draft-ietf-6man-rfc4291bis-05.txt   draft-ietf-6man-rfc4291bis-06.txt 
Network Working Group R. Hinden Network Working Group R. Hinden
Internet-Draft Check Point Software Internet-Draft Check Point Software
Obsoletes: 4291 (if approved) S. Deering Obsoletes: 4291 (if approved) S. Deering
Intended status: Standards Track Retired Intended status: Standards Track Retired
Expires: April 7, 2017 October 4, 2016 Expires: May 19, 2017 November 15, 2016
IP Version 6 Addressing Architecture IP Version 6 Addressing Architecture
draft-ietf-6man-rfc4291bis-05 draft-ietf-6man-rfc4291bis-06
Abstract Abstract
This specification defines the addressing architecture of the IP This specification defines the addressing architecture of the IP
Version 6 (IPv6) protocol. The document includes the IPv6 addressing Version 6 (IPv6) protocol. The document includes the IPv6 addressing
model, text representations of IPv6 addresses, definition of IPv6 model, text representations of IPv6 addresses, definition of IPv6
unicast addresses, anycast addresses, and multicast addresses, and an unicast addresses, anycast addresses, and multicast addresses, and an
IPv6 node's required addresses. IPv6 node's required addresses.
This document obsoletes RFC 4291, "IP Version 6 Addressing This document obsoletes RFC 4291, "IP Version 6 Addressing
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Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet- working documents as Internet-Drafts. The list of current Internet-
Drafts is at http://datatracker.ietf.org/drafts/current/. Drafts is at http://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
This Internet-Draft will expire on April 7, 2017. This Internet-Draft will expire on May 19, 2017.
Copyright Notice Copyright Notice
Copyright (c) 2016 IETF Trust and the persons identified as the Copyright (c) 2016 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of (http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents publication of this document. Please review these documents
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Interface ID as an opaque bit string without any internal structure. Interface ID as an opaque bit string without any internal structure.
Note that the uniqueness of interface identifiers is independent of Note that the uniqueness of interface identifiers is independent of
the uniqueness of IPv6 addresses. For example, a Global Unicast the uniqueness of IPv6 addresses. For example, a Global Unicast
address may be created with an interface identifier that is only address may be created with an interface identifier that is only
unique on a single subnet, and a Link-Local address may be created unique on a single subnet, and a Link-Local address may be created
with interface identifier that is unique over multiple subnets. with interface identifier that is unique over multiple subnets.
For all unicast addresses, except those that start with the binary For all unicast addresses, except those that start with the binary
value 000, Interface IDs are required to be 64 bits long. Background value 000, Interface IDs are required to be 64 bits long. Background
on the 64 bit boundary can be bound in [RFC7421]. on the 64 bit boundary in IPv6 addresses can be found in [RFC7421].
The details of forming interface identifiers are defined in other The details of forming interface identifiers are defined in other
specifications, such as "Privacy Extensions for Stateless Address specifications, such as "Privacy Extensions for Stateless Address
Autoconfiguration in IPv6" [RFC4941] or "A Method for Generating Autoconfiguration in IPv6" [RFC4941] or "A Method for Generating
Semantically Opaque Interface Identifiers with IPv6 Stateless Address Semantically Opaque Interface Identifiers with IPv6 Stateless Address
Autoconfiguration (SLAAC)"[RFC7217]. Specific cases are described in Autoconfiguration (SLAAC)"[RFC7217]. Specific cases are described in
appropriate "IPv6 over <link>" specifications, such as "IPv6 over appropriate "IPv6 over <link>" specifications, such as "IPv6 over
Ethernet" [RFC2464] and "Transmission of IPv6 Packets over ITU-T Ethernet" [RFC2464] and "Transmission of IPv6 Packets over ITU-T
G.9959 Networks" [RFC7428]. The security and privacy considerations G.9959 Networks" [RFC7428]. The security and privacy considerations
for IPv6 address generation is described in [RFC7721]. for IPv6 address generation is described in [RFC7721].
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and that it doesn't cause any problems in practice. and that it doesn't cause any problems in practice.
Appendix B. CHANGES SINCE RFC 4291 Appendix B. CHANGES SINCE RFC 4291
This document has the following changes from RFC4291, "IP Version 6 This document has the following changes from RFC4291, "IP Version 6
Addressing Architecture". Numbers identify the Internet-Draft Addressing Architecture". Numbers identify the Internet-Draft
version that the change was made.: version that the change was made.:
Working Group Internet Drafts Working Group Internet Drafts
06) Editorial changes.
05) Expanded Security Considerations Section to discuss privacy 05) Expanded Security Considerations Section to discuss privacy
issues related to using stable interface identifiers to issues related to using stable interface identifiers to
create IPv6 addresses, and reference solutions that mitigate create IPv6 addresses, and reference solutions that mitigate
these issues such as RFC7721, RFC4941, RFC7271. these issues such as RFC7721, RFC4941, RFC7271.
05) Added instructions in IANA Considerations to update 05) Added instructions in IANA Considerations to update
references in the IANA registries that currently point to references in the IANA registries that currently point to
RFC4291 to point to this document. RFC4291 to point to this document.
05) Rename Section 2.4.7 to "Other Local Unicast Addresses" and 05) Rename Section 2.4.7 to "Other Local Unicast Addresses" and
 End of changes. 5 change blocks. 
4 lines changed or deleted 6 lines changed or added

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