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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... request. Associations are also exclusive on the part of the mobile station: a mobile station can be associated with only one access point.* The 802.11 standard places no limit on the number of mobile stations that an access point may ...
... Request to Send (RTS) and Clear to Send (CTS) signals to clear out an area. Both the RTS and CTS frames extend the frame transaction, so that the RTS frame, CTS frame, the ChallengesfortheMAC | 35 data frame, and the final ...
... request 0001 Association response 0010 Reassociation request 0011 Reassociation response 0100 Probe request 0101 Probe response FrameFormat | 47 Table 3-1. Type and subtype identifiers (continued) Subtype value Subtype. This is the Title ...
... Request (QoS) 1001 Block Acknowledgment (QoS) 1010 Power Save (PS)-Poll 1011 RTS 1100 CTS 1101 Acknowledgment (ACK) 1110 Contention-Free (CF)-End 1111 CF-End+CF-Ack Data frames (type=10) 0000 Data 0001 Data+CF-Ack 0010 Data+CF-Poll 0011 ...
... request, waking stations incorporate the association ID (AID) that indicates which BSS they belong to. The AID is included in the PS-Poll frame and may range from 1–2,007. Values from 2,008–16,383 are reserved and not used. Address.
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 |