What this means
The IEEE assigned the MA-L block 000D81 to Pepperl+Fuchs GmbH. 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 00:0D:81, it is Pepperl+Fuchs GmbH hardware.
Frequently Asked Questions
Who owns MAC prefix 000D81?
000D81 is registered to Pepperl+Fuchs GmbH 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. Pepperl+Fuchs GmbH's block covers 16,777,216 addresses.
What devices use 000D81?
Any network device with a MAC address starting 00:0D:81 was manufactured by or for Pepperl+Fuchs GmbH.