This is a universally administered unicast address with a registered vendor prefix.
MAC address84:11:C2:9F:FF:FF
OUI84:11:C2
Vendor addressTeknopark ?stanbul, TGB, Sanayi Mah. Teknopark Bulvar?, No:1, Blok:1 Kat:2, Kurtköy-Pendik 34912, ?STANBUL Istanbul TR 34912
Block range84:11:C2:90:00:00– 84:11:C2:9F:FF:FF
Address capacity1,048,576
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-6486:11:C2:FF:FE:9F:FF:FF
Possible IPv6 link-local derivationfe80::8611:c2ff:fe9f: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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