NETGEAR STM150EW-100NAS, UTM5EW-100NAS manual Advanced Wireless screen settings, 599

ProSecure Unified Threat Management (UTM) Appliance

3.Specify the settings as explained in the following table:

Table 153. Advanced Wireless screen settings

Setting	Description
Beacon Interval	Enter an interval between 20 ms and 100 ms for each beacon transmission,
	which allows the wireless network module to synchronize the wireless network.
	The default setting is 100 ms.
DTIM Interval	Enter the Delivery Traffic Indication Message (DTIM) interval, also referred to
	as the data beacon rate, which indicates the period for the beacon DTIM in
	multiples of beacon intervals. This value needs to be between 1 and 255. The
	default setting is 2.
RTS Threshold	Enter the Request to Send (RTS) threshold. The default setting is 2346 bytes.
	If the packet size is equal to or less than the RTS threshold, the wireless
	network module uses the Carrier Sense Multiple Access with Collision
	Detection (CSMA/CD) mechanism, and the data frame is transmitted
	immediately after the silence period.
	If the packet size is larger than the RTS threshold, the wireless network module
	uses the CSMA with Collision Avoidance (CSMA/CA) mechanism. In this
	situation, the transmitting station sends an RTS packet to the receiving station
	and waits for the receiving station to return a Clear to Send (CTS) packet before
	sending the actual packet data. This method improves the performance but
	reduces the throughput.
Fragmentation Threshold	Enter the maximum packet size that is used for the fragmentation of data
	packets. Packets that are larger than the specified fragmentation length are
	broken up into smaller packets before being transmitted. The fragmentation
	threshold needs to be an even number. The default setting is 2346 bytes.
Preamble Mode	Specify the transmit preamble mode by making a selection from the drop-down
	list:
	• Long Preamble. A long transmit preamble might provide a more reliable
	connection or a slightly longer range. This is the default mode.
	• Short Preamble. A short transmit preamble gives better performance.
	• Auto Preamble. An automatic preamble gives a better overall performance
	by providing both long and short preambles.
Protection Mode	Specify the CTS-to-self protection mode (CTS stands for Clear to Send) by
	making a selection from the drop-down list:
	• None. CTS-to-self protection mode is disabled. This is the default mode.
	• CTS-To-Self-Protection. CTS-to-self protection mode is enabled. This
	mode increases the performance but reduces the throughput slightly.
Power Save Enable	To enable the Wi-Fi Multimedia (WMM) Power Save feature, select the Power
	Save Enable check box. This feature saves power for battery-powered
	equipment by increasing the efficiency and flexibility of data transmission. Clear
	the check box to disable the feature, which is the default setting.

4.Click Apply to save your settings.

Wireless Network Module for the UTM9S and UTM25S

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