This is a universally administered unicast address with a registered vendor prefix.
MAC address78:91:DE:FF:FF:FF
OUI78:91:DE
Vendor addressL203 Biguiyuan International Club, Beijiao Town, Shunde District Fo Shan Guangdong CN 528312
Country🇨🇳 China
Block range78:91:DE:00:00:00– 78:91:DE: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:91:DE:FF:FE:FF:FF:FF
Possible IPv6 link-local derivationfe80::7a91:deff: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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