draft-ietf-mip4-nemo-v4-base-05.txt   draft-ietf-mip4-nemo-v4-base-06.txt 
Network Working Group K. Leung Network Working Group K. Leung
Internet-Draft G. Dommety Internet-Draft G. Dommety
Intended Status: Proposed Standard Cisco Systems Intended Status: Proposed Standard Cisco Systems
Expires: May 4, 2008 V. Narayanan Expires: May 6, 2008 V. Narayanan
Qualcomm, Inc. Qualcomm, Inc.
A. Petrescu A. Petrescu
Motorola Motorola
October 29, 2007 October 31, 2007
Network Mobility (NEMO) Extensions for Mobile IPv4 Network Mobility (NEMO) Extensions for Mobile IPv4
draft-ietf-mip4-nemo-v4-base-05.txt draft-ietf-mip4-nemo-v4-base-06.txt
Status of this Memo Status of this Memo
By submitting this Internet-Draft, each author represents that any By submitting this Internet-Draft, each author represents that any
applicable patent or other IPR claims of which he or she is aware applicable patent or other IPR claims of which he or she is aware
have been or will be disclosed, and any of which he or she becomes have been or will be disclosed, and any of which he or she becomes
aware will be disclosed, in accordance with Section 6 of BCP 79. aware will be disclosed, in accordance with Section 6 of BCP 79.
Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF), its areas, and its working groups. Note that Task Force (IETF), its areas, and its working groups. Note that
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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."
The list of current Internet-Drafts can be accessed at The list of current Internet-Drafts can be accessed at
http://www.ietf.org/ietf/1id-abstracts.txt. http://www.ietf.org/ietf/1id-abstracts.txt.
The list of Internet-Draft Shadow Directories can be accessed at The list of Internet-Draft Shadow Directories can be accessed at
http://www.ietf.org/shadow.html. http://www.ietf.org/shadow.html.
This Internet-Draft will expire on May 4, 2008. This Internet-Draft will expire on May 6, 2008.
Abstract Abstract
This document describes a protocol for supporting Mobile Networks This document describes a protocol for supporting Mobile Networks
between a Mobile Router and a Home Agent by extending the Mobile IPv4 between a Mobile Router and a Home Agent by extending the Mobile IPv4
protocol. A Mobile Router is responsible for the mobility of one or protocol. A Mobile Router is responsible for the mobility of one or
more network segments or subnets moving together. The Mobile Router more network segments or subnets moving together. The Mobile Router
hides its mobility from the nodes on the mobile network. The nodes hides its mobility from the nodes on the mobile network. The nodes
on the Mobile Network may be fixed in relationship to the Mobile on the Mobile Network may be fixed in relationship to the Mobile
Router and may not have any mobility function. Router and may not have any mobility function.
