IP Routing for Wireless/Mobile Hosts (mobileip)
                     Monday, 12/7/98, 1300 - 1500
                                   
Co-chairs:

  Erik Nordmark <nordmark@eng.sun.com>
  Jim Solomon <solomon@rback.com>

Minutes by: Jim Solomon

Summary:
 - Mobile IPv6 is in IESG Last Call;  several implementations exist
   and some interest was expressed in having a bakeoff
 - There are numerous, disparate, proposals for enhancing Mobile IPv4
   to add new AAA functionality, to regionalize registration messages
   for local handoffs, support private address-spaces, etc.  The
   chairs request that the authors of these disparate groups work
   together to draft requirements and set out to solve them within the
   context of the working group.

I. Jim Solomon <solomon@rback.com>, Announcements

 - IESG has been asked to advance Mobile IPv6 to PS RFC.  Expect Last
   Call in a week or so.
 - A handful of Mobile IPv6 implementations have been written.  Some
   interest in a bakeoff expressed -- to be taken to the mailing list.
 - No substantial Mobile IPv4 deployment to discuss.

II. Dave Johnson <dbj@cs.cmu.edu>, Mobility Support in IPv6
    
Dave described the updates since the last draft:
 - clarification of destination options and sub-options
 - other clarifications re: prefix options
 - Abstract now states that this document confers a requirement on
   *all* IPv6 nodes
 - changes are non-controversial -- no objections from the room
 - Erik to coordinate MIPv6 interoperability testing

III. Andras Gergely Valko <andras@comet.columbia.edu>, Cellular IP

 - Mobility standards: GPRS, CDPD, UMTS IMT-2000, W-LAN, Mobile IP
 - Proposed Network has mobility mgmt, paging, handoff, but no HLR,
   MSC signalling system, etc ==> Smooth handoffs, simplicity, and
   scalability are drivers
 - Each base station reverse learns MN's location, up to the first-hop
   router (typically an FA)
 - implementations in progress for FreeBSD/WaveLAN
 - Security (hijacking, denial-of-service) was mentioned as an issue.
 - Routing loops are also possible for arbitrary topologies of Base
   Stations

IV. Martin K÷rling <Martin.Korling@era-t.ericsson.se>, IMT-2000
    Requirements on Mobile IP 

 - Requirements, not protocols, for 3G networks
 - Problems with 2002 which prevent widescale, commercial, deployment:
   security model, static public IP address (private address support),
   handoff performance, scalability
 - Issues: authentication, key dist., route optim, hierarchical
   structure, dynamic host conf, separation of control and traffic
 - Martin's main observation:  there have been a lot of proposals on
   these issues but very little discussion on the mailing list on the
   requirements for these topics.

V. Charlie Perkins <charles.perkins@eng.sun.com>, AAA Extensions for
   Mobile IP

 - AAABOF seems to indicate that a working group will be formed, with
   DIAMETER-like functionality to be defined
 - Idea is to authenticate MN's NAI (username) instead of its IP
   address, ala most remote access in the internet
 - Enhancements since last draft:  private address support,
   regionalized regitration, self-configuring agent hierarchy

VI. Mooi Choo <chuah@hoserve.ho.lucent.com>, Mobile IP Enhancements

 - proposes AAA extensions, localized mobility, and other enhancements
   to Mobile IP
 - Two implementations: Bell Labs, Malaysia Multimedia University

VII. Foo Siang Fook <engp7498@leonis.nus.edu.sg>,
     Regional Aware Foreign Agents (RAFA)
     Mobile IP extension for Private Internets Support (MPN)
     Reverse Twice Network Address Translators (RAT) 

 - more AAA enhancements (key management), fast handoffs for
   regionalized mobility, notification of old FA after handoff
 - implementation underway

X. George Fankhauser <gfa@acm.org>, RSVP and Mobile IPv6

Problem:
 - RSVP_HOP object contains home address
 - SESSION object has wrong flow id
Solution:
 - Change routers on path to match on home address?  changing core is
   not a viable option
 - Proposal to change end-systems instead to modify the RSVP messages
   and extend flows after handoffs