1. WLAN Segregated Data Services
November 2007July 2007
July 2007
IEEE P /2491r2doc.: IEEE /xxx2r0
doc.: IEEE /xxx2r0
November 2007
WLAN Segregated Data Services
Date:
Authors:
Slide 1
D. Eastlake (Motorola), G. Hiertz (Philips)
D. Eastlake (Motorola), G. Hiertz (Philips)Donald Eastlake 3rd, Motorola
Donald Eastlake 3rd, Motorola

2. IEEE P802.11-07/2491r2doc.: IEEE 802.11-07/xxx2r0
July 2007
November 2007July 2007
IEEE P /2491r2doc.: IEEE /xxx2r0
doc.: IEEE /xxx2r0
November 2007
Abstract
networks need VLANs or a similar mechanism for segregated data services. The need varies from a mild requirement to distinguish “visitors” from “residents” in a one AP home network to much stronger and more complex requirements in enterprise, municipal, and other systems. Scenarios and requirements for adding segregated services to IEEE are presented along with some comments on prospective or under development mechanisms to met those requirements.
Slide 2
D. Eastlake (Motorola), G. Hiertz (Philips)
D. Eastlake (Motorola), G. Hiertz (Philips)Donald Eastlake 3rd, Motorola
Donald Eastlake 3rd, Motorola

3. IEEE P802.11-07/2491r2doc.: IEEE 802.11-07/xxx2r0
July 2007
November 2007July 2007
IEEE P /2491r2doc.: IEEE /xxx2r0
doc.: IEEE /xxx2r0
November 2007
Some Motivations
Segregating traffic for “visitors” who should only have access to the Internet and limited facilities, from “insider” traffic.
Provision of different services for free, subscription, and municipal services in Hot Zone or Municipal systems.
In mesh environments, ability to safely forward data through nodes with limited trust.
To enable aggregation of traffic over a single infrastructure for efficient deployment.
Slide 3
D. Eastlake (Motorola), G. Hiertz (Philips)
D. Eastlake (Motorola), G. Hiertz (Philips)Donald Eastlake 3rd, Motorola
Donald Eastlake 3rd, Motorola

4. November 2007
Example Scenario Ia (unified infrastructure, single interface end stations)
Internet
Firewall
Protected Services
MAP 2
MAP 1
AP 2
Local Station
Local Station
Local Station
Guest Station
Local VLAN
Guest VLAN
Wired Connection
Local Station
Guest Station
D. Eastlake (Motorola), G. Hiertz (Philips)

5. End Point Assesment and Remediation
November 2007
Example Scenario Ib (unified infrastructure, single interface end stations)
Other Services
End Point Assesment and Remediation
MAP 2
MAP 1
AP 2
Healthy Station
Healthy Station
Healthy Station
Healthy Station
Infected Station
Normal VLAN
Assessment and Remediation VLAN
Wired Connection
New Station
D. Eastlake (Motorola), G. Hiertz (Philips)

6. Example Scenario II (diverse mesh, multi-interface mesh points)
November 2007
Example Scenario II (diverse mesh, multi-interface mesh points)
Internet
Organization 2 Infrastructure
Org 2 MPP
Organization 1 Infrastructure
Org 1 MPP
Organization 1 Service
Organization 2 Service
Local Mesh Service
Org 1 MP
Org 2 MP
Org 2 MP
Org 1 MP
Org 3 MP
Org 2 MP
Org 1 MP
D. Eastlake (Motorola), G. Hiertz (Philips)

7. Scenario II without segregated data services
November 2007
Scenario II without segregated data services
Internet
Organization 1 Infrastructure
Organization 2 Infrastructure
Organization 1 Service
Organization 2 Service
Org 2 MPP
Org 1 MPP
Org 1 MP
Org 2 MP
Org 2 MP
Org 1 MP
Org 3 MP
Org 2 MP
Org 1 MP
D. Eastlake (Motorola), G. Hiertz (Philips)

