Single interface may also have multiple IPv6 addresses of any type Unicast addresses may be used as an identifier for the node.Īll interfaces are required to have at least one Link-Local unicastĪddress (see Section 2.8 for additional required addresses). Interface belongs to a single node, any of that node's interfaces' IPv6 addresses of all types are assigned to interfaces, not nodes.Īn IPv6 unicast address refers to a single interface. 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. When this name is used with the term "ID" for In this document, fields in addresses are given a specific name, forĮxample, "subnet".
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). To the routing protocols' measure of distance).
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). Unicast: An identifier for a single interface. Interfaces (where "interface" is as defined in Section 2 of ). IPv6 addresses are 128-bit identifiers for interfaces and sets of Types of IPv6 addresses (unicast, anycast, and multicast). It includes the basic formats for the various 18 Appendix A: Creating Modified EUI-64 Format Interface Identifiers. IPv6 Addresses with Embedded IPv4 Addresses. RFC 4291 IPv6 Addressing Architecture February 2006ġ. This document obsoletes RFC 3513, "IP Version 6 Addressing Unicast addresses, anycast addresses, and multicast addresses, and an Model, text representations of IPv6 addresses, definition of IPv6 The document includes the IPv6 addressing This specification defines the addressing architecture of the IP Distribution of this memo is unlimited.Ĭopyright (C) The Internet Society (2006). Official Protocol Standards" (STD 1) for the standardization stateĪnd status of this protocol. Please refer to the current edition of the "Internet Internet community, and requests discussion and suggestions for This document specifies an Internet standards track protocol for the RFC 4291: IP Version 6 Addressing Architecture
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