
146 Part Two • IPv6 Protocols
8.2 Unicast Address Types
Several types of unicast addresses have been defined for use with IPv6.
Global unicast Formerly known as aggregatable global unicast, these
addresses can be routed across the global IPv6 Internet and are
globally unique.
Link local unicast These addresses are for addressing on a single link for
purposes such as auto-address configuration, neighbor discovery, or
when no routers are present. Packets sent to this address are never
supposed to be forwarded across local links.
Site local unicast These addresses are for addressing packets within an
entire site (or network or organization). Packets addressed ...