IETF Liaison Report

1
IETF Liaison Report

• March 2003
• Dorothy Stanley Agere Systems
• IEEE 802.11 Liaison To/From IETF
• http//www.drizzle.com/aboba/IETF56/EAP/

2
Overview

• IETF
• TGi Solution IETF
• IETF - 802.11f RADIUS Review
• Next Meetings

3
IETF

• Internet Engineering Task Force, www.ietf.org
• The IETF is the principal body engaged in the
  development of new internet standard
  specifications
• See RFC 3160, Tao of IETF A novice's guide to
  the IETF
• Over 50 active working groups

4
802.11i Authentication Key Management
Out of scope for 802.11i In scope for IETF
Wireless Station
Authentication Server
Access Point
EAP-TLS, EAP-SIM, EAP-TTLS, EAP-PEAP, etc
EAP
802.1X (EAPoL)
RADIUS
UDP/IP
802.11
5
TGi Requests

• January 2002 - Letter to IETF requesting work,
  see document 02/040
• EAP Method Definition to meet 802.11i
  requirements
• Specification of EAP Keying Framework
• RADIUS Extensions for Key Delivery
• March 2003 Letter To IETF providing
  information, see document 03/243
• EAP Method Credentials Key Strength
• Future Letter re EAP Method Standards Track
  Requests

6
IETF Responses

• EAP working group formed
• http//www.ietf.org/proceedings/02nov/136.htm
• Updating the base EAP specification, RFC 2284,
  see http//www.ietf.org/internet-drafts/draft-ietf
  -eap-rfc2284bis-01.txt
• EAP Key Hierarchy Specification
• A problem statement has been developed, see
  http//www.ietf.org/internet-drafts/draft-aboba-pp
  pext-key-problem-05.txt
• RADIUS and RADIUS attribute usage with EAP
• http//www.ietf.org/internet-drafts/draft-aboba-ra
  dius-rfc2869bis-09.txt

7
IETF Requests - TGf

• IETF Review of TGf RADIUS usage
• RADIUS defined in IETF

8
TGf Response

• IETF Review Welcome
• Since TGf is nearly complete, use Request for
  Interpretation Process
• Investigate Pre-publication release to IETF

9
IEEE 802.11-IETF InteractionRADIUS

• IETF Specifies RADIUS, see RFC2869, RFC 2865
• Example 802.1X
• See http//www.ietf.org/internet-drafts/draft-cong
  don-radius-8021x-23.txt
• RADIUS usage information as Informative Annex
• Process to Manage Interaction - If TG spec uses
  modifies RADIUS usage
• Extract RADIUS specs into Internet Draft
• IETF Review of Internet Draft

10
Additional IETF Activity of Interest

• Seamoby Context transfer across access points
• Potential TGk Requirements
• Primary Responsibility of the TG to identify
  interactions/dependencies and specify
  work/requirements
• Other activities of interest IEEE 802.11 TGs
• AES-CCM RFC
• Key distribution for fast roaming

11
IETF Meetings

• Next two meetings
• March 17-21, 2003, San Francisco
• July 17-21, 2003, Vienna, Austria
• 2000 Participants per meeting
• 802.11 WLAN used at meetings
• http//www.ietf.org