As a query, the OID_GEN_VENDOR_ID OID specifies a three-byte IEEE-registered vendor code, followed by a single byte that the vendor assigns to identify a particular NIC.
- Windows Vista and later versions of Windows
- Windows XP
The IEEE code uniquely identifies the vendor and is the same as the three bytes appearing at the beginning of the NIC hardware address.
Vendors without an IEEE-registered code should use the value 0xFFFFFF.
Independent hardware vendor's filter drivers or intermediate drivers might query this OID.