Chapter 7 Wireless LAN
P-870H/HW Series User’s Guide
104
The following table describes the labels in this screen.
Table 32
Wireless LAN > Advanced Setup
LABEL
DESCRIPTION
RTS/CTS
Threshold
Enter a value between 0 and 2432.
Fragmentation
Threshold
This is the maximum data fragment size that can be sent. Enter a value
between 256 and 2432.
Number of
Wireless
Stations
Allowed
Specify the maximum number (from 1 to 64) of the wireless stations that
may connect to the ZyXEL Device.
Output Power
Set the output power of the ZyXEL Device. If there is a high density of
APs in an area, decrease the output power to reduce interference with
other APs. Select one of the following 20%, 40%, 60%, 80% or
100%.
Multicast Rate
Select a data rate at which the ZyXEL Device transmits wireless multicast
traffic.
If you select a high rate, multicast traffic may occupy all the bandwidth
and cause network congestion.
802.11 Mode
Select 802.11b/g Mixed to allow either IEEE 802.11b or IEEE 802.11g
compliant WLAN devices to associate with the ZyXEL Device. The ZyXEL
Device adjusts the transmission rate automatically according to the
wireless standard supported by the wireless devices.
Select 802.11g Only to allow IEEE 802.11g compliant WLAN devices to
associate with the ZyXEL Device. IEEE 802.11b compliant WLAN devices
can associate with the ZyXEL Device only when they use the short
preamble type.
Select 802.11b Only to allow either IEEE 802.11b or IEEE 802.11g
compliant WLAN devices to associate with the ZyXEL Device. In this
mode, all wireless devices can only transmit at the data rates supported
by IEEE 802.11b.
802.11
Protection
Enabling this feature can help prevent collisions in mixed-mode networks
(networks with both IEEE 802.11b and IEEE 802.11g traffic).
Select Auto to have the wireless devices transmit data after a RTS/CTS
handshake. This helps improve IEEE 802.11g performance.
Select Off to disable 54g protection. The transmission rate of your ZyXEL
Device might be reduced in a mixed-mode network.
This field displays Off and is not configurable when you set 802.11
Mode to 802.11b Only.
Preamble
Select a preamble type from the drop-down list menu. Choices are Long
or Short. The default setting is Long. See the appendix for more
information.
This field is not configurable and the ZyXEL Device uses Short when you
set 802.11 Mode to 802.11g Only.
Apply
Click this to save your changes back to the ZyXEL Device.
Reset
Click this to reload the previous configuration for this screen.
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