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8. Nested Mobile Networks . . . . . . . . . . . . . . . . . . . .11 8. Nested Mobile Networks . . . . . . . . . . . . . . . . . . . .11
9. Routing Protocol between Mobile Router and Home Agent. . . . .12 9. Routing Protocol between Mobile Router and Home Agent. . . . .12
10. Security Considerations . . . . . . . . . . . . . . . . . . .13 10. Security Considerations . . . . . . . . . . . . . . . . . . .13
10.1 Security when Dynamic Routing Protocol is Used. . . . . . .13 10.1 Security when Dynamic Routing Protocol is Used. . . . . . .13
11. IANA Considerations . . . . . . . . . . . . . . . . . . . . .14 11. IANA Considerations . . . . . . . . . . . . . . . . . . . . .14
12. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . .15 12. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . .15
13. References . . . . . . . . . . . . . . . . . . . . . . . . . .15 13. References . . . . . . . . . . . . . . . . . . . . . . . . . .15
13.1. Normative References . . . . . . . . . . . . . . . . . . .15 13.1. Normative References . . . . . . . . . . . . . . . . . . .15
13.2. Informative References . . . . . . . . . . . . . . . . . .15 13.2. Informative References . . . . . . . . . . . . . . . . . .15
14. Changelog . . . . . . . . . . . . . . . . . . . . . . . . . .16 14. Changelog . . . . . . . . . . . . . . . . . . . . . . . . . .16
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . .17 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . .18
Intellectual Property and Copyright Statements . . . . . . . . . .18 Intellectual Property and Copyright Statements . . . . . . . . . .19
1. Introduction 1. Introduction
This document describes protocol extensions to Mobile IPv4 as per This document describes protocol extensions to Mobile IPv4 as per
[RFC3344] and its update [2], to enable support for Mobile [RFC3344] and its update [2], to enable support for Mobile
Networks. This draft addresses mainly the co-located Care-of Networks. This draft addresses mainly the co-located Care-of
Address mode. Foreign Agent Care-of Address mode (with 'legacy' Address mode. Foreign Agent Care-of Address mode (with 'legacy'
Foreign Agents, [RFC3344]) are supported but without optimization, Foreign Agents, [RFC3344]) are supported but without optimization,
double encapsulation being used. For an optimization of this mode, double encapsulation being used. For an optimization of this mode,
the gentle reader is directed to [1]. the gentle reader is directed to [1].
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Mobile Network Extension (skippable type range to be assigned Mobile Network Extension (skippable type range to be assigned
by IANA) by IANA)
Length: Length:
6 6
Sub-Type: Sub-Type:
1 (Mobile Network Request) TBA (Mobile Network Request)
Prefix Length: Prefix Length:
8-bit unsigned integer indicating the number of bits covering 8-bit unsigned integer indicating the number of bits covering
the network part of the address contained in the Prefix field. the network part of the address contained in the Prefix field.
Prefix: Prefix:
32-bit unsigned integer in network byte-order containing an 32-bit unsigned integer in network byte-order containing an
IPv4 address whose first Prefix Length bits make up the Mobile IPv4 address whose first Prefix Length bits make up the Mobile
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length | Sub-Type | Code | | Type | Length | Sub-Type | Code |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Prefix Length | Reserved | Prefix | Prefix Length | Reserved | Prefix
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Type: Type:
Mobile Network Extension (skippable type range to be assigned TBA - Mobile Network Extension (skippable type range to be
by IANA) assigned by IANA)
Length: Length:
8 8
Sub-Type: Sub-Type:
TBA (Explicit Mode Acknowledgement) TBA (Explicit Mode Acknowledgement)
TBA (Implicit Mode Acknowledgement) TBA (Implicit Mode Acknowledgement)
Code: Code:
Value indicating success or failure. Value indicating success or failure.
0 Success TBA Success
TBA Invalid prefix (MOBNET_INVALID_PREFIX_LEN) TBA Invalid prefix (MOBNET_INVALID_PREFIX_LEN)
TBA Mobile Router is not authorized for prefix TBA Mobile Router is not authorized for prefix
(MOBNET_UNAUTHORIZED) (MOBNET_UNAUTHORIZED)
TBA Forwarding setup failed (MOBNET_FWDING_SETUP_FAILED) TBA Forwarding setup failed (MOBNET_FWDING_SETUP_FAILED)
Prefix Length: Prefix Length:
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11. IANA Considerations 11. IANA Considerations
IANA to modify rules for the existing registry "Mobile IPv4 numbers - IANA to modify rules for the existing registry "Mobile IPv4 numbers -
per RFC 3344". The numbering space for Extensions that may appear in per RFC 3344". The numbering space for Extensions that may appear in
Mobile IP control messages (those sent to and from UDP port number Mobile IP control messages (those sent to and from UDP port number
434) should be modified. 434) should be modified.
