AmbiCom WL1100B-AR - Manual (Page 24)

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WEP
To prevent unauthorized wireless stations from accessing data transmitted over the network,
the WL1100B-AR Wireless LAN Access Router offers WEP (Wired Equivalency Privacy).
You can set up 4 encryption keys but choose one key to encrypt your data.
Access Control
The Access Control Table enables you to restrict wireless stations accessing the
WL1100B-AR Wireless LAN Access Routers by identifying the MAC address of the wireless
devices.