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T-Mobile TM-G5240 Wireless Router User Manual
Version 0.7 041807
56
•
Preamble Type - Select Short or Long Preamble. The Preamble defines the
length of the CRC block (Cyclic Redundancy Check is a common technique for
detecting data transmission errors) for communication between the wireless router
and the roaming wireless network adapters. Auto is the default setting. Note: High
network traffic areas should use the shorter preamble type.
•
Transmit Power (Mbps) -
TM-G5240 has the option to adjust its wireless transmit
power. Limiting transmit power can help in situations where you do not want the
same signals overlapping one another.
• SSID Broadcast - Enabled is the default setting. Choose Enabled to broadcast
the SSID across the network. All devices on the network must share the same
SSID (Service Set Identifier) to establish communication. Choose Disabled if you
do not wish to broadcast the SSID over the network.
• 802.11g Only Mode - For increased speed in your network, enable this option.
802.11b devices will be excluded.
• SPI Mode - Stateful Packet Inspection (also known as dynamic packet filtering)
helps to prevent cyber attacks by tracking more state per session. It validates that
the traffic passing through the session conforms to the protocol.
•
WAN speed to 10/100 Mbps - This option allows the user to select 10Mbps,
100Mbps, or 10Mbps/100Mbps Auto for the Internet port. You may need to change
the Internet port speed if you are experiencing connection problems with your
Cable, or DSL modem.
• CTS - Clear To Send is a function used to minimize collisions among wireless
devices on a wireless local area network (LAN). CTS will make sure the wireless
network is clear before a wireless client attempts to send wireless data. Enabling
CTS will add overhead and may lower wireless throughput.
Auto -
CTS will monitor the wireless network and automatically decide whether to
implement CTS based on the amount of traffic and collisions that occurs on the
wireless network.
Always - CTS will always be used to make sure the wireless LAN is clear before
sending data.
None - CTS is typically used in a pure 802.11g environment. If CTS is set to None
in a mixed mode environment populated by 802.11b clients, wireless collisions
may occur frequently.