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IEEE 802.21 MEDIA INDEPENDENT HANDOVER

DCN: 21-07-0395-00-0000

Title: IETF Liaison Report

Date Submitted: November 15, 2007

Presented at IEEE 802.21 session 23 in Atlanta

Authors or Source(s):

 Yoshihiro Ohba

Abstract: IETF Liaison Report as of November 2007

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IEEE 802.21 presentation release statementsThis 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> 

IEEE 802.21 presentation release statementsThis 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 <http://standards.ieee.org/guides/bylaws/sect6-7.html#6> and in Understanding Patent Issues During IEEE Standards Development http://standards.ieee.org/board/pat/faq.pdf> 

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MIPSHOP WG (1/2) MIS Problem Statement Draft

• draft-ietf-mipshop-mis-ps-04.txt

• AD Evaluation done• Issue on proxy scenario• Proxy scenario will be removed from the draft

• Another review by DCCP / IPDVB WG chair• Issue on security requirement

• Annex J “Requirements to support 802.21 by L3 and above transport” of 802.21 D07-01 will be added to the draft

• Rev -05 will be submitted by Nov 19

• Next Step: IESG Evaluation

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MIPSHOP WG (2/2) MIS Transport Solution Draft

• draft-melia-mipshop-mstp-solution-00.txt

• Initial Review by : David Griffith, Yoshihiro Ohba

• Issue on “Either TCP or UDP” requirements• Suggested to allow other transports making TCP and UDP as mandatory supported

transports for the server side • Issue on requirement on DHCP authentication option for DHCP-based

PoS discovery

• Issue on TLS vs. (D)TLS

• Rev -01 will be submitted by Nov 19

• Next Step: Gain consensus to be a MIPSHOP WG draft

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HOKEY WG (1/3)Re-authentication related drafts

• Reauthentication Problem Statement draft: draft-ietf-hokey-reauth-ps-07.txt

• Ready for AD Evaluation

• Reauthentication Solution: draft-ietf-hokey-erx-07.txt

• WG Last Call completed• Re-auth DoS attack mitigation by multiple link-layer SAs• Added crypto-algorithm agility• ERP server and DSRK server co-location vs. separation

• ERP assumes that ERP server is co-located on DSRK server

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HOKEY WG (2/3)Pre-authentication Problem Statement

• draft-ietf-hokey-preauth-ps-01.txt

• Reviewed by : Ajay Rajkumer and Maryna Komarova

• Excluded link-layer pre-authentication discussion (out of scope)

• Added description on the provisioning of the servers with database for authenticator discovery

• Added recommendation on non-cryptographic filtering at candidate authenticators

• Added a requirement on protection for context binding

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HOKEY WG (3/3)Three Party Key Distribution Draft

• draft-ietf-hokey-key-mgm-01.txt

• Simplification (28 pages -> 18 pages)

• Consistency with other HOKEY draft - Added comprehensive mapping between different scenarios and key distribution parameters

• Added recursively combined key distribution example for optimized hierarchical key distribution

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DNA WG

• Reality check: comments from OS vendors that the DNA protocol (draft-ietf-dna-protocol-06) is too complex to implement

• Router changes are needed

• Handling of corner cases adds complexity to normal use cases

• Some of the DNA Goals are not really necessary/useful

• A simpler version of DNA protocol has been proposed:draft-krishnan-dna-simple-00.txt