14.The Preamble (see Figure 22) allows you to adjust the preamble mode for a 2.4GHz/11Mb network to Long, Short, or Auto. The default preamble mode is Long.
Figure 22
15.There are three different security Authentication Methods that may be selected as shown in Figure 23. Open System or Shared Key (the default selection) allows the device to accept connection requests from any wireless device in its operating range, while Shared Key allows only devices with the same 64-bit WEP (Wired Equivalent Privacy) or 128-bit WEP encryption key access to the device, and WPA-PSK(Wi-Fi Protected Access-Pre-Shared Key) allows only devices with the same TKIP (Temporal Key Integrity Protocol) encryption key access to the device.
Figure 23
16.The Encryption field can be None, 64-bit WEP, 128-bit WEP or TKIP, depending on which Authentication Method was chosen. If Shared Key was chosen, 64-bit and 128-bit WEP encryption keys may be manually assigned (by entering digits in the four WEP Key fields) or automatically generated (by entering 8 to 64 letters, numbers or symbols in the Passphrase field). In this case, the four WEP Keys will be generated when you click on the Apply button.
NOTE: You must specify which of the generated WEP Keys you want to be the default WEP Encryption Key in the Default Key field.
17.If WPA-PSKwas chosen as the Authentication Method, you must enter a Passphrase in that field, and set the WPA Re-key Timer value (1-2,147,483,647 seconds). This will determine the time interval before the WPA group key is changed. A shorter time interval will make for a more secure wireless network.
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