Mobility EXTensions for IPv6 (mext)
-----------------------------------

 Charter
 Last Modified: 2011-01-25

 Current Status: Active Working Group

 Chair(s):
     Julien Laganier  <julien.ietf@gmail.com>
     Marcelo Bagnulo  <marcelo@it.uc3m.es>

 Internet Area Director(s):
     Ralph Droms  <rdroms.ietf@gmail.com>
     Jari Arkko  <jari.arkko@piuha.net>

 Internet Area Advisor:
     Jari Arkko  <jari.arkko@piuha.net>

 Mailing Lists: 
     General Discussion:mext@ietf.org
     To Subscribe:      https://www.ietf.org/mailman/listinfo/mext
     Archive:           http://www.ietf.org/mail-archive/web/mext

Description of Working Group:

Mobile IPv6 specifies routing support which permits an IPv6 host to
continue using its home address as it moves around the Internet,
enabling continuity of sessions. Mobile IPv6 supports transparency above
the IP layer, including maintenance of active transport level sessions.
In addition, network mobility (NEMO) mechanisms built on top of Mobile
IPv6 allow managing the mobility of an entire network, as it changes its
point of attachment to the Internet. The base specifications consist of:

  o RFC 3775 (Mobile IPv6)
  o RFC 3963 (NEMO)
  o RFC 4877 (Mobile IPv6 Operation with IKEv2)
  o RFC 5555 (Dual Stack Mobile IPv6)
  o RFC 5648 (Multiple Care-of Addresses Registration)
  o RFC 5846 (Binding Revocation)
  o RFC-to-be (Flow Binding Policy Transport and Flow Binding Policy 
    Format)

The MEXT Working Group continues the work of the former MIP6, NEMO, and
MONAMI6 Working Groups.

The primary goal of MEXT will be to enhance base IPv6 mobility by
continuing work on developments that are required for wide-scale
deployments and specific deployment scenarios. Additionally, the working
group will ensure that any issues identified by implementation and
interoperability experience are addressed, and that the base
specifications are maintained. The group will also produce informational
documentation, such as design rationale documents or description of
specific issues within the protocol.

The MEXT WG will also explore experimental alternative security
mechanisms. The security mechanism specified in the existing standard
track RFCs (RFC3775bis, RFC4877) remains the mandatory to implement
mechanism that guarantees interoperability between different
implementations. The MEXT WG is chartered to deliver one or more
experimental alternative mechanisms. All the alternative solutions will
be published as experimental RFCs.

The working group will also work on operational considerations on
setting up Mobile IPv6 networks so that traffic is distributed 
in an optimal way, for instance by using existing protocol mechanisms
to select the closest home agents for new clients.

In addition, the working group will bring to completion earlier work on
prefix delegation for NEMO, RADIUS  support for Mobile IPv6, Mobile IPv6
operation with firewalls, and home agent reliability specifications.

Work items related to base specification maintenance include: Create and
maintain issue lists that are generated on the basis of implementation
and interoperability experience. Address specific issues with specific
updates or revisions of the base specification. Currently known specific
issues include support for overlapping (private) IPv4 home addresses,
negotiation of the protection required for payload traffic, and
discovery of the home agent address in IPv4-only networks.

 Goals and Milestones:

   Done         Submit I-D 'Mobile IPv6 Vendor Specific Option' to IESG for 
                publication as a Proposed Standard 

   Done         Submit I-D 'Mobile IPv6 Experimental Allocations' to IESG for 
                publication as a Proposed Standard 

   Done         Submit I-D 'Mobile IPv6 Dual-Stack Operation' to IESG for 
                publication as a Proposed Standard. 

   Done         Submit I-D 'Motivation for Authentication I-D' to IESG for 
                publication as Informational. 

   Done         Submit Multiple CoA Registration to IESG 

   Done         Submit I-D 'Goals for AAA HA Interface' to IESG for publication 
                as Informational. 

   Done         Submit -00 draft on Route Optimization Needs for Automobile and 
                Highway Deployments 

   Done         Submit -00 draft on Route Optimization Needs for Aircraft and 
                Spacecraft Deployments 

   Done         Submit I-D 'Mobility Header Home Agent Switch Message' to IESG 
                for publication as a Proposed Standard 

   Done         Submit final doc on Route Optimization Needs for Aircraft and 
                Spacecraft Deployments, for Informational 

   Done         Submit 00 draft on Binding Revocation 

   Done         Submit the final doc on MIB for NEMO Basic Support to the IESG, 
                for Proposed Standard 

   Done         Submit draft on Binding Revocation to IESG 

   Done         Submit the final doc on Prefix Delegation for NEMO to the IESG, 
                for Proposed Standard 

   Done         Submit I-D(s) related to specific updates and corrections of 
                RFC 3775 to IESG for publication as Proposed Standard. 

   Jun 2011       Submit I-D 'Mobile IPv6 Operation with Firewalls' to IESG for 
                publication as Informational. 

   Jun 2011       Submit I-D 'Home agent reliability' to IESG for publication as 
                a Proposed Standard. 

   Aug 2011       Submit I-Ds on alternative security mechanisms to the IESG for 
                publication as Experimental. 

   Sep 2011       Submit I-D 'Overlapping IPv4 address support' to IESG for 
                publication as Proposed Standard. 

   Sep 2011       Submit I-D 'Home agent discovery in IPv4-only networks via 
                DHCP' to IESG for publication as Proposed Standard. 

   Oct 2011       Submit I-D 'Operational considerations for distributed use of 
                Mobile IPv6' for publication as Informational. 

   Dec 2011       Submit I-D 'Negotiation of the protection for payload traffic' 
                to IESG for publication as Proposed Standard. 

   Dec 2011       Submit the I-D 'RADIUS Mobile IPv6 Support' to IESG for 
                publication as a proposed standard. 


 Internet-Drafts:

Posted Revised         I-D Title   <Filename>
------ ------- --------------------------------------------
Jun 2006 May 2011   <draft-ietf-mip6-hareliability-09.txt>
                Home Agent Reliability Protocol (HARP) 

Oct 2008 Mar 2011   <draft-ietf-mext-firewall-admin-04.txt>
                Guidelines for firewall administrators regarding MIPv6 traffic 

Oct 2008 Mar 2011   <draft-ietf-mext-firewall-vendor-04.txt>
                Guidelines for firewall vendors regarding MIPv6 traffic 

Mar 2011 Mar 2011   <draft-ietf-mext-mip6-tls-00.txt>
                Transport Layer Security-based Mobile IPv6 Security Framework 
                for Mobile Node to Home Agent Communication 

 Request For Comments:

  RFC   Stat Published     Title
------- -- ----------- ------------------------------------
RFC5488 PS   Apr 2009    Network Mobility (NEMO) Management Information Base 

RFC5555 PS   Jun 2009    Mobile IPv6 Support for Dual Stack Hosts and Routers 

RFC5637 I    Sep 2009    Authentication, Authorization, and Accounting (AAA) 
                       Goals for Mobile IPv6 

RFC5648 PS   Oct 2009    Multiple Care-of Addresses Registration 

RFC5522 I    Oct 2009    Network Mobility Route Optimization Requirements for 
                       Operational Use in Aeronautics and Space Exploration 
                       Mobile Networks 

RFC5846 PS   Jun 2010    Binding Revocation for IPv6 Mobility 

RFC6088 PS   Jan 2011    Traffic Selectors for Flow Bindings 

RFC6089 PS   Jan 2011    Flow Bindings in Mobile IPv6 and Network Mobility (NEMO) 
                       Basic Support 

RFC6275 PS   Jul 2011    Mobility Support in IPv6