Security - Draytek Vigor2920n User Manual

Long Preamble
3 . 6 . 3 S e c u r i t y
3 . 6 . 3 S e c u r i t y
By clicking the Security Settings, a new web page will appear so that you could configure the
settings of WEP and WPA.
Mode
Vigor2920 Series User's Guide
This option is to define the length of the sync field in an 802.11
packet. Most modern wireless network uses short preamble with
56 bit sync field instead of long preamble with 128 bit sync
field. However, some original 11b wireless network devices
only support long preamble. Check it to use Long Preamble if
needed to communicate with this kind of devices.
There are several modes provided for you to choose.
Disable - Turn off the encryption mechanism.
WEP-Accepts only WEP clients and the encryption key should
be entered in WEP Key.
WPA/PSK-Accepts only WPA clients and the encryption key
should be entered in PSK.
WPA2/PSK-Accepts only WPA2 clients and the encryption
key should be entered in PSK.
Mixed (WPA+ WPA2)/PSK - Accepts WPA and WPA2
clients simultaneously and the encryption key should be entered
in PSK.
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