This is a universally administered unicast address with a registered vendor prefix.
MAC addressE8:EF:22:FF:FF:FF
OUIE8:EF:22
Vendor address18 Runhuai Road, Lishui Zone Nanjing CN 211200
Block rangeE8:EF:22:00:00:00– E8:EF:22: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-64EA:EF:22:FF:FE:FF:FF:FF
Possible IPv6 link-local derivationfe80::eaef:22ff: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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