Linksys 2.4 GHz 802.11g Wireless-G ADSL Gateway with 2 Ports WAG54GP2 - Manual (Page 41)

32 Chapter 4: Configuring the Gateway
The Wireless Tab
Wireless-G ADSL Gateway with 2 Phone Ports
Advanced Wireless Settings Tab
Advanced Wireless
On this screen you can access the Advanced Wireless features, including Authentication Type, Basic Data Rates,
Control Tx Rates, Beacon Interval, DTIM Interval, RTS Threshold, and Fragmentation Threshold.
Authentication Type. The default is set to Auto, which allows either Open System or Shared Key authentication
to be used. For Open System authentication, the sender and the recipient won’t use a WEP key for authentication
but can use WEP for data encryption. If you want to allow Open System authentication, select Open System. For
Shared Key authentication, the sender and recipient use a WEP key for both authentication and data encryption.
If you want to use only Shared Key authentication, select Shared Key. This option should be left in the default
(Auto) mode, as some clients cannot be configured for Shared Key.
Control Tx Rates. The default transmission rate is Auto. The range is from 1 to 54Mbps. The rate of data
transmission should be set depending on the speed of your wireless network. Select from the range of speeds, or
have the Gateway automatically use the fastest possible data rate, be default, and enable the Auto-Fallback
feature.
Beacon Interval. The default value is 100. Enter a value between 1 and 65,535 milliseconds. The Beacon Interval
value indicates the frequency interval of the beacon. A beacon is a packet broadcast by the Gateway to
synchronize the wireless network.
DTIM Interval. The default value is 3. This value, between 1 and 255, indicates the interval of the Delivery Traffic
Indication Message (DTIM). A DTIM field is a countdown field informing clients of the next window for listening to
broadcast and multicast messages. When the Gateway has buffered broadcast or multicast messages for
associated clients, it sends the next DTIM with a DTIM Interval value. Its clients hear the beacons and awaken to
receive the broadcast and multicast messages.
Fragmentation Threshold. This value should remain at its default setting of 2346. The range is 256-2346 bytes.
It specifies the maximum size of a packet before data is fragmented into multiple packets. If you experience a
high packet error rate, you may slightly increase the Fragmentation Threshold. Setting the Fragmentation
Threshold too low may result in poor network performance. Only minor modifications of this value are
recommended.
RTS Threshold. This value should remain at its default setting of 2347. The range is 0-2347 bytes. If you
encounter inconsistent data flow, only make minor modifications. If a network packet is smaller than the preset
RTS threshold size, the RTS/CTS mechanism will not be enabled. The Gateway sends Request to Send (RTS)
frames to a particular receiving station and negotiates the sending of a data frame. After receiving an RTS, the
wireless station responds with a Clear to Send (CTS) frame to acknowledge the right to begin transmission.
Figure 4-22: Wireless Tab - Advanced Wireless Settings