What this means
The IEEE assigned the MA-L block D476A0 to Fortinet, Inc.. Every network interface they manufacture under this block has a MAC address beginning with these digits, followed by a unique per-device identifier. If a device on your network shows a MAC starting D4:76:A0, it is Fortinet, Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix D476A0?
D476A0 is registered to Fortinet, Inc. in the IEEE MA-L registry.
What does the MA-L registry type mean?
An MA-L assignment, the IEEE's original OUI format, gives the vendor the first three octets and 16,777,216 device addresses under them. Fortinet, Inc.'s block covers 16,777,216 addresses.
What devices use D476A0?
Any network device with a MAC address starting D4:76:A0 was manufactured by or for Fortinet, Inc..