Home Wireless-G Gateway
The Advanced Wireless Settings Tab
Advanced Wireless
On this screen you can access the advanced wireless features, including Authentication Type, Control TX Rate, Beacon Interval, DTIM Interval, Fragmentation Threshold, and RTS 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 do not use a WEP key for authentication but can use WEP for data encryption. To only 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. To only allow Shared Key authentication, select Shared Key. It is recommended that this option be left in the default (Auto) mode, because some clients cannot be configured for Shared Key.
•Control Tx Rates The default transmission rate is Auto. The rate should be set depending on the speed of your wireless network. Select from a range of transmission speeds, or keep the default setting, Auto, to have the Gateway automatically use the fastest possible data rate and enable the
•Beacon Interval. The default value is 100. 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 1. This value 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. It specifies the maximum size for 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. If you encounter inconsistent data flow, only minor modifications are recommended. 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.
When finished making your changes on this tab, click the Save Settings button to save these changes, or click the Cancel Changes button to undo your changes.
Chapter 5: Configuring the Home Wireless-G Gateway
Figure 5-20: Advanced Wireless Settings
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The Wireless Tab
