802.11 Wireless Networks: The Definitive Guide: The Definitive GuideAs we all know by now, wireless networks offer many advantages over fixed (or wired) networks. Foremost on that list is mobility, since going wireless frees you from the tether of an Ethernet cable at a desk. But that's just the tip of the cable-free iceberg. Wireless networks are also more flexible, faster and easier for you to use, and more affordable to deploy and maintain.The de facto standard for wireless networking is the 802.11 protocol, which includes Wi-Fi (the wireless standard known as 802.11b) and its faster cousin, 802.11g. With easy-to-install 802.11 network hardware available everywhere you turn, the choice seems simple, and many people dive into wireless computing with less thought and planning than they'd give to a wired network. But it's wise to be familiar with both the capabilities and risks associated with the 802.11 protocols. And 802.11 Wireless Networks: The Definitive Guide, 2nd Edition is the perfect place to start.This updated edition covers everything you'll ever need to know about wireless technology. Designed with the system administrator or serious home user in mind, it's a no-nonsense guide for setting up 802.11 on Windows and Linux. Among the wide range of topics covered are discussions on:
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From inside the book
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... element Disassociated because of unacceptable values in Supported Channels element Reserved Invalid information element (added with 802.11i, and likely one ofthe 802.11i information elements) Message integrity check failure 4-way keying ...
... Element ID Figure 4-31. Generic management frame information element Management Frames | 91 Table 4-7. Information elements ElementID Name 0 Service Set Identity. This is the Title of the Book, eMatter Edition Management Frame Information ...
... information element Some documentation refers to the SSID as the network name because network administrators ... information element allows an 802.11 network to specify the data rates it supports. When mobile stations attempt to join the ...
... Data rate label Mandatory flag 7 1 Least significant Most significant bits 1= mandatory 0=optional 0 1 100000 2Mbps,mandatory 0 0 110100 11Mbps,optional Figure 4-33. Supported Rates information element 500 kbps, the maximum data rate ...
... information element, shown in Figure4-34, contains all parameters necessary to join a frequency-hopping 802.11 network. Figure 4-34. FH Parameter Set information element The FH Parameter Set has four fields that uniquely specify an ...
Contents
1 | |
12 | |
32 | |
67 | |
Wired Equivalent Privacy WEP | 114 |
User Authentication with 8021X | 129 |
Robust Security Networks TKIP and CCMP | 149 |
Management Operations | 170 |
80211 Hardware | 343 |
Using 80211 on Windows | 353 |
80211 on the Macintosh | 373 |
Using 80211 on Linux | 387 |
Using 80211 Access Points | 415 |
Logical Wireless Network Architecture | 438 |
Security Architecture | 476 |
Site Planning and Project Management | 518 |
ContentionFree Service with the PCF | 214 |
Physical Layer Overview | 225 |
The FrequencyHopping FH PHY | 241 |
DSSS and HRDSSS 80211b | 253 |
5GHz OFDM PHY | 276 |
The ExtendedRate PHY ERP | 298 |
MIMOOFDM | 311 |
80211 Network Analysis | 553 |
80211 Performance Tuning | 573 |
Conclusions and Predictions | 585 |
Glossary | 597 |
Index | 598 |