defender for IoT Hub security recommendations | https://learn.microsoft.com/en-us/azure/defender-for-iot/device-builders/concept-recommendations |49| Investigate CIS benchmark-based Defender recommendations | https://learn.microsoft.com/en-us/azure/defender-for-iot/device-builders/how-to-investigate-cis-benchmark |50| Plan OT monitoring topology with Defender for IoT | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/best-practices/plan-corporate-monitoring |51| Prepare OT sites and sensor placement for Defender for IoT | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/best-practices/plan-prepare-deploy |5253### Decision Making54| Topic | URL |55|-------|-----|56| Choose OT traffic mirroring methods for Defender for IoT | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/best-practices/traffic-mirroring-methods |57| Decide on OT traffic mirroring methods for Defender for IoT | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/best-practices/traffic-mirroring-methods |58| Plan Defender for IoT billing and licensing | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/billing |59| Choose and plan Defender for IoT partner integrations | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/integrate-overview |60| Choose and extend Defender for IoT licenses | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/license-and-trial-license-extention |61| Select appropriate OT appliances for Defender for IoT | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/ot-appliance-sizing |62| Plan hybrid or air-gapped Defender for IoT deployments | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/ot-deploy/air-gapped-deploy |63| Transition Defender for IoT from on-premises to cloud | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/ot-deploy/transition-on-premises-management-console-to-cloud |6465### Architecture & Design Patterns66| Topic | URL |67|-------|-----|68| Select architectures to connect OT sensors to Azure | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/architecture-connections |69| Use sample OT network connectivity models for sensors | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/best-practices/sample-connectivity-models |70| Map Defender for IoT to Purdue OT architecture | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/best-practices/understand-network-architecture |7172### Limits & Quotas73| Topic | URL |74|-------|-----|75| Understand Defender for IoT feature support and retirement timelines | https://learn.microsoft.com/en-us/azure/defender-for-iot/device-builders/edge-security-module-deprecation |76| Set up Defender for IoT OT trial plan | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/getting-started |77| Review catalog of preconfigured OT monitoring appliances | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/ot-pre-configured-appliances |78| System requirements for Defender for IoT OT virtual appliances | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/ot-virtual-appliances |79| Understand Defender for IoT data retention limits | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/references-data-retention |8081### Security82| Topic | URL |83|-------|-----|84| Manage OT sensor authentication via Defender for IoT APIs | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/api/sensor-auth-apis |85| Meet SSL/TLS certificate requirements for OT sensors | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/best-practices/certificate-requirements |86| Analyze OT programming events for suspicious changes | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/how-to-analyze-programming-details-changes |87| Manage Defender for IoT alerts in Azure portal | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/how-to-manage-cloud-alerts |88| View and manage OT sensor alerts locally | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/how-to-view-alerts |89| Assign Azure RBAC roles for Defender for IoT | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/manage-users-portal |90| Manage on-premises users on OT network sensors | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/manage-users-sensor |91| Apply Zero Trust monitoring to OT networks | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/monitor-zero-trust |92| Create CA-signed SSL/TLS certificates for OT sensors | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/ot-deploy/create-ssl-certificates |93| Use Defender for IoT security recommendations to reduce risk | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/recommendations |94| Investigate and respond to OT alerts in Azure | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/respond-ot-alert |95| Map Azure RBAC roles for Defender for IoT | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/roles-azure |96| Configure on-premises roles for Defender for IoT | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/roles-on-premises |97| Configure SSO for Defender for IoT sensor console | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/set-up-sso |98| Audit user activity in Microsoft Defender for IoT | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/track-user-activity |99100### Configuration101| Topic | URL |102|-------|-----|103| Configure custom security alerts for Azure IoT Hub | https://learn.microsoft.com/en-us/azure/defender-for-iot/device-builders/concept-customizable-security-alerts |104| Configure Defender for IoT micro agent behavior via