2.4.2 IP Routing for Wireless/Mobile Hosts (mobileip)

NOTE: This charter is a snapshot of the 48th IETF Meeting in Pittsburgh, Pennsylvania. It may now be out-of-date. Last Modified: 17-Jul-00


Phil Roberts <qa3445@email.mot.com>
Basavaraj Patil <basavaraj.patil@nokia.com>

Routing Area Director(s):

David Oran <oran@cisco.com>
Rob Coltun <rcoltun@redback.com>

Routing Area Advisor:

David Oran <oran@cisco.com>

Mailing Lists:

General Discussion:mobile-ip@standards.nortelnetworks.com
To Subscribe: listserv@standards.nortelnetworks.com
In Body: subscribe mobile-ip first_name last_name
Archive: http://www.nortelnetworks.com/standards

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.

- Evolve the security framework/trust model for mobile nodes.

- 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:

- Additional IP-based solutions for micro mobility (movement within a subnet).

- 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:



Review and approve the charter, making any changes deemed necessary.



Post an Internet-Draft documenting the Mobile Hosts protocol.



Review the charter of the Mobile IP Working Group for additional work required to facilitate non-host mobility.



Submit the IPv4 Mobile Host Protocol to the IESG as a Proposed Standard.



Submit the IPv6 Mobile Host Protocol to the IESG as a Proposed Standard.



Submit Internet-Draft for NAI support in Mobile IP to IESG for consideration as a Proposed Standard.

Dec 99


Review security framework requirements for Mobile IP.

Dec 99


Review solutions and submit drafts for mobility in private address spaces.

Dec 99


Submit draft capturing cellular requirements to IESG as an Informational RFC.

Jul 00


Review QoS in a Mobile IP enabled network.

Jul 00


Submit Mobile IPv6 MIB to IESG for consideration as a Proposed Standard.

Jul 00


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.


Request For Comments:







IP Mobility Support



The Definitions of Managed Objects for IP Mobility Support using SMIv2



Applicability Statement for IP Mobility Support



Minimal Encapsulation within IP



IP Encapsulation within IP



Reverse Tunneling for Mobile IP



Sun's SKIP Firewall Traversal for Mobile IP



Mobile IP Network Access Identifier Extension for IPv4

Current Meeting Report

Refer to MobileIP Meeting Report slide set.


MobileIP Meeting Report
Dynamic Home Addressing in Mobile IP Using Transient Tunnels
Use of DHCP in Mobile IP
Mobility Support for IPv4 and IPv6 Interconnected Networks based on Dual-Stack Model
GSM SIM Authentication for Mobile IP
Hierarchical MIPv6 and Fast Handoffs
IDMP (Intra-Domain Mobility Management Protocol)
Local Mobility Agents in IPv6
Integration of Mobile IP and Multi-Protocol Label Switching
Mobile IP Regional Paging (MIRP)
Multicalst Micro-Mobility Protocol
Mobile Networks Support in Mobile IPv6
Mobile Virtual Private Network
Mobile IPv6 Regional Registrations