IEEE 802.21 MEDIA INDEPENDENT HANDOVER DCN: 21-06-0513-01-0000 Title: Liaison Report – 802.11 Work Related to 802.21 Date Submitted: January 19, 2006 Presented at IEEE 802.21 session in Hawaii Authors or Source(s): David Hunter Abstract: 802.11r is developing the 802.11 amendment for Fast BSS Transitions. This amendment will become a requirement for 802.21 operations with 802.11. David Hunter Panasonic January 19, 2006 January 19, 20006 David Hunter, Panasonic

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 <http://standards.ieee.org/guides/opman/sect6.html#6.3> and in Understanding Patent Issues During IEEE Standards Development http://standards.ieee.org/board/pat/guide.html>  David Hunter Panasonic January 19, 2006

Liaison Report IEEE 802.11 work most related to 802.21 David Hunter Panasonic hunter@timefactor.com David Hunter Panasonic January 19, 2006

802.11 Groups Related to 802.21 (the usual suspects) 802.11k – Radio Resource Measurement Measurements provided for runtime adjustment of radios Available to internal STA components, higher layers, and external devices 802.11r – Fast BSS Transition Between BSSes within the same ESS Interacts with 802.11k (especially neighbor reports) 802.11u – Interworking with External Networks MAC changes to accommodate, among others, 802.21 Depends on 802.11k and 802.11r 802.11v – Wireless Network Management Management protocol additions AP-AP negotiations; load balancing; additional access controls Interacts with 802.11k 802.11w – Protecting Management Frames Security for management frames, including broadcast frames Depends on 802.11r and perhaps 802.11u David Hunter Panasonic January 19, 2006

802.11r Background Fast Transition: optional capability of APs and STAs TAP = Fast Transition Enabled AP TSTA = Fast Transition Enabled STA Five stages of BSS – BSS transition: Scanning – active or passive for other APs in the area Authentication with a (one or more) target TAP Re-association to establish connection at target TAP Have a connection, but still can't *DO* anything… PTK derivation – 4-way handshake of session keys QoS admission control to re-establish QoS streams Current work: exactly how are keys moved around? Including new IP-based protocol(s) David Hunter Panasonic January 19, 2006

802.11r Letter Ballot November: issued Amendment Draft 1.0 for Letter Ballot Voting results: 518 : Voter Pool 268 : Approve   64 : Disapprove   72 : Abstain 404: Total Votes Cast Return Ratio: 78.0 % This return ratio is valid if it exceeded the 75% acceptance level (518 Voters) Ballot Approval: 80.7 % With this result the balloted draft passed both the 75% approval level and the 75% return ratio acceptance level per the 802.11 WG P&P David Hunter Panasonic January 19, 2006

802.11r This Session Comment Resolution Received 1287 comments And more comment resolution Received 1287 comments 911 were editorial and minor technical points Over 1100 (including the 911) were resolved this week Remainder left to teleconferences Only 78 comments – about 6% -- remaining However, these are the most difficult comments Currently 802.11r is deciding whether to have additional ad-hoc meeting to cover these David Hunter Panasonic January 19, 2006

802.11r This Session, 2 Many small changes all over the place New MLME SAP for MAC-RRB exchange How PMK-R1 keys are distributed within a Mobility Domain Requesting new IEEE Assigned Numbers Auth Algorithm, Status Codes, Management Action Code, Element IDs, AKM suite selector types List in 11-06-0181-01-000r-request-assigned-numbers.ppt RIC management changes But some failed Coverage of MIC calculations to cover Vendor Specific IEs David Hunter Panasonic January 19, 2006

TGr Key Hierarchy - Just a Reminder (stolen directly from document 11-05-1216-00-000r-key-holder-protocol-requirements.ppt) AAA Server MSK MD-ID = MAC Address of MDC Mobility Domain Controller MDC manages keys for distributing PMK-R1; Authorization, Identity and Attestation of Authenticators R1KH-ID R0KH-ID R1KH-ID PMK-R0 PMK-R1 AP3 AP1 AP2 TSTA TSTA David Hunter Panasonic January 19, 2006 January 19, 20006 David Hunter, Panasonic

802.11r Current Status New Drafts Draft 2 will go to Letter Ballot Intermediate one issued this meeting Next will come after the teleconferences Draft 2 will go to Letter Ballot Will be generated after teleconferences See also 11-06-1284-13-000r-d1-0-comment-resolutions.xls Continuing Issues: How to manage key transfers New L3 (and above) functionality from the IETF Key Transfer Protocol Working Group: 11-06-0042-00 How to securely transfer PMK-R1 key from R0KH to R1KH Tending toward Kerberos work (vs. EAP version, IKEv2, etc.) David Hunter Panasonic January 19, 2006

802.11r Timeline Comment resolution slow IETF support Typical 802.11 problem: the moment the document goes to letter ballot, most of the contributors move to another group 802.11r comment resolution now being done by about 10 core people While the comments were made by 404 voters Will finish comments by March Plenary and issue new Letter Ballot IETF support Key Management Goal is to have a new RFC issued within a year Limitation: cannot complete before 802.11am completes Also has 802.11k dependencies that may have to be backed out if 802.1k doesn’t finish Working hard to avoid 802.11w dependencies Sponsor ballot still expected before 802.21 sponsor ballot David Hunter Panasonic January 19, 2006 January 19, 20006 David Hunter, Panasonic