Netgear WPN824 User Manual download pdf (Page 148)

Reference Manual for the RangeMax Wireless Router WPN824

D-8 Wireless Networking Basics

202-10072-01, March 2005

Note: The available channels supported by the wireless products in various countries are different.

For example, Channels 1 to 11 are supported in the U.S. and Canada, and Channels 1 to 13 are

supported in Europe and Australia.

The preferred channel separation between the channels in neighboring wireless networks is 25

MHz (5 channels). This means that you can apply up to three different channels within your

wireless network. There are only 11 usable wireless channels in the United States. It is

recommended that you start using channel 1 and grow to use channel 6, and 11 when necessary, as

these three channels do not overlap.

WPA and WPA2 Wireless Security

Wi-Fi Protected Access (WPA and WPA2) is a specification of standards-based, interoperable

security enhancements that increase the level of data protection and access control for existing and

future wireless LAN systems.

The IEEE introduced the WEP as an optional security measure to secure 802.11b (Wi-Fi) WLANs,

but inherent weaknesses in the standard soon became obvious. In response to this situation, the

Wi-Fi Alliance announced a new security architecture in October 2002 that remedies the

shortcomings of WEP. This standard, formerly known as Safe Secure Network (SSN), is designed

to work with existing 802.11 products and offers forward compatibility with 802.11i, the new

wireless security architecture that has been defined by the IEEE.

4 2427 MHz 2414.5 MHz - 2439.5 MHz

5 2432 MHz 2419.5 MHz - 2444.5 MHz

6 2437 MHz 2424.5 MHz - 2449.5 MHz

7 2442 MHz 2429.5 MHz - 2454.5 MHz

8 2447 MHz 2434.5 MHz - 2459.5 MHz

9 2452 MHz 2439.5 MHz - 2464.5 MHz

10 2457 MHz 2444.5 MHz - 2469.5 MHz

11 2462 MHz 2449.5 MHz - 2474.5 MHz

12 2467 MHz 2454.5 MHz - 2479.5 MHz

13 2472 MHz 2459.5 MHz - 2484.5 MHz

Table D-4: 802.11b/g Radio Frequency Channels

Channel Center Frequency Frequency Spread

1 2 ... 143 144 145 146 147 148 149 150 151 152 153 ... 173 174

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Netgear WPN824 User Manual Page 148