Draytek Vigor 2925 Series User Manual page 346

Hide SSID
SSID
Isolate
Channel
Long Preamble
Packet-OVERDRIVE
Vigor2925 Series User's Guide
Check it to prevent from wireless sniffing and make it
harder for unauthorized clients or STAs to join your
wireless LAN. Depending on the wireless utility, the user
may only see the information except SSID or just cannot
see any thing about Vigor wireless router while site
surveying. The system allows you to set four sets of SSID
for different usage. In default, the first set of SSID will be
enabled. You can hide it for your necessity.
Means the identification of the wireless LAN. SSID can be
any text numbers or various special characters.
VPN – Check this box to make the wireless clients
(stations) with different VPN not accessing for each other.
Member –Check this box to make the wireless clients
(stations) with the same SSID not accessing for each other.
Means the channel of frequency of the wireless LAN. The
default channel is 6. You may switch channel if the selected
channel is under serious interference. If you have no idea of
choosing the frequency, please select Auto to let system
determine for you.
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.
This feature can enhance the performance in data
transmission about 40%* more (by checking Tx Burst). It
is active only when both sides of Access Point and Station
(in wireless client) invoke this function at the same time.
That is, the wireless client must support this feature and
invoke the function, too.
Note: Vigor N61 wireless adapter supports this function.
Therefore, you can use and install it into your PC for
matching with Packet-OVERDRIVE (refer to the following
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