module twin | https://learn.microsoft.com/en-us/azure/defender-for-iot/device-builders/concept-micro-agent-configuration |105| Meet Linux dependency requirements for Defender micro agent | https://learn.microsoft.com/en-us/azure/defender-for-iot/device-builders/concept-micro-agent-linux-dependencies |106| Configure PAM on Linux to audit sign-in events for Defender | https://learn.microsoft.com/en-us/azure/defender-for-iot/device-builders/configure-pam-to-audit-sign-in-events |107| Configure DMI decoder and alternatives for Defender micro agent | https://learn.microsoft.com/en-us/azure/defender-for-iot/device-builders/how-to-configure-dmi-decoder |108| Configure Defender for IoT micro agent twin properties | https://learn.microsoft.com/en-us/azure/defender-for-iot/device-builders/how-to-configure-micro-agent-twin |109| Configure Defender micro agent for Eclipse ThreadX devices | https://learn.microsoft.com/en-us/azure/defender-for-iot/device-builders/how-to-threadx-security-module |110| Create and assign custom Defender for IoT device alerts | https://learn.microsoft.com/en-us/azure/defender-for-iot/device-builders/quickstart-create-custom-alerts |111| Configure Microsoft Defender for IoT agent-based solution | https://learn.microsoft.com/en-us/azure/defender-for-iot/device-builders/tutorial-configure-agent-based-solution |112| Create Defender for IoT micro agent module twin | https://learn.microsoft.com/en-us/azure/defender-for-iot/device-builders/tutorial-create-micro-agent-module-twin |113| Use Defender for IoT OT sensor CLI commands | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/cli-ot-sensor |114| Configure active monitoring methods for OT networks | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/configure-active-monitoring |115| Set up reverse DNS lookup for OT active monitoring | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/configure-reverse-dns-lookup |116| Configure OT sensor settings centrally from Azure portal | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/configure-sensor-settings-portal |117| Configure Windows Endpoint Monitoring for OT sensors | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/configure-windows-endpoint-monitoring |118| Configure OT sensor proxy connectivity to Azure | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/connect-sensors |119| Use local script to enrich Windows endpoint data | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/detect-windows-endpoints-script |120| Import supplemental OT device data into sensors | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/how-to-import-device-information |121| Maintain individual OT sensors via sensor console | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/how-to-manage-individual-sensors |122| Configure SNMP MIB monitoring for OT sensor health | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/how-to-set-up-snmp-mib-monitoring |123| Manage threat intelligence package updates on OT sensors | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/how-to-work-with-threat-intelligence-packages |124| Apply networking requirements for Defender for IoT sensors | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/networking-requirements |125| Allow OT sensor connectivity to Azure endpoints | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/ot-deploy/provision-cloud-management |126| Configure ERSPAN on Cisco for Defender for IoT | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/traffic-mirroring/configure-mirror-erspan |127| Configure ESXi vSwitch promiscuous mode for mirroring | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/traffic-mirroring/configure-mirror-esxi |128| Configure Hyper-V vSwitch promiscuous mode for mirroring | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/traffic-mirroring/configure-mirror-hyper-v |129| Configure Cisco RSPAN mirroring for Defender for IoT | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/traffic-mirroring/configure-mirror-rspan |130| Configure Cisco SPAN port mirroring for OT sensors | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/traffic-mirroring/configure-mirror-span |131132### Integrations & Coding Patterns133| Topic | URL |134|-------|-----|135| Provision Defender micro agent using IoT Hub DPS with X.509 | https://learn.microsoft.com/en-us/azure/defender-for-iot/device-builders/how-to-provision-micro-agent |136| Use Defender micro agent API for Eclipse ThreadX integration | https://learn.microsoft.com/en-us/azure/defender-for-iot/device-builders/threadx-security-module-api |137| Integrate OT sensor alert management APIs | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/api/sensor-alert-apis |138| Integrate OT sensor inventory management APIs | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/api/sensor-inventory-apis |139| Use OT sensor vulnerability management APIs | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/api/sensor-vulnerability-apis |140| Automate sensor disconnection alerts with Sentinel playbooks | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/automate-sensor-disconnection-alerts |141| Forward OT sensor alerts to partner systems | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/how-to-forward-alert-information-to-partners |142| Integrate Defender for IoT with ArcSight SIEM | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/integrations/arcsight |143| Send Defender for IoT alerts to LogRhythm | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/integrations/logrhythm |144| Send Defender for IoT alerts to RSA NetWitness | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/integrations/netwitness |145| Connect on-premises Defender for IoT to Sentinel (legacy) | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/integrations/on-premises-sentinel |146| Stream Defender for IoT cloud alerts to external SIEMs | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/integrations/send-cloud-data-to-partners |147| Configure legacy ServiceNow integration for Defender for IoT | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/integrations/service-now-legacy |148| Use Sentinel solution to detect IoT threats | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/iot-advanced-threat-monitoring |149| Connect Defender for IoT with Microsoft Sentinel | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/iot-solution |150| Access Defender for IoT data via REST APIs | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/references-work-with-defender-for-iot-apis |151| Integrate CyberArk with Defender for IoT for credential security | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/tutorial-cyberark |152| Integrate Forescout with Microsoft Defender for IoT | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/tutorial-forescout |153| Integrate Fortinet firewalls with Defender for IoT | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/tutorial-fortinet |154| Integrate Palo Alto firewalls with Defender for IoT | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/tutorial-palo-alto |155| Integrate IBM QRadar with Defender for IoT alerts | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/tutorial-qradar |156| Integrate ServiceNow Operational Technology Manager with Defender for IoT | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/tutorial-servicenow |157| Integrate Splunk with Microsoft Defender for IoT | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/tutorial-splunk |158| Visualize Defender for IoT data with Azure workbooks | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/workbooks |159160### Deployment161| Topic | URL |162|-------|-----|163| Move Defender for IoT iotsecuritysolutions resource across regions | https://learn.microsoft.com/en-us/azure/defender-for-iot/device-builders/how-to-region-move |164| Select OT monitoring appliances for Defender for IoT | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/appliance-catalog/ |165| Use Dell PowerEdge R350 for OT sensor deployments | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/appliance-catalog/dell-poweredge-r350-e1800 |166| Use Dell PowerEdge R360 for OT sensor deployments | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/appliance-catalog/dell-poweredge-r360-e1800 |167| Use Dell PowerEdge R660 for OT sensor deployments | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/appliance-catalog/dell-poweredge-r660 |168| Deploy Heptagon YB3x appliance for OT monitoring | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/appliance-catalog/heptagon-yb3x |169| Use HPE DL20 Gen 11 (4SFF) for SMB OT monitoring | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/appliance-catalog/hpe-proliant-dl20-gen-11 |170| Use HPE DL20 Gen 11 (NHP 2LFF) for SMB/L500 OT monitoring | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/appliance-catalog/hpe-proliant-dl20-gen-11-nhp-2lff |171| Use legacy HPE DL20 Gen10 for enterprise OT monitoring | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/appliance-catalog/hpe-proliant-dl20-legacy |172| Use HPE DL20 Gen10 Plus for enterprise OT monitoring | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/appliance-catalog/hpe-proliant-dl20-plus-enterprise |173| Use HPE DL20 Gen10 Plus (NHP 2LFF) for SMB/L500 OT | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/appliance-catalog/hpe-proliant-dl20-plus-smb |174| Deploy Defender for IoT on HPE ProLiant DL360 | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/appliance-catalog/hpe-proliant-dl360 |175| Deploy Defender for IoT on HPE ProLiant DL360 Gen 11 | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/appliance-catalog/hpe-proliant-dl360-gen11 |176| Deploy OT sensor as Hyper-V Gen 2 virtual appliance | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/appliance-catalog/virtual-sensor-hyper-v |177| Deploy OT sensor as VMware ESXi virtual appliance | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/appliance-catalog/virtual-sensor-vmware |178| Deploy YS-techsystems YS-FIT2 for OT monitoring | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/appliance-catalog/ys-techsystems-ys-fit2 |179| Onboard OT sensors to Defender for IoT in Azure | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/onboard-sensors |180| Configure and activate Defender for IoT OT sensors | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/ot-deploy/activate-deploy-sensor |181| Install and initially configure OT sensor software | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/ot-deploy/install-software-ot-sensor |182| Understand Defender for IoT OT deployment phases | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/ot-deploy/ot-deploy-path |183| Deploy OT sensor with correct traffic mirroring | https://learn.microsoft.com/en-us/azure/defender-for-iot/organizations/traffic-mirroring/set-up-traffic-mirroring |
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