43
3.5.2 Security IEEE 802.11g security settings include SSID broadcasts, Wireless client isolation,
Security mode, IEEE 802.11 Authentication algorithm, WEP keys,
MAC-Address-Based Access Control.
3.5.2.1 Basic
Fig. 46. Basic IEEE 802.11g security settings.
For security reasons, it’s highly recommended that the security mode be set to options
other than Open System. When the security mode is set to Open System, no Authenti-
cation and data encryption will be performed. Additionally, you can disable the SSID
broadcasts functionality so that a wireless client computer with an “any” SSID cannot
associate with the AP.
When the Wireless client isolation setting is set to This AP Only, wireless clients of
this AP cannot see each other, and wireless-to-wireless traffic is blocked. When the set-
ting is set to All Aps in This Subnet, traffic among wireless users of different APs in
the same IP subnet is blocked. This feature is useful for WLANs deployed in public
places. In this way, hackers have no chance to attack other wireless users in a hotspot.
When the Wireless client isolation setting is set to This AP Only, wireless clients
(STAs) of this AP cannot see each other, and wireless-to-wireless traffic between the
STAs is blocked. When the setting is set to All APs in This Subnet, traffic among
wireless users of different Aps in the same IP subnet is blocked. The behaviors are il-
lustrated in the following figures.