This is a universally administered unicast address with a registered vendor prefix.
MAC address5C:85:7E:87:FF:FF
OUI5C:85:7E
Vendor address1-1827, East (LIANHANG building), chaichangtun village, Yongledian Town, Tongzhou District BeiJing BeiJing CN 250100
Block range5C:85:7E:80:00:00– 5C:85:7E: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-645E:85:7E:FF:FE:87:FF:FF
Possible IPv6 link-local derivationfe80::5e85:7eff: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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