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Understanding Wireless Networking: Governing Bodies, Standards, Benefits, and Security

This comprehensive overview of wireless networking delves into the significant governing bodies shaping the field, such as the FCC, IETF, IEEE, and Wi-Fi Alliance. It covers the key benefits of wireless networks including mobility, cost reduction, and flexibility, alongside potential drawbacks like dead spots, interference, and security challenges. Additionally, the document details the various wireless standards (IEEE 802.11) and architectures (point-to-point, multipoint, WISP) used in modern connectivity, along with security protocols such as WEP, WPA, and EAP methods for robust network protection.

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Understanding Wireless Networking: Governing Bodies, Standards, Benefits, and Security

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  1. Wireless Networking By Alvin Tse

  2. Governing Bodies and Organizations • FCC – Federal Communications Commission • http://www.fcc.gov/ • IETF – Internet Engineering Task Force • http://www.ietf.org/ • IEEE – Institute Of Electrical and Electronics Engineers • http://www.ieee.org/portal/site • Air Defense • http://www.airdefense.net/ • Cisco Systems, Inc. • http://www.cisco.com/ • Wi-Fi Alliance • http://www.wi-fi.org/

  3. Benefits and Drawbacks • Benefits • Mobility • Reduced Costs • Flexible • Distance • Drawbacks • Dead Spots • Interference • Interoperability • Security

  4. Standards • IEEE – 802.11 • 802.11 2.4GHz 2Mbps • 802.11b 2.4GHz 11Mbps • 802.11g 2.4GHz 54Mbps • 802.11a 5.0GHz 54Mbps • 802.11n 5.0 & 2.4 GHz 144Mbps

  5. Architecture • Site To Site / Point to Point • Point to Multipoint / Hub and Spoke • Last Mile • Wireless Internet Service Provider (WISP)

  6. Site to Site / Point to Point

  7. Point to Multipoint / Hub and Spoke

  8. Last Mile / WISP

  9. Devices • Access Points • Root Mode • Bridge Mode • Repeater Mode • Antennas • Omni Directional / Dipole • Semi Directional • Highly Directional

  10. Root Mode

  11. Bridge Mode

  12. Repeater Mode

  13. Omni Directional / Dipole

  14. Omni Directional Outdoor

  15. Omni Directional Indoor

  16. Semi Directional

  17. Semi Directional - Yagi

  18. Semi Directional - Patch

  19. Highly Directional - Dish

  20. Highly Directional - Grid

  21. Security • WEP – Wired Equivalent Privacy • WPA – Wi-Fi Protected Access • Broadcast SSID off • MAC Filtering • Redirecting Packets • Authentication • EAP (Extensible Authentication Protocol) • LEAP (Lightweight Extensible Authentication Protocol) • PEAP (Protected Extensible Authentication Protocol) • RADIUS (Remote Authentication Dial In User Service) • VPN

  22. Authentication RADIUS

  23. Authentication VPN

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