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| Wireless Settings
C
8
HAPTER
Virtual Access Points (VAPs)
Figure 49: Configuring VAPs - Common Settings
The following items are common to all three modes:
Association Mode — Defines the mode with which the access point
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will associate with other clients.
Open System: The VAP is configured by default as an "open
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system," which broadcasts a beacon signal including the configured
SSID. Wireless clients with an SSID setting of "any" can read the
SSID from the beacon and automatically set their SSID to allow
immediate connection.
WPA: WPA employs a combination of several technologies to
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provide an enhanced security solution for 802.11 wireless networks.
WPA-PSK: For enterprise deployment, WPA requires a RADIUS
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authentication server to be configured on the wired network.
However, for small office networks that may not have the resources
to configure and maintain a RADIUS server, WPA provides a simple
operating mode that uses just a pre-shared password for network
access. The Pre-Shared Key mode uses a common password for
user authentication that is manually entered on the access point
and all wireless clients. The PSK mode uses the same TKIP packet
encryption and key management as WPA in the enterprise,
providing a robust and manageable alternative for small networks.
WPA2: WPA2 – WPA was introduced as an interim solution for the
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vulnerability of WEP pending the ratification of the IEEE 802.11i
wireless security standard. In effect, the WPA security features are
a subset of the 802.11i standard. WPA2 includes the now ratified
802.11i standard, but also offers backward compatibility with WPA.
Therefore, WPA2 includes the same 802.1X and PSK modes of
operation and support for TKIP encryption.
WPA2-PSK: Clients using WPA2 with a Pre-shared Key are
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accepted for authentication.
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