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mac-vendors-integration

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更新日2026年4月26日 19:43

MAC address OUI vendor lookup via Analysi mac_vendors integration for device identification during SOC investigations. Use when triaging alerts involving MAC addresses, identifying device manufacturers, detecting rogue/unauthorized hardware, or enriching network-layer IOCs with vendor context.

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MAC Vendors Integration

Resolve MAC addresses to device manufacturers via OUI lookup. Use during network-layer investigations to identify device types, detect virtualization (VMware, Hyper-V), spot IoT/OT hardware, or flag unknown vendors.

Reference Loading

Reference	Read when	Consult for
`references/actions-reference.md`	Calling any mac_vendors action	Parameters, return schemas, Cy examples, edge cases, format normalization
`references/investigation-patterns.md`	Building investigation workflows	Device classification, rogue device detection, MAC randomization handling, Cy task templates, multi-source corroboration

Decision Path

Single MAC lookup — call app::mac_vendors::lookup_mac(mac=addr), check vendor_found boolean
Batch MAC enrichment — iterate MACs in a for-in loop (auto-parallelized); deduplicate by OUI prefix to conserve rate limit
Device classification — map vendor string to device category (corporate, VM, IoT, networking) via LLM or keyword matching
Connectivity check — call app::mac_vendors::health_check() before batch operations

Guardrails

No reverse lookup: Cannot search by vendor name to find MAC ranges — only MAC-to-vendor direction.
OUI only: Returns the manufacturer registered to the OUI prefix — not device model, firmware, or serial number.
Rate limit: Free tier allows 1,000 requests/day. No rate-limit headers are returned — track usage in your workflow. Exceeding the limit causes errors (handle via try/catch).
No historical data: Returns current OUI registration only — cannot determine if a MAC prefix was reassigned.
MAC randomization: vendor_found: false is most commonly caused by randomized MACs (iOS 14+, Android 10+, Windows 10+), not rogue devices. See investigation-patterns.md § MAC Address Randomization before escalating.

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name	mac-vendors-integration
description	MAC address OUI vendor lookup via Analysi mac_vendors integration for device identification during SOC investigations. Use when triaging alerts involving MAC addresses, identifying device manufacturers, detecting rogue/unauthorized hardware, or enriching network-layer IOCs with vendor context.
version	0.1.0

MAC Vendors Integration

Reference Loading

Reference	Read when	Consult for
`references/actions-reference.md`	Calling any mac_vendors action	Parameters, return schemas, Cy examples, edge cases, format normalization
`references/investigation-patterns.md`	Building investigation workflows	Device classification, rogue device detection, MAC randomization handling, Cy task templates, multi-source corroboration

Decision Path

Single MAC lookup — call app::mac_vendors::lookup_mac(mac=addr), check vendor_found boolean
Batch MAC enrichment — iterate MACs in a for-in loop (auto-parallelized); deduplicate by OUI prefix to conserve rate limit
Device classification — map vendor string to device category (corporate, VM, IoT, networking) via LLM or keyword matching
Connectivity check — call app::mac_vendors::health_check() before batch operations

Guardrails

No reverse lookup: Cannot search by vendor name to find MAC ranges — only MAC-to-vendor direction.
OUI only: Returns the manufacturer registered to the OUI prefix — not device model, firmware, or serial number.
Rate limit: Free tier allows 1,000 requests/day. No rate-limit headers are returned — track usage in your workflow. Exceeding the limit causes errors (handle via try/catch).
No historical data: Returns current OUI registration only — cannot determine if a MAC prefix was reassigned.
MAC randomization: vendor_found: false is most commonly caused by randomized MACs (iOS 14+, Android 10+, Windows 10+), not rogue devices. See investigation-patterns.md § MAC Address Randomization before escalating.