Mobile IPv4 Regional Registration

Document Type Expired Internet-Draft (mobileip WG)
Last updated 2004-07-19
Stream IETF
Intended RFC status (None)
Expired & archived
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Stream WG state WG Document
Document shepherd No shepherd assigned
IESG IESG state Expired
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Responsible AD (None)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


Using Mobile IP, a mobile node registers with its home agent each time it changes care-of address. If the distance between the visited network and the home network of the mobile node is large, the signaling delay for these registrations may be long. This document describes a new kind of `regional' registrations, i.e. registrations local to the visited domain. The regional signaling is performed via a new network entity called a Gateway Foreign Agent and introduces a layer of hierarchy in the visited domain. Regional registrations reduce the number of signaling messages to the home network, and reduce the signaling delay when a mobile node moves from one foreign agent to another within the same visited domain. This document is an optional extension to the Mobile IPv4 protocol.


Gabriel Montenegro (
Pat Calhoun (
Charles Perkins (
Eva Fogelstroem (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)