HP-UX IPv6 Transport Administrator's Guide (September 2004)

IPv6 Addressing and Concepts
IPv6 Address Formats
Chapter 548
Address Scope
Link-local An IPv6 address used on a single link.
Global An IPv6 address that uniquely identifies a node on the
Internet such that packets can be routed to the node
from any other node on the Internet.
Address Type
Unicast Identifies a single interface. Notable unicast addresses
are:
Loopback ::1 Address internal to IPv6 stack
Unspecified :: Not a legally defined address
Anycast Identifies a group of interfaces, possibly belonging to
different nodes. A packet sent to an anycast address is
delivered to only one of the interfaces in the group.
Anycast addresses are currently not supported by the
HP-UX IPv6 software.
Multicast Identifies a group of interfaces, possibly belonging to
different nodes. A packet sent to a multicast address is
delivered to all the interfaces in this group.