Levelone WPC-0601 Bedienungsanleitung PDF herunterladen (Seite 27)

N_Max Wireless CardBus Adapter

Channels

The Wireless Channel sets the radio frequency used for communication.

 Access Points use a fixed Channel. You can select the Channel used. This allows

you to choose a Channel which provides the least interference and best perfor-

mance. In the USA and Canada, 11 channels are available. If using multiple

Access Points, it is better if adjacent Access Points use different Channels to re-

duce interference.

 In "Infrastructure" mode, Wireless Stations normally scan all Channels, looking for

an Access Point. If more than one Access Point can be used, the one with the

strongest signal is used. (This can only happen within an ESS.)

 If using "Ad-hoc" mode (no Access Point), all Wireless stations should be set to

use the same Channel. However, most Wireless stations will still scan all Channels

to see if there is an existing "Ad-hoc" group they can join.

WEP & WPA-PSK

Both WEP and WPA-PSK are standards for encrypting data before it is transmitted.

This is desirable because it is impossible to prevent snoopers from receiving any data

which is transmitted by your Wireless Stations. But if the data is encrypted, then it is

meaningless unless the receiver can decrypt it.

WPA-PSK is a later standard than WEP, and is more secure.

Wireless LAN Configuration

To allow Wireless Stations to use the Access Point, the Wireless Stations and the

Access Point must use the same settings, as follows:

Mode

On client Wireless Stations, the mode must be set to "Infrastructure"

(The Access Point is always in "Infrastructure" mode.)

SSID (ESSID)

Wireless Stations should use the same SSID (ESSID) as the Access

Point they wish to connect to. Alternatively, the SSID can be set to

"any" or null (blank) to allow connection to any Access Point.

Security

The Wireless Stations and the Access Point must use the same

settings for Wireless security (Disabled, WEP, WPA-PSK)

WEP - If WEP is used, the WEP Key must be the same on the Wire-

less Stations and the Access Point. WEP Authentication ("Open

System" or "Shared Key") must also be the same, unless the Access

Point supports both methods simultaneously.

WPA-PSK - If using WPA-PSK, the PSK (Pre-shared Key) must be

entered on each Wireless station. The encryption key is derived from

the PSK, and changes frequently.

WPA2-PSK - This is a later version of WPA (WPA-PSK). The major

change is the use of AES (Advanced Encryption System) for protect-

ing data. AES is very secure, considered to be unbreakable. The

PSK (Pre-shared Key) must be entered on each Wireless station.

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