Definitive guide to understanding how to formulate an IPv6 address

Question

For fun, I\'d like to better understand the building blocks or elements that are within an IPv6 address.

Here are the basics, from my understanding:

• IPv6 a

Answer 1

IPv6 addresses with zone ID has a unique notation though its not specific to the address itself. In a system with multiple IPv6 enabled interfaces the link local address has to be disambiguated in some way. Its done using the "%" notation.

FE80::AA%eth0 refers to the link local address reachable through the eth0 interface. It can be an interface index in some plaforms, FE80::AA%10