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In the above security modes, a back-end RADIUS (Remote Authentication Dial-In User Service)
server is needed if IEEE 802.1x functionality is enabled. See Section 3.5.3 for more information about
IEEE 802.1x and RADIUS.
According to the IEEE 802.11 standard, WEP can be used for authentication and data encryption.
Normally, Shared Key authentication is used if WEP data encryption is enabled. In rare cases, Open
System authentication may be used when WEP data encryption is enabled. The Authentication algo-
rithm setting is provided for better compatibility with wireless clients with various WLAN network
adapters. There are three options available, including Open System, Shared Key, and Auto.
When WEP is enabled by a security mode, the Key length can be specified to be 64 Bits or 128 Bits.
The Selected key setting specifies the key to be used as a send-key for encrypting traffic from the AP
side to the wireless client side. All 4 WEP keys are used as receive-keys to decrypt traffic from the
wireless client side to the AP side.
NOTE: Each field of a WEP key setting is a hex-decimal number from 00 to FF. For example, when
the security mode is Static WEP and the key length is 64 Bits, you could set Key 1 to
“00012E3ADF”.
3.5.2.2. MAC-Address-Based Access Control
Fig. 49. MAC-address-based access control settings.
With MAC-Address-Based Access Control, you can specify the wireless client computers that are
permitted or not permitted to associate with the AP. When the table type is set to inclusive, entries in
the table are permitted to associate with the AP. When the table type is set to exclusive, entries in the
table are not permitted to associate with the AP.
To deny wireless clients’ access to the wireless network:
1. Select Enabled from the Functionality drop-down list.
2. Set the Access control type to exclusive.
3. Specify the MAC address of a wireless client to be denied access, and then click Add.
4. Repeat Steps 3 for other wireless clients.
To grant wireless clients’ access to the wireless network:
1. Select Enabled from the Functionality drop-down list.
2. Set the Access control type to inclusive.