Linksys WRT54G User Manual page 29

Transmission Rate The default setting 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. You can select from a range of transmission speeds, or
keep the default setting, 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.
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 Router to synchronize the wire-
less network.
RTS Threshold This value should remain at its default setting of 2347. The
range is 0-2347 bytes. Should 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 Router
sends Request to Send (RTS) frames to a particular receiving station and nego-
tiates 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.
Fragmentation Threshold This value should remain at its default setting of
2346. The range is 256-2346 bytes. It specifies the maximum size for a packet
before data is fragmented into multiple packets. If you experience a high pack-
et 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.
DTIM Interval The default value is 3. This value, between 1 and 255 mil-
liseconds, indicates the interval of the Delivery Traffic Indication Message
(DTIM). A DTIM field is a countdown field informing clients of the next win-
dow for listening to broadcast and multicast messages. When the Router 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 awak-
en to receive the broadcast and multicast messages.
Wireless MAC Filters The Wireless MAC Filters feature allows you to con-
trol which wireless-equipped PCs may or may not communicate with the
Router-depending on their MAC addresses. To disable the Wireless MAC
Filters feature, keep the default setting, Disable. To set up a filter, click Enable,
and follow these instructions:
50
Instant Wireless Series
®
Wireless-G Broadband Router
1. If you want to block specific wireless-equipped PCs from communicating
with the Router, then keep the default setting, Prevent PCs listed from
accessing the wireless network. If you want to allow specific wireless-
equipped PCs to communicate with the Router, then click the radio button
next to Permit only PCs listed to access the wireless network.
2. Click the Edit MAC Filter List button. Enter the appropriate MAC
addresses into the MAC fields (see Figure 6-18).
Note: For each MAC field, the MAC address should be entered in this
format: xxxxxxxxxxxx (the x's represent the actual characters of the
MAC address).
3. Click the Apply but-
ton to save your
changes. Click the
Cancel button to
cancel your unsaved
changes. Click the
Close button to
return to the
Advanced Wireless
screen without sav-
ing changes.
4