The new Values and Names for the Type for Extensions appearing in The new Values and Names for the Type for Extensions appearing in
Mobile IP control messages are the following: Mobile IP control messages are the following:
Value Name Value Name
----- ------------------------------------------ ----- ------------------------------------------
TBA Mobile Network Extension (To Be Assigned by IANA) TBA Mobile Network Extension (To Be Assigned by IANA)
The new Values and Names for the Sub-Type for Mobile Network A new number space should be created for the Values and Names for
Extension are the following: the Sub-Type for Mobile Network Extensions. This number space is
initially defined to hold the following entries, allocated by this
document:
Value Name Value Name
----- ------------------------------------------ ----- ------------------------------------------
TBA Mobile Network Request Extension TBA Mobile Network Request Extension
TBA Explicit Mode Acknowledgement Extension TBA Explicit Mode Acknowledgement Extension
TBA Implicit Mode Acknowledgement Extension TBA Implicit Mode Acknowledgement Extension
The policy of future assignments to this number space should be
following Expert Review (and not necessarily IETF Consensus).
The new Code values for Mobile IP Registration Reply messages are The new Code values for Mobile IP Registration Reply messages are
the following: the following:
Code Values for Mobile IP Registration Reply messages Code Values for Mobile IP Registration Reply messages
----------------------------------------------------- -----------------------------------------------------
Registration denied by the Home Agent: (To Be Assigned by IANA) Registration denied by the Home Agent: (To Be Assigned by IANA)
TBA Mobile Network Prefix operation error (HA_MOBNET_ERROR) TBA Mobile Network Prefix operation error (HA_MOBNET_ERROR)
TBA Mobile Router operation is not permitted TBA Mobile Router operation is not permitted
(HA_MOBNET_DISALLOWED) (HA_MOBNET_DISALLOWED)
The new Code Values for Mobile IP Registration Reply messages are the A new number space should be created for the Code Values for the
following: Mobile Network Acknowledgement Extension. This number space is
initially defined to hold the following entries, allocated by this
document:
Code Values for Mobile Network Acknowledgement Extension Code Values for Mobile Network Acknowledgement Extension
-------------------------------------------------------- --------------------------------------------------------
Registration denied by the Home Agent: Result of registration, as sent by the Home Agent:
TBA Success
TBA Invalid prefix length (MOBNET_INVALID_PREFIX_LEN) TBA Invalid prefix length (MOBNET_INVALID_PREFIX_LEN)
TBA Mobile Router is not authorized for prefix TBA Mobile Router is not authorized for prefix
(MOBNET_UNAUTHORIZED) (MOBNET_UNAUTHORIZED)
TBA Forwarding setup failed (MOBNET_FWDING_SETUP_FAILED) TBA Forwarding setup failed (MOBNET_FWDING_SETUP_FAILED)
The policy of future assignments to this number space should be
following Expert Review (and not necessarily IETF Consensus).
The current non-modified numbering spaces could be consulted at the The current non-modified numbering spaces could be consulted at the
following URL: http://www.iana.org/assignments/mobileip-numbers following URL: http://www.iana.org/assignments/mobileip-numbers
(contents last updated 2007-07-02 and last browsed 2007-10-04). (contents last updated 2007-10-26 and last browsed 2007-10-31).
12. Acknowledgements 12. Acknowledgements
The authors would like to thank Christophe Janneteau, George The authors would like to thank Christophe Janneteau, George
Popovich, Ty Bekiares, Ganesh Srinivasan, Alpesh Patel, Ryuji Popovich, Ty Bekiares, Ganesh Srinivasan, Alpesh Patel, Ryuji
Wakikawa, George Tsirtsis, and Henrik Levkowetz for their helpful Wakikawa, George Tsirtsis, and Henrik Levkowetz for their helpful
discussions, reviews and comments. Vijay Devarapalli extensively discussions, reviews and comments. Vijay Devarapalli extensively
reviewed one of the later versions of the draft. Hans Sjostrand reviewed one of the later versions of the draft. Hans Sjostrand
(Hans Sj\"ostrand) identified the last clarifications with respect (Hans Sj\"ostrand) identified the last clarifications with respect
to Foreign Agent mode treatment. Pete McCann contributed necessary to Foreign Agent mode treatment. Pete McCann contributed necessary
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[2] Perkins, C., Ed., "IP Mobility Support for IPv4, [2] Perkins, C., Ed., "IP Mobility Support for IPv4,
revised", draft-ietf-mip4-rfc3344bis-05.txt, IETF revised", draft-ietf-mip4-rfc3344bis-05.txt, IETF
Internet-Draft, Work in Progress, July 9, 2007. Internet-Draft, Work in Progress, July 9, 2007.
