Business Data Networks and Telecommunication

Panko and Panko
Business Data Networks and Telecommunications, 8th Edition

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Chapters 1–4: Introductory material
Chapters 5–6: Switched networks
Chapter 7: 802.11 standards and operation
Chapter 8: 802.11 security, 802.11 management, other local wireless technologies, and cellular technologies

Chapter 8

Chapters 9–10: Internetworking
Panko and Panko
Business Data Networks and Telecommunications, 8th Edition
© 2011 Pearson Education, Inc. Publishing as Prentice Hall

Chapter 11: Applications
© 2011 Pearson Education, Inc. Publishing as Prentice Hall

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802.11 Security
Drive-By Hackers
◦ Sit outside the corporate premises and read network traffic

802.11 LAN management

◦ Can send malicious traffic into the network
◦ Easily done with readily downloadable software

Other local wireless technologies

War Drivers
◦ Merely discover unprotected access points— become drive-by hackers only if they break in

Cellular technology
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◦ War driving per se is not illegal
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© 2011 Pearson Education, Inc. Publishing as Prentice Hall

Unprotected Access Points

Rogue Access Points

◦ Drive by hackers can associate with any unprotected access point.

◦ Unauthorized access points that are set up by a department or an individual

◦ They gain access to the local area network without going through the site firewall.

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◦ Often have very poor security, making drive-by hacking easier
◦ Often operate at high power, attracting many hosts to their low-security service

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© 2011 Pearson Education. Doing business as Prentice-Hall

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Panko and Panko
Business Data Networks and Telecommunications, 8th Edition

Core security protocols protect communication between a wireless client and a legitimate access point.
They provide