Problem Statement for Renumbering IPv6 Hosts with Static Addresses in Enterprise Networks
RFC 6866
Document | Type | RFC - Informational (February 2013; No errata) | |
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Authors | Brian Carpenter , Sheng Jiang | ||
Last updated | 2015-10-14 | ||
Replaces | draft-carpenter-6renum-static-problem | ||
Stream | IETF | ||
Formats | plain text html pdf htmlized bibtex | ||
Reviews | |||
Stream | WG state | Submitted to IESG for Publication | |
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 6866 (Informational) | |
Action Holders |
(None)
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Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | Ron Bonica | ||
IESG note | Lee Howard (lee.howard@twcable.com) is the document shepherd. | ||
Send notices to | (None) |
Internet Engineering Task Force (IETF) B. Carpenter Request for Comments: 6866 Univ. of Auckland Category: Informational S. Jiang ISSN: 2070-1721 Huawei Technologies Co., Ltd. February 2013 Problem Statement for Renumbering IPv6 Hosts with Static Addresses in Enterprise Networks Abstract This document analyses the problems of updating the IPv6 addresses of hosts in enterprise networks that, for operational reasons, require static addresses. Status of This Memo This document is not an Internet Standards Track specification; it is published for informational purposes. This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Not all documents approved by the IESG are a candidate for any level of Internet Standard; see Section 2 of RFC 5741. Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc6866. Copyright Notice Copyright (c) 2013 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Carpenter & Jiang Informational [Page 1] RFC 6866 Renumbering Static Addresses February 2013 Table of Contents 1. Introduction ....................................................2 2. Analysis ........................................................3 2.1. Static Addresses Imply Static Prefixes .....................3 2.2. Other Hosts Need Literal Address ...........................4 2.3. Static Server Addresses ....................................5 2.4. Static Virtual Machine Addresses ...........................6 2.5. Asset Management and Security Tracing ......................6 2.6. Primitive Software Licensing ...............................7 2.7. Network Elements ...........................................7 2.8. Access Control Lists .......................................7 2.9. Management Aspects .........................................8 3. Summary of Problem Statement ....................................8 4. Security Considerations .........................................9 5. Acknowledgements ...............................................10 6. Informative References .........................................10 1. Introduction A problem that is frequently mentioned in discussions of renumbering enterprise networks [RFC5887] [RFC6879] [GAP-ANALYSIS] is that of statically assigned addresses. The scope of the present document is to analyse the problems caused for enterprise networks during renumbering by static addresses and to identify related gaps in existing technology. Some aspects also apply to small office and home networks, but these are not the intended scope of the document. A static address can be defined as an IP address that is intended by the network manager to remain constant over a long period of time, possibly many years, regardless of system restarts or any other unpredictable events. Static addressing often implies manual address assignment, including manual preparation of configuration scripts. An implication of hosts having static addresses is that subnets must have static prefixes, which also requires analysis. In a sense, the issue of static addresses is a result of history. As discussed in Section 3.2 of [RFC6250], various properties of IP addresses that have long been assumed by programmers and operators are no longer true today, although they were true when almost all addresses were manually assigned. In some cases, the resulting operational difficulties are avoided by static addressing. Although static addressing is, in general, problematic for renumbering, hosts inside an enterprise may have static addresses for a number of operational reasons: Carpenter & Jiang Informational [Page 2] RFC 6866 Renumbering Static Addresses February 2013Show full document text