Cisco WIRELESS-G WRT54GP2 - Manual (Page 39)

Wireless-G Broadband Router with 2 Phone Ports
31 Chapter 5: Configuring the Router
The Wireless Tab - Advanced Wireless Settings
The Wireless Tab - Advanced Wireless Settings
This tab is used to set up the Router’s advanced wireless functions. These settings should only be adjusted by
an expert administrator as incorrect settings can reduce wireless performance.
Basic Rate. The Basic Rate setting is not actually one rate of transmission but a series of rates at which the
Router can transmit. The Router will advertise its Basic Rate to the other wireless devices in your network, so
they know which rates will be used. The Router will also advertise that it will automatically select the best rate
for transmission. The default setting is Default, when the Router can transmit at all standard wireless rates
(1-2Mbps, 5.5Mbps, 11Mbps, 18Mbps, and 24Mbps). Other options are 1-2Mbps, for use with older wireless
technology, and All, when the Router can transmit at all wireless rates. The Basic Rate is not the actual rate of
data transmission. If you want to specify the Router’s rate of data transmission, configure the Transmission Rate
setting.
Control Tx Rate. The rate of data transmission should be set depending on the speed of your wireless network.
You can select from a range of transmission speeds, or you can select Auto to have the Router automatically use
the fastest possible data rate and enable the Auto-Fallback feature. Auto-Fallback will negotiate the best
possible connection speed between the Router and a wireless client. The default value is Auto.
Preamble Type. The preamble defines the length of the CRC block for communication between the Router and
the roaming Network Card. (High network traffic areas should use the shorter preamble type.) Select the
appropriate preamble type, Long Preamble (default) or Short Preamble.
Authentication Type. The default is set to Auto, which allows either Open System or Shared Key authentication
to be used. With Open System authentication, the sender and the recipient do NOT use a WEP key for
authentication. With Shared Key authentication, the sender and recipient use a WEP key for authentication.
CTS Protection Mode. CTS (Clear-To-Send) Protection Mode should remain disabled unless you are having
severe problems with your Wireless-G products. If these products are not able to transmit to the Router in an
Figure 5-20: Advanced Wireless Settings
cts (clear to send): a signal sent
by a wireless device, signifying
that it is ready to receive data.