This is a universally administered unicast address with a registered vendor prefix.
MAC address68:FF:7B:7F:FF:FF
OUI68:FF:7B
Vendor addressBuilding 24(floors 1,3,4,5)and 28(floors 1-4)Central Science and Technology Park,Shennan Road,Nanshan Shenzhen Guangdong CN 518057
Block range68:FF:7B:00:00:00– 68:FF:7B: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-646A:FF:7B:FF:FE:7F:FF:FF
Possible IPv6 link-local derivationfe80::6aff:7bff: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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