8. IEEE P802.11-07/2491r2doc.: IEEE 802.11-07/xxx2r0
July 2007
November 2007July 2007
IEEE P /2491r2doc.: IEEE /xxx2r0
doc.: IEEE /xxx2r0
November 2007
Requirements
Advertising Availability of Services
Associating/Authenticating/Authorizing for One or more Specific Services
Multiple Service Security Channels Between Two Stations
Transit Frame Labelling
Protection of Segregated Data from Unauthorized Access
Configuration and Management
Slide 8
D. Eastlake (Motorola), G. Hiertz (Philips)
D. Eastlake (Motorola), G. Hiertz (Philips)Donald Eastlake 3rd, Motorola
Donald Eastlake 3rd, Motorola

9. 1. Advertising Availability of Services
July 2007
November 2007July 2007
IEEE P /2491r2doc.: IEEE /xxx2r0
doc.: IEEE /xxx2r0
November 2007
1. Advertising Availability of Services
Current practice: Transmit multiple Beacons, as is done at IEEE 802 meetings.
Work in progress: General Advertisement Service (GAS) mechanisms in TGu (Interworking with External Networks).
Includes SSIDC (SSID Container IE) for transmission of multiple SSIDs (with or without multiple BSSIDs) in a single beacon.
No additional chartered work appears necessary for this requirement.
Slide 9
D. Eastlake (Motorola), G. Hiertz (Philips)
D. Eastlake (Motorola), G. Hiertz (Philips)Donald Eastlake 3rd, Motorola
Donald Eastlake 3rd, Motorola

10. 2. Associating/Authenticating/Authorizing for a Specific Service
July 2007
November 2007July 2007
IEEE P /2491r2doc.: IEEE /xxx2r0
doc.: IEEE /xxx2r0
November 2007
2. Associating/Authenticating/Authorizing for a Specific Service
Current practice: Only one association, i security.
Work in progress:
TGw (Protected Management Frames) to extends security to some control messages
TGs (Mesh Networking) with authentication to mesh distinguished from authentication to an AP
TGu (Interworking with External Networks) different credentials/authentication for different back end carriers
Possible new work: Ability to have different credentials / authentication for different Services/VLANs.
Slide 10
D. Eastlake (Motorola), G. Hiertz (Philips)
D. Eastlake (Motorola), G. Hiertz (Philips)Donald Eastlake 3rd, Motorola
Donald Eastlake 3rd, Motorola

11. 3. Multiple Service Security Channels Between Stations
July 2007
November 2007July 2007
IEEE P /2491r2doc.: IEEE /xxx2r0
doc.: IEEE /xxx2r0
November 2007
3. Multiple Service Security Channels Between Stations
Current Practice:
AP can have multiple security associations but each with a different end station.
Two stations can have multiple IPsec security associations or the like at the application level.
Work in Progress: TGs (Mesh Networking) permits multiple associations but each with a different mesh point.
Possible new work:
Different security associations for different services/VLANs
Need to handling unicast, multicast, and broadcast
Development of a new Authenticator PAE function that can manage multiple SAs with a given neighbor
Slide 11
D. Eastlake (Motorola), G. Hiertz (Philips)
D. Eastlake (Motorola), G. Hiertz (Philips)Donald Eastlake 3rd, Motorola
Donald Eastlake 3rd, Motorola

12. 4. Transit Frame Labelling
July 2007
November 2007July 2007
IEEE P /2491r2doc.: IEEE /xxx2r0
doc.: IEEE /xxx2r0
November 2007
4. Transit Frame Labelling
Current Practice:
Current standard explicitly permits 802.1Q-Tag in payload ( Annex M) but Q-Tag’s priority and VLAN ID fields are otherwise ignored.
Only obvious way is to use different MAC addresses.
Work in Progress: none...
Possible new work:
Header addition to distinguish Service/VLAN?
Other mechanisms?
Slide 12
D. Eastlake (Motorola), G. Hiertz (Philips)
D. Eastlake (Motorola), G. Hiertz (Philips)Donald Eastlake 3rd, Motorola
Donald Eastlake 3rd, Motorola

