Technical Reference - ZyXEL Communications NWA-3160 User Manual

Table 42 Security: WPA-PSK, WPA2-PSK or WPA2-PSK-MIX
LABEL
Group Key Update
Timer
Apply
Reset

10.3 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
NWA-3160 Series User's Guide
DESCRIPTION
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).
Click Apply to save your changes.
Click Reset to begin configuring this screen afresh.
Chapter 10 Wireless Security Screen
Appendix B on page 285.
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