This is a universally administered unicast address with a registered vendor prefix.
MAC addressD0:C8:57:87:FF:FF
OUID0:C8:57
Vendor address14th Floor, Building 3, No. 89 Shengli Road, Jiangning Economic and Technological Development Zone Nanjing Jiangsu CN 211100
Block rangeD0:C8:57:80:00:00– D0:C8:57:8F: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-64D2:C8:57:FF:FE:87:FF:FF
Possible IPv6 link-local derivationfe80::d2c8:57ff:fe87: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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