The interface ID identifies an interface of a particular node. IPv6 hosts can use the Neighbor Discovery protocol to automatically generate their own interface IDs. … Neighbor Discovery automatically generates the interface ID, based on the MAC or EUI-64 address of the host’s interface.

How do I find my IPv6 interface ID?

The second part of an IPv6 unicast or anycast address is typically a 64-bit interface identifier used to identify a host’s network interface. A 64-bit interface ID is created by inserting the hex value of FFFE in the middle of the MAC address of the network card.

What is the interface ID of the IPv6 address 2001?

What is the interface ID of the IPv6 address 2001:DB8::1000:A9CD:47FF:FE57:FE94/64? Explanation: The interface ID of an IPv6 address is the rightmost 64 bits, or last four hextets, of the address if no interface ID bits have been used for subnets.