14. Changelog 14. Changelog
The changes are listed in reverse chronological order, most recent The changes are listed in reverse chronological order, most recent
changes appearing at the top of the list: changes appearing at the top of the list:
From draft-ietf-mip4-nemo-v4-base-05.txt to
draft-ietf-mip4-nemo-v4-base-06.txt
-substituted "TBA" for "1" in Sub-type of Mobile Network Request
Extension.
-substituted "TBA" for "0" in Code of Mobile Network
Acknowledgement Extension and in the IANA Section.
-modified the IANA section to request definition two new spaces
(instead of just defining new values) for Sub-Type of Mobile
Network Extensions and for Code Values for Mobile Network
Acknowledgement Extension, and to suggest "Expert Review" as
method of new assignments in these two spaces (and not
necessarily "IETF Conssensus").
From draft-ietf-mip4-nemo-v4-base-04.txt to From draft-ietf-mip4-nemo-v4-base-04.txt to
draft-ietf-mip4-nemo-v4-base-05.txt draft-ietf-mip4-nemo-v4-base-05.txt
-updated the Acknowledgements section. -updated the Acknowledgements section.
-capitalized all occurences of "Home Address", "Mobile Router" -capitalized all occurences of "Home Address", "Mobile Router"
and "Care-of Address". and "Care-of Address".
-refined many statements. -refined many statements.
-checked against 'idnits' script version 2.04.16. -checked against 'idnits' script version 2.04.16.
From draft-ietf-mip4-nemo-v4-base-03.txt to From draft-ietf-mip4-nemo-v4-base-03.txt to
draft-ietf-mip4-nemo-v4-base-04.txt draft-ietf-mip4-nemo-v4-base-04.txt
skipping to change at page 18, line 4 skipping to change at page 18, line 33
Email: gdommety@cisco.com Email: gdommety@cisco.com
Vidya Narayanan Vidya Narayanan
QUALCOMM, Inc. QUALCOMM, Inc.
5775 Morehouse Dr 5775 Morehouse Dr
San Diego, CA San Diego, CA
USA USA
Phone: +1 858-845-2483 Phone: +1 858-845-2483
Email: vidyan@qualcomm.com Email: vidyan@qualcomm.com
Alexandru Petrescu Alexandru Petrescu
Motorola Motorola
Parc les Algorithmes Saint Aubin Parc les Algorithmes Saint Aubin
Gif-sur-Yvette 91193 Gif-sur-Yvette 91193
France France
Phone: +33169354827
Email: Alexandru.Petrescu@motorola.com Email: Alexandru.Petrescu@motorola.com
Comments are solicited and should be addressed to the working Comments are solicited and should be addressed to the working
group's mailing list at mip4@ietf.org and/or the authors. group's mailing list at mip4@ietf.org and/or the authors.
Intellectual Property Statement Intellectual Property Statement
The IETF takes no position regarding the validity or scope of any The IETF takes no position regarding the validity or scope of any
Intellectual Property Rights or other rights that might be claimed to Intellectual Property Rights or other rights that might be claimed to
pertain to the implementation or use of the technology described in pertain to the implementation or use of the technology described in
 End of changes. 19 change blocks. 
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