What this means
The IEEE assigned the MA-L block 0021EA to Bystronic Laser AG. 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 00:21:EA, it is Bystronic Laser AG hardware.
Frequently Asked Questions
Who owns MAC prefix 0021EA?
0021EA is registered to Bystronic Laser AG 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. Bystronic Laser AG's block covers 16,777,216 addresses.
What devices use 0021EA?
Any network device with a MAC address starting 00:21:EA was manufactured by or for Bystronic Laser AG.