Dynamic Prefix Allocation for Network Mobility for Mobile IPv4 (NEMOv4)
RFC 6626
Document | Type |
RFC - Proposed Standard
(May 2012; No errata)
Updates RFC 5177
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Authors | Vidya Narayanan , George Tsirtsis , Vincent Park , Kent Leung | ||
Last updated | 2015-10-14 | ||
Stream | Internet Engineering Task Force (IETF) | ||
Formats | plain text html pdf htmlized (tools) htmlized bibtex | ||
Reviews | |||
Stream | WG state | WG Document | |
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 6626 (Proposed Standard) | |
Action Holders |
(None)
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Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | Jari Arkko | ||
IESG note | Pete McCann (mccap@petoni.org) is the document shepherd. | ||
Send notices to | (None) |
Internet Engineering Task Force (IETF) G. Tsirtsis Request for Comments: 6626 V. Park Updates: 5177 V. Narayanan Category: Standards Track Qualcomm ISSN: 2070-1721 K. Leung Cisco May 2012 Dynamic Prefix Allocation for Network Mobility for Mobile IPv4 (NEMOv4) Abstract The base Network Mobility for Mobile IPv4 (NEMOv4) specification defines extensions to Mobile IPv4 for mobile networks. This specification defines a dynamic prefix allocation mechanism for NEMOv4. Status of This Memo This is an Internet Standards Track document. 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). Further information on Internet Standards is available in 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/rfc6626. Copyright Notice Copyright (c) 2012 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. Tsirtsis, et al. Standards Track [Page 1] RFC 6626 Dynamic Prefix Allocation for NEMOv4 May 2012 Table of Contents 1. Introduction ....................................................2 2. Requirements Notation ...........................................2 3. Dynamic Mobile Prefix Allocation ................................2 3.1. Mobile Client Considerations ...............................2 3.2. Home Agent Considerations ..................................3 4. Security Considerations .........................................4 5. IANA Considerations .............................................4 6. Acknowledgements ................................................4 7. Normative References ............................................4 1. Introduction The base NEMOv4 specification [RFC5177] defines extensions to Mobile IPv4 [RFC5944] for mobile networks. This specification adds support for dynamic allocation of mobile prefixes by the home agent. 2. Requirements Notation The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in [RFC2119]. 3. Dynamic Mobile Prefix Allocation The following extension is defined according to this specification. 3.1. Mobile Client Considerations According to this specification, the Prefix field of the Mobile Network Request extension MUST be set to zero to indicate that the Mobile Router requests mobile network prefix(es) be assigned to it by the home agent. In this case, the Mobile Router MAY set the prefix length field of such extensions to zero or to a length of its choice as a hint to the home agent. According to this specification, Mobile Network Request extensions with the Prefix field set to zero MAY be included in a registration request message either during initial registration or during a subsequent registration. When a Mobile Router receives a registration reply, it MUST process it as defined in Mobile IPv4 [RFC5944] and [RFC5177]. If one or more network acknowledgement extensions are included with the Code field set to "Success", the Mobile Router SHOULD treat the prefixes in the corresponding Prefix fields as allocated prefixes and create the appropriate bindings as defined in [RFC5177]. Tsirtsis, et al. Standards Track [Page 2] RFC 6626 Dynamic Prefix Allocation for NEMOv4 May 2012 In response to a registration request with a Mobile Network Request extension with the Prefix field set to zero, if a Mobile Router receives a registration reply with a network acknowledgement extension including Code field set to 1 "invalid prefix", it may useShow full document text