IEEE MEDIA INDEPENDENT HANDOVER DCN: Title: IETF Liaison Report Date Submitted: November 15, 2007 Presented at IEEE session 23 in Atlanta Authors or Source(s): Yoshihiro Ohba Abstract: IETF Liaison Report as of November 2007

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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 by L3 and above transport” of D07-01 will be added to the draft Rev -05 will be submitted by Nov 19 Next Step: IESG Evaluation

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

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

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

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

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