RFC 3543 (rfc3543) - Page 2 of 33
Registration Revocation in Mobile IPv4
Alternative Format: Original Text Document
RFC 3543 Registration Revocation in Mobile IPv4 August 2003
4.2.2. Home Domain Revoking a Registration. . . . . . . 19
4.2.2.1. Home Agent Responsibilities. . . . . . 19
4.2.2.2. Foreign Agent Responsibilities . . . . 20
4.2.2.3. 'Direct' Co-located Mobile Node
Responsibilities . . . . . . . . . . . 20
4.2.3. Foreign Domain Revoking a Registration . . . . . 21
4.2.3.1. Foreign Agent Responsibilities . . . . 21
4.2.3.2. Home Agent Responsibilities. . . . . . 22
4.2.4. Mobile Node Deregistering a Registration . . . . 23
4.3. Mobile IP Registration Bits in the Revocation Process. . 23
4.3.1. The 'R' Bit in Use . . . . . . . . . . . . . . . 23
4.3.2. The 'D' Bit in Use (co-located mobile nodes) . . 23
5. Error Codes. . . . . . . . . . . . . . . . . . . . . . . . . . 24
6. Security Considerations. . . . . . . . . . . . . . . . . . . . 24
6.1. Agent Advertisements . . . . . . . . . . . . . . . . . . 24
6.2. Revocation Messages. . . . . . . . . . . . . . . . . . . 25
7. IANA Considerations. . . . . . . . . . . . . . . . . . . . . . 27
7.1. New Message Types. . . . . . . . . . . . . . . . . . . . 27
7.2. New Extension Values . . . . . . . . . . . . . . . . . . 27
7.3. New Error Codes. . . . . . . . . . . . . . . . . . . . . 27
8. References . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8.1. Normative (Numerical References) . . . . . . . . . . . . 27
8.2. Informational (Alphabetical References). . . . . . . . . 28
Appendix A An Example of the New Messages in Use. . . . . . . . . 29
A.1. The Registration Phase . . . . . . . . . . . . . 29
A.2. The Revocation Phase . . . . . . . . . . . . . . 29
Appendix B Disparate Address, and Receiver Considerations . . . . 30
Acknowledgments. . . . . . . . . . . . . . . . . . . . . . . . . . 32
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 32
Full Copyright Statement . . . . . . . . . . . . . . . . . . . . . 33
1. Introduction and Applicability
Mobile IP [1] defines registration of a mobile node's location to
provide connectivity between the mobile node and its home domain,
facilitating communication between mobile nodes and any correspondent
node. At any time, either the home or foreign agent may wish to
cease servicing a mobile node, or for administrative reasons may no
longer be required to service a mobile node.
This document defines a general registration revocation mechanism for
Mobile IPv4, whereby a mobility agent can notify another mobility
agent (or a 'direct' co-located mobile node) of the termination of
mobility bindings. A mobility agent that receives a revocation
notification no longer has to provide services to the mobile node
whose registration has been revoked. A signaling mechanism already
defined by the Mobile IPv4 protocol [1] is leveraged as a way to
inform a mobile node of the revocation of its binding.
Glass & Chandra Standards Track