This is a universally administered unicast address with a registered vendor prefix.
MAC address0C:B4:EF:7F:FF:FF
OUI0C:B4:EF
Vendor address204 Building for Growth, Gumi Electronics&Information Technology Research Institute, 17 Cheomdangieop-1ro, Gumi Gyeongbuk KR
Block range0C:B4:EF:00:00:00– 0C:B4:EF:FF:FF:FF
Address capacity16,777,216
TransmissionUnicast: addressed to a single device
AdministrationUniversally administered: its prefix comes from a block registered through the IEEE Registration Authority
RandomizationNot randomized
Derived modified EUI-640E:B4:EF:FF:FE:7F:FF:FF
Possible IPv6 link-local derivationfe80::eb4:efff:fe7f:ffff

The EUI-64 and IPv6 link-local fields are a mathematical derivation from this MAC address. They don't confirm the device currently uses that IPv6 address.

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