13. 5. Protection of Segregated Data from Unauthorized Access
July 2007
November 2007July 2007
IEEE P /2491r2doc.: IEEE /xxx2r0
doc.: IEEE /xxx2r0
November 2007
5. Protection of Segregated Data from Unauthorized Access
Current Practice: Have to use IPsec or some similar application level mechanism to protect data at intermediate hops.
Work in Progress: none...
Possible new work:
Optional edge-to-edge security between original source station and final destination station. But not all services would require this. (If VLAN mapping is possible, authentication should be keyed to SSID, not VLAN ID.)
Slide 13
D. Eastlake (Motorola), G. Hiertz (Philips)
D. Eastlake (Motorola), G. Hiertz (Philips)Donald Eastlake 3rd, Motorola
Donald Eastlake 3rd, Motorola

14. 6. Configuration and Management
July 2007
November 2007July 2007
IEEE P /2491r2doc.: IEEE /xxx2r0
doc.: IEEE /xxx2r0
November 2007
6. Configuration and Management
Current Practice:
SNMP (Simple Network Management Protcol)
GVRP/MVRP (VLAN Registration Protocols)
Proprietary command line interfaces and protocols
Work in Progress: SNMP MIB (Management Information Base) additions by TGu (Interworking with External Networks)
Possible new work:
MIB additions or other mechanisms for configuration and management including setting-up and deleting VLANs
Slide 14
D. Eastlake (Motorola), G. Hiertz (Philips)
Page 14
D. Eastlake (Motorola), G. Hiertz (Philips)Donald Eastlake 3rd, Motorola
Donald Eastlake 3rd, Motorola

15. IEEE P802.11-07/2491r2doc.: IEEE 802.11-07/xxx2r0
July 2007
November 2007July 2007
IEEE P /2491r2doc.: IEEE /xxx2r0
doc.: IEEE /xxx2r0
November 2007
Results in Waikoloa
In WNG Standing Committee
Moved, To request the IEEE Working Group to approve and forward to the IEEE 802 Executive Committee the creation of a “WLAN Segregated Data Services” Study Group to consider how best to meet requirements as follows and how best to coordinate such activities with 802.1:
labeling frames per service; security of data within a service; and the configuration and management of such services.
Moved: Donald Eastlake 3rd Seconded: Guido Hiertz
Yes: 22 No: 0 Abstain: 4 (100% approval)
In Working Group at Closing Plenary
Yes: 19 No: 9 Abstain: 24 (67.85% approval)
Slide 15
D. Eastlake (Motorola), G. Hiertz (Philips)
Page 15
D. Eastlake (Motorola), G. Hiertz (Philips)Donald Eastlake 3rd, Motorola
Donald Eastlake 3rd, Motorola

16. Motion for Closing Plenary in Atlanta
November 2007
Motion for Closing Plenary in Atlanta
Moved, To approve and forward to the IEEE 802 Executive Committee for their approval the creation of a “WLAN Segregated Data Services” Study Group to consider how best to meet requirements as follows in and how best to coordinate such activities with 802.1:
labeling frames per service; security of data within such services; and the configuration and management of such services.
Moved: Donald Eastlake 3rd Seconded: Stephen McCann
D. Eastlake (Motorola), G. Hiertz (Philips)

17. Projected Near Term Segregated Data Services Schedule
November 2007
Projected Near Term Segregated Data Services Schedule
November 2007: Working Group approval
March 2008: 802 Executive Committee approval
May 2008: First Study Group Meeting
By that time, 3 Task Groups should have completed. Scheduled final ExecComm vote:
November 2007: TGk
March 2008: TGr
March 2008: TGy
D. Eastlake (Motorola), G. Hiertz (Philips)

18. IEEE P802.11-07/2491r2doc.: IEEE 802.11-07/xxx2r0
July 2007
November 2007July 2007
IEEE P /2491r2doc.: IEEE /xxx2r0
doc.: IEEE /xxx2r0
November 2007
References
Draft s D1.07 – ESS Mesh Networking
Draft u D1.01 – Interworking with External Networks
Draft w D3.0, – Protected Management Frames
IEEE Standard – WLANs
IEEE Standard 802.1Q-2005 – VLANs
IETF RFC 3410 – SNMP
Slide 18
D. Eastlake (Motorola), G. Hiertz (Philips)
D. Eastlake (Motorola), G. Hiertz (Philips)Donald Eastlake 3rd, Motorola
Donald Eastlake 3rd, Motorola