Installing, Troubleshooting, and Repairing Wireless Networks phần 2 ppsx

... installed because of physical constraints. TABLE 2. 1 Cost Comparison Between Wired and Wireless Networks for 50 Systems Chapter 2 30 Equipment Wired Wired Wireless Wireless and Labor Network Cost Totals Network ... $100 $5,000 Jacks and Cable $50 $2, 500 0 0 Installation (50) Patch Panels (3) $400 $1 ,20 0 0 0 Patch Cables (100) $5 $500 0 0 Hub/Switch (2 3) $400 $1 ,20 0 0 0 A...

Ngày tải lên: 10/08/2014, 12:21

... Networking Standards 27 4 8 02. 11g—Higher Speed at 2. 4 GHz 27 5 8 02. 11i—Enhanced Security 27 6 8 02. 1x—A Security Standard for All Networks 27 8 Summary 27 8 Chapter 16 Installing Antennas 28 1 Be Safe! 28 2 Boy ... government Wireless Essentials 7 Installing, Troubleshooting, and Repairing Wireless Networks Chapter 14 Neighborhood and Community Wireless Netw...

Ngày tải lên: 10/08/2014, 12:21

... W ϭ 36 dBm 500 mW = 27 dBm (15 dB gain) 9 dBi 4 W ϭ 36 dBm 25 0 mW = 24 dBm ( 12 dB gain) 12 dBi 4 W ϭ 36 dBm 100 mW = 20 dBm (8 dB gain) 16 dBi 4 W ϭ 36 dBm 30 mW = 12 dBm 24 dBi 4 W ϭ 36 dBm loss ... foot apartment or 1 ,20 0 2, 500 square foot home is an ideal place to install a wireless access point and out- fit each desktop and laptop system with a wireless adapter card...

Ngày tải lên: 10/08/2014, 12:21

... addresses 24 .66.13.5 and 24 .66. 12. 6. ■ DSL provider assigns you eight fixed IP addresses from 24 .66.13 .21 to 24 .66.13 .28 . With this information in hand, you can begin to configure your wireless ... to 24 .66.13.5 and 24 .66. 12. 6. ■ Configure the LAN router LAN address to 1 92. 168.10.1 (quite dif- ferent from the WLAN equipment and users). ■ Configure the LAN router s...

Ngày tải lên: 10/08/2014, 12:21

... access. ■ 8 02. 11g—Provides 20 + Mbps in the 2. 4 GHz band. ■ 8 02. 11h—A future standard for wireless spectrum management. ■ 8 02. 11i—A standard for enhancing the security of wireless local area networks ... or DSSS. ■ 8 02. 11b—(Also known as Wi-Fi or wireless fidelity.) A subset of 8 02. 11 that provides 11 Mbps data rates with the ability to scale back to 5.5, 2, or 1 Mbps ra...

Ngày tải lên: 10/08/2014, 12:21

... available WEP keys 0, 1, 2, and 3, while most wireless devices number them 1, 2, 3, and 4 (equivalent to Windows’ 0, 1, 2, and 3, respectively). LinkSys wireless devices and Windows support entering ... location and coverage areas. Enhancing and expanding wireless signal coverage is the next topic. Hardware Installation and Setup 131 If you have not previously connected...

Ngày tải lên: 10/08/2014, 12:21

... documentation and links to several wireless resources. New York City Wireless: http://www.nycwireless.net San Francisco Wireless: http://www.sfwireless.net Seattle Wireless: http://www.seattlewireless.net FreeNetworks.org: ... aspects of wireless networks, products, and implementations—heavy on the Linux side, but many list members do speak Mac and Windows too. Software for Wir...

Ngày tải lên: 10/08/2014, 12:21

... Use 20 0 -20 7h Game Port 20 8 -20 Bh Not Assigned 20 C -20 Dh Reserved 20 E -21 Eh Not Assigned 21 Fh Reserved 22 0 -22 xh Not Assigned 23 0 -23 xh Not Assigned 24 0 -24 7h Not Assigned 25 0 -27 7h Not Assigned 27 8 -27 Fh ... Reserved 22 0-2FFh Not Assigned 23 0 -23 Fh Not Assigned 24 0 -24 7h Not Assigned 25 0 -27 7h Not Assigned 27 8 -27 Fh LPT 2 or LPT 3 —3rd Parallel I/...

Ngày tải lên: 10/08/2014, 12:21

... if we can and will stay with- in the laws that govern what we do now. Going Beyond Current Wireless Networking Standards IEEE 8 02. 11b and then 8 02. 11a differed in both RF spectrum and modulation ... (WEP) encryption and support for other security or privacy methods. Pend- ing IEEE standard 8 02. 11g brings some of 11a’s technology to 2. 4 GHz devices for higher throughput. Pend...

Ngày tải lên: 10/08/2014, 12:21

... Ethernet (PPPoE) in, 22 2, 24 9 router installation for, 22 8 23 7, 22 9 23 6 serverless, 22 2, 22 3 servers installed in, 22 2, 22 3 sharing of (See also neighborhood and community networks) , 25 4 25 7, 25 5 time synchronization ... (SOHO) network, 22 1 25 2 access point installation for, 23 7 24 2, 23 9 24 2 components and software for, 22 2 coverage area of, 22 2 digit...

Ngày tải lên: 10/08/2014, 12:21