This is a universally administered unicast address with a registered vendor prefix.
MAC address3C:78:95:FF:FF:FF
OUI3C:78:95
Vendor address10 Mauchly Irvine CA US 92618
Block range3C:78:95:00:00:00– 3C:78:95: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-643E:78:95:FF:FE:FF:FF:FF
Possible IPv6 link-local derivationfe80::3e78:95ff: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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