IPv6 addresses are 128-bit identifiers for interfaces and sets of Types of IPv6 addresses (unicast, anycast, and multicast). Interfaces (where "interface" is as defined in Section 2 of ).
Unicast: An identifier for a single interface. Identified by that address (the "nearest" one, according A packet sent to anĪnycast address is delivered to one of the interfaces Unicast address is delivered to the interface identifiedĪnycast: An identifier for a set of interfaces (typicallyīelonging to different nodes). To the routing protocols' measure of distance). There are no broadcast addresses in IPv6, their function being Multicast address is delivered to all interfaces Multicast: An identifier for a set of interfaces (typicallyīelonging to different nodes). When this name is used with the term "ID" for In this document, fields in addresses are given a specific name, forĮxample, "subnet". In IPv6, all zeros and all ones are legal values for any field, (e.g., "subnet prefix"), it refers to all of the address from the Identifier after the name (e.g., "subnet ID"), it refers to theĬontents of the named field.
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