What this means
The IEEE assigned the MA-L block 1CD11A 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 1C:D1:1A, it is Fortinet, Inc. hardware.
Frequently Asked Questions
Who owns MAC prefix 1CD11A?
1CD11A 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 1CD11A?
Any network device with a MAC address starting 1C:D1:1A was manufactured by or for Fortinet, Inc..