the percent % marks the start of its own identifier and its only locally significant

Link-local address start with

fe80::/10

next 54bits bits are set to zero

64bits as the interface ID fe80::/64

object is to identify link-local address

this is very accurate

n an IPv6 address with a /32 prefix, the first 32 bits are reserved for the network portion. This means the remaining 96 bits are available for the host (or interface) portion.