Networking / Beginners

Robust security networks (RSNs)

Early wireless LANs proved to have feeble built-in security. 802.11i, which was ratified in June 2004, specifies a set of improved security mechanisms that provide robust security network associations (RSNAs). Robust security network associations are formed when improved the authentication and confidentiality protocols defined in 802.11i are in use. Support for 802.11i may be composed of hardware, software, or both, depending on the exact architecture of a particular device. Hardware which does not support the improved protocols is referred to as pre-RSN capable. Many recent pre-RSN capable devices may be upgradeable to support 802.11i, but most older devices will not be upgradeable.

[Previous] [Contents] [Next]

In this tutorial:

  1. 802.11 Networks
  2. IEEE 802 Network Technology Family Tree
  3. Nomenclature and Design
  4. Types of Networks
  5. Independent networks
  6. Infrastructure networks
  7. Extended service areas
  8. Multi-BSS environments: "virtual APs"
  9. Robust security networks (RSNs)
  10. The Distribution System, Revisited
  11. Interaccess point communication as part of the distribution system
  12. Wireless bridges and the distribution system
  13. Network Boundaries
  14. 802.11 Network Operations
  15. Network Services
  16. Station services
  17. Distribution system services
  18. Confidentiality and access control
  19. Spectrum management services
  20. Mobility Support
  21. Designing Networks for Mobility