1. 21-07-xxxx-00-0000 IEEE 802.21 MEDIA INDEPENDENT HANDOVER DCN: 21-07-xxxx-00-0000 Title: IETF Liaison Report Date Submitted: July 19, 2007 Presented at IEEE 802.21 session #21 in San Francisco Authors or Source(s): Yoshihiro Ohba Abstract: This is IETF liaison report as of July 2007.

2. 21-07-xxxx-00-0000 IEEE 802.21 presentation release statements This document has been prepared to assist the IEEE 802.21 Working Group. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE 802.21. The contributor is familiar with IEEE patent policy, as outlined in Section 6.3 of the IEEE-SA Standards Board Operations Manual and in Understanding Patent Issues During IEEE Standards Development http://standards.ieee.org/board/pat/guide.html> Section 6.3 of the IEEE-SA Standards Board Operations Manualhttp://standards.ieee.org/guides/opman/sect6.html#6.3 http://standards.ieee.org/board/pat/guide.html IEEE 802.21 presentation release statements This document has been prepared to assist the IEEE 802.21 Working Group. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE 802.21. The contributor is familiar with IEEE patent policy, as stated in Section 6 of the IEEE-SA Standards Board bylaws and in Understanding Patent Issues During IEEE Standards Development http://standards.ieee.org/board/pat/faq.pdf> Section 6 of the IEEE-SA Standards Board bylawshttp://standards.ieee.org/guides/bylaws/sect6-7.html#6 http://standards.ieee.org/board/pat/faq.pdf

3. 21-07-xxxx-00-0000 NSIS WG GIST draft failed to pass IESG evaluation IESG evaluation (https://datatracker.ietf.org/idtracker/ballot/1546/) “Yes” or “No-Objection”: 8 “Discuss”: 2 “Abstain”: 6 Unvoted: 3 “Yes" or "No-Objection" positions from 2/3 of non-recused ADs, with no "Discuss" positions, are needed for approval The draft needs to go through a new WG last call and IETF last call to be a Proposed Standard RFC

4. 21-07-xxxx-00-0000 MIPSHOP WG “Mobility Services Transport: Problem Statement” draft WG Last Call completed in May The latest draft: http://www.ietf.org/internet-drafts/draft-ietf-mipshop-mis-ps-02.txt http://www.ietf.org/internet-drafts/draft-ietf-mipshop-mis-ps-02.txt A liaison statement sent to MIPSHOP Purpose: to encourage and accelerate the DT work Transport solution: Design team report in IETF68 in March http://www3.ietf.org/proceedings/07mar/slides/mipshop-10/sld1.htm Identified three major issues: Layer Split between MSTP and MSTP User (e.g., MIHF and MIH User) Node Discovery (possibility of multiple discovery options) and Message Routing (multi-hop related issue) Security and Resilience The DT is still discussing design issues Progress of the work is slower than expected Further update to be reported in IETF69, including today’s discussion points on MIH transport

5. 21-07-xxxx-00-0000 HOKEY WG HOKEY started to work on a 3-party key distribution protocol draft-ietf-hokey-key-mgm-00.txt HOKEY re-authentication solution draft became a WG draft draft-ietf-hokey-erx-03.txt There are inconsistency among HOKEY WG drafts in terms of Key hierarchy (USRK, DSRK, USDSRK) Different key hierarchy definitions in emsk-hierarchy draft and key-mgm draft Key distribution mechanism hokey-erx draft does not follow key distribution mechanism defined in hokey-key- mgm draft Pre-authentication discussion will start from IETF59 Big issue: HOKEY charter does not allow inter-technology pre-auth Problem statement and AAA requirements drafts are still important

6. 21-07-xxxx-00-0000 DNA WG draft-ietf-dna-link-information-06 (Link-layer Event Notifications for Detecting Network Attachments) In RFC editor queue draft-ietf-dna-protocol-06.txt (DNAv6) WG Last Call ended on July 18, 2007

7. 21-07-xxxx-00-0000 Mobility WGs being merged MIP6, NEMO and MONAMI6 WGs are being merged into a new single WG, MEXT (Mobility EXTentions for IPv6) Mailing list: https://www1.ietf.org/mailman/listinfo/mexthttps://www1.ietf.org/mailman/listinfo/mext Waiting for WG creation approval from IESG Three purposes: (A) enhance base IPv6 mobility by continuing work on developments that are required for wide-scale deployments and specific deployment scenarios (B) the working group will ensure that any issues identified by implementation and interoperability experience are addressed, and that the base specifications are maintained (C) The group will also produce informational documentation, such as design rationale documents or description of specific issues within the protocol