This is a universally administered unicast address with a registered vendor prefix.
MAC address10:78:CE:FF:FF:FF
OUI10:78:CE
Vendor address#201 Daeheung Building, 265-18 Yangjae-dong Seoul KR 137130
Block range10:78:CE:00:00:00– 10:78:CE: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-6412:78:CE:FF:FE:FF:FF:FF
Possible IPv6 link-local derivationfe80::1278:ceff:feff: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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