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Chapter 10 Wireless Security Screen
NWA-3500/NWA-3550 User’s Guide
159
10.5 Technical Reference
This section provides technical background information on the topics discussed in
this chapter.
The following is a general guideline in choosing the security mode for your NWA.
• Use WPA(2) security if you have WPA(2)-aware wireless clients and a RADIUS
server. WPA has user authentication and improved data encryption over WEP.
• Use WPA(2)-PSK if you have WPA(2)-aware wireless clients but no RADIUS
server.
• If you don’t have WPA(2)-aware wireless clients, then use WEP key encrypting.
A higher bit key offers better security. You can manually enter 64-bit, 128-bit or
152-bit WEP keys.
More information on Wireless Security can be found in Appendix B on page 233.
Group Key
Update Timer
The Group Key Update Timer is the rate at which the AP sends a
new group key out to all clients. The re-keying process is the WPA
equivalent of automatically changing the group key for an AP and all
stations in a WLAN on a periodic basis. Setting of the Group Key
Update Timer is also supported in WPA-PSK mode. The NWA’s
default is 1800 seconds (30 minutes).
Apply Click Apply to save your changes.
Reset Click Reset to begin configuring this screen afresh.
Table 46 Wireless > Security: WPA-PSK, WPA2-PSK or WPA2-PSK-MIX
LABEL DESCRIPTION