Notes
EUI-64
What is EUI-64
Extended Unique Identifier EUI-64 (Extended Unique Identifier) is a method we can use to automatically configure IPv6 host addresses. An IPv6 device will use the MAC address of its interface to generate a unique 64-bit interface ID. However, a MAC address is 48 bit and the interface ID is 64 bit.
How to calculate?
- FIrst 24 bits of MAC + “FF” + “FE” + last 24 bits of MAC
- Then 7th bit from left to right (0->) is flipped .
