This is a universally administered unicast address with a registered vendor prefix.
MAC address78:C4:AB:7F:FF:FF
OUI78:C4:AB
Vendor address4/F., Yuhua Building A, Yangmen Industrial Park, Shenzhen GuangDong CN 518055
Block range78:C4:AB:00:00:00– 78:C4:AB: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-647A:C4:AB:FF:FE:7F:FF:FF
Possible IPv6 link-local derivationfe80::7ac4:abff: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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