Mobile Networks Considerations for IPv6 Deployment
RFC 6342
| Document | Type |
RFC - Informational
(August 2011; No errata)
Obsoleted by RFC 6342
Obsoletes RFC 6312
|
|
|---|---|---|---|
| Last updated | 2015-10-14 | ||
| Stream | IETF | ||
| Formats | plain text pdf htmlized bibtex | ||
| Stream | WG state | WG Document | |
| Document shepherd | Fred Baker | ||
| IESG | IESG state | RFC 6342 (Informational) | |
| Consensus Boilerplate | Unknown | ||
| Telechat date | |||
| Responsible AD | Ron Bonica | ||
| IESG note | Fred Baker (fred@cisco.com) is the document shepherd. | ||
| Send notices to | (None) | ||
Internet Engineering Task Force (IETF) R. Koodli
Request for Comments: 6342 Cisco Systems
Obsoletes: 6312 August 2011
Category: Informational
ISSN: 2070-1721
Mobile Networks Considerations for IPv6 Deployment
Abstract
Mobile Internet access from smartphones and other mobile devices is
accelerating the exhaustion of IPv4 addresses. IPv6 is widely seen
as crucial for the continued operation and growth of the Internet,
and in particular, it is critical in mobile networks. This document
discusses the issues that arise when deploying IPv6 in mobile
networks. Hence, this document can be a useful reference for service
providers and network designers.
RFC Editor Note
This document obsoletes RFC 6312.
Due to a publishing error, RFC 6312 contains the incorrect RFC number
in its header. This document corrects that error with a new RFC
number. The specification herein is otherwise unchanged with respect
to RFC 6312.
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/rfc6342.
Koodli Informational [Page 1]
RFC 6342 IPv6 in Mobile Networks August 2011
Copyright Notice
Copyright (c) 2011 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.
Table of Contents
1. Introduction ....................................................2
2. Reference Architecture and Terminology ..........................3
3. IPv6 Considerations .............................................4
3.1. IPv4 Address Exhaustion ....................................4
3.2. NAT Placement in Mobile Networks ...........................7
3.3. IPv6-Only Deployment Considerations .......................10
3.4. Fixed-Mobile Convergence ..................................13
4. Summary and Conclusion .........................................14
5. Security Considerations ........................................16
6. Acknowledgements ...............................................16
7. Informative References .........................................16
1. Introduction
The dramatic growth of the Mobile Internet is accelerating the
exhaustion of the available IPv4 addresses. It is widely accepted
that IPv6 is necessary for the continued operation and growth of the
Internet in general and of the Mobile Internet in particular. While
IPv6 brings many benefits, certain unique challenges arise when
deploying it in mobile networks. This document describes such
challenges and outlines the applicability of the existing IPv6
deployment solutions. As such, it can be a useful reference document
for service providers as well as network designers. This document
does not propose any new protocols or suggest new protocol
specification work.
The primary considerations that we address in this document on IPv6
deployment in mobile networks are:
o Public and Private IPv4 address exhaustion and implications to
mobile network deployment architecture;
Koodli Informational [Page 2]
RFC 6342 IPv6 in Mobile Networks August 2011
o Placement of Network Address Translation (NAT) functionality and
its implications;
o IPv6-only deployment considerations and roaming implications; and
o Fixed-Mobile Convergence and implications to overall architecture.
In the following sections, we discuss each of these in detail.
For the most part, we assume the Third Generation Partnership Project
(3GPP) 3G and 4G network architectures specified in [3GPP.3G] and
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