Current Meeting Report

2.2.4 IP Routing for Wireless/Mobile Hosts (mobileip)

NOTE: This charter is a snapshot of the 52nd IETF Meeting in Salt Lake City, Utah USA. It may now be out-of-date. Last Modified: 01-Nov-01
Phil Roberts <>
Basavaraj Patil <>
Internet Area Director(s):
Thomas Narten <>
Erik Nordmark <>
Internet Area Advisor:
Thomas Narten <>
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Description of Working Group:
The Mobile IP Working Group has developed routing support to permit IP nodes (hosts and routers) using either IPv4 or IPv6 to seamlessly "roam" among IP subnetworks and media types. The Mobile IP method supports transparency above the IP layer, including the maintenance of active TCP connections and UDP port bindings. Where this level of transparency is not required, solutions such as DHCP and dynamic DNS updates may be adequate and techniques such as Mobile IP not needed.

The WG moving forward will focus on deployment issues in Mobile IP and provide appropriate protocol solutions to address known deficiencies and shortcomings. For example, the wireless/cellular industry is considering using Mobile IP as one technique for IP mobility for wireless data. The working group will endeavor to gain an understanding of data service in cellular systems such as GPRS, UMTS, CDMA2000, and interact with other standards bodies that are trying to adopt and deploy Mobile IP WG protocols in these contexts. In order to provide a complete solution and a set of protocols that can be used as a roadmap for widespread deployment, the following work needs to be accomplished by this WG. In the near term, the WG needs to work on:

- Use of NAIs to identify mobile users/nodes.

- Specifying how Mobile IP should use AAA functionality to support inter-domain and intra-domain mobility.

- Develop solutions for IPv4 private address spaces for the scenarios needed for deployment.

- Documenting any requirements specific to cellular/wireless networks.

In the longer term, the WG needs to address:

- QoS in the mobile IP environment using diff-serv and/or int-serv/RSVP.

- Location Privacy.

The Working Group will ensure that solutions proposed for these problem domains are suitable for IPv4 and IPv6 respectively.

Goals and Milestones:
Done   Review and approve the charter, making any changes deemed necessary.
Done   Post an Internet-Draft documenting the Mobile Hosts protocol.
Done   Review the charter of the Mobile IP Working Group for additional work required to facilitate non-host mobility.
Done   Submit the IPv4 Mobile Host Protocol to the IESG as a Proposed Standard.
Done   Submit the IPv6 Mobile Host Protocol to the IESG as a Proposed Standard.
Done   Submit Internet-Draft for NAI support in Mobile IP to IESG for consideration as a Proposed Standard.
Done   Review security framework requirements for Mobile IP.
Done   Review solutions and submit drafts for mobility in private address spaces.
Done   Supply AAA requirements for Mobile IP to the AAA Working Group
Sep 00   Submit the IPv4 Mobile IP Protocol to the IESG for consideration as a Draft Standard.
Oct 00   Review the WG charter and update as needed.
Dec 00   Develop an access technology independent method for supporting low latency handover between access points within an administrative domain or across administrative domains.
Jul 01   Review QoS in a Mobile IP enabled network.
Aug 01   Submit Mobile IPv6 MIB to IESG for consideration as a Proposed Standard.
Request For Comments:
RFC2005PSApplicability Statement for IP Mobility Support
RFC2004PSMinimal Encapsulation within IP
RFC2003PSIP Encapsulation within IP
RFC2002PSIP Mobility Support
RFC2006PSThe Definitions of Managed Objects for IP Mobility Support using SMIv2
RFC2356 Sun's SKIP Firewall Traversal for Mobile IP
RFC2794PSMobile IP Network Access Identifier Extension for IPv4
RFC2977 Mobile IP Authentication, Authorization, and Accounting Requirements
RFC3012PSMobile IP Challenge/Response Extensions
RFC3024PSReverse Tunneling for Mobile IP, revised
RFC3115PSMobile IP Vendor/Organization-Specific Extensions

Current Meeting Report

None received.


Framework for MIPv6 Security Solution
Issues with Low Latency MIPv4
Issues with RFC 3012bis
Fast Handovers for Mobile IPv6
2nd IPv6 Interoperability Event
Piggybacking (BU in DO) Issues
Rules of the game
Home Address Option and Routing Header secreqts
Interoperability Testing for MIPV4/MIPv6
BU Security Proposals
Localized Mobility Management Requirements for IPv6
MIPv6 Fast Handoffs Implementation Experience
Mobile IPv4 Traversal Across Firewalls
Issues with Low Latency MIPv4
Issues with RFC 3012bis
Fast Handovers for Mobile IPv6
2nd IPv6 Interoperability Event