Network Working Group D. Loher
Request for Comments: 4565 Envysion, Inc.
Category: Informational D. Nelson
Enterasys Networks, Inc.
O. Volinsky
Colubris Networks, Inc.
B. Sarikaya
Huawei USA
July 2006
Evaluation of Candidate Control and Provisioning
of Wireless Access Points (CAPWAP) Protocols
Status of This Memo
This memo provides information for the Internet community. It does
not specify an Internet standard of any kind. Distribution of this
memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (2006).
Abstract
This document is a record of the process and findings of the Control
and Provisioning of Wireless Access Points Working Group (CAPWAP WG)
evaluation team. The evaluation team reviewed the 4 candidate
protocols as they were submitted to the working group on June 26,
2005.
Table of Contents
1. Introduction ....................................................3
1.1. Conventions Used in This Document ..........................3
1.2. Terminology ................................................3
2. Process Description .............................................3
2.1. Ratings ....................................................3
3. Member Statements ...............................................4
4. Protocol Proposals and Highlights ...............................5
4.1. LWAPP ......................................................5
4.2. SLAPP ......................................................6
4.3. CTP ........................................................6
4.4. WiCoP ......................................................7
Loher, et al. Informational [Page 1]
RFC 4565 Evaluation of Candidate CAPWAP Protocols July 2006
5. Security Considerations .........................................7
6. Mandatory Objective Compliance Evaluation .......................8
6.1. Logical Groups .............................................8
6.2. Traffic Separation .........................................8
6.3. STA Transparency ...........................................9
6.4. Configuration Consistency .................................10
6.5. Firmware Trigger ..........................................11
6.6. Monitor and Exchange of System-wide Resource State ........12
6.7. Resource Control ..........................................13
6.8. Protocol Security .........................................15
6.9. System-Wide Security ......................................16
6.10. 802.11i Considerations ...................................17
6.11. Interoperability .........................................17
6.12. Protocol Specifications ..................................18
6.13. Vendor Independence ......................................19
6.14. Vendor Flexibility .......................................19
6.15. NAT Traversal ............................................20
7. Desirable Objective Compliance Evaluation ......................20
7.1. Multiple Authentication ...................................20
7.2. Future Wireless Technologies ..............................21
7.3. New IEEE Requirements .....................................21
7.4. Interconnection (IPv6) ....................................22
7.5. Access Control ............................................23
8. Evaluation Summary and Conclusions .............................24
9. Protocol Recommendation ........................................24
9.1. High-Priority Recommendations Relevant to
Mandatory Objectives ......................................25
9.1.1. Information Elements ...............................25
9.1.2. Control Channel Security ...........................25
9.1.3. Data Tunneling Modes ...............................26
9.2. Additional Recommendations Relevant to Desirable
Objectives ................................................27
9.2.1. Access Control .....................................27
9.2.2. Removal of Layer 2 Encapsulation for Data
Tunneling ..........................................28
9.2.3. Data Encapsulation Standard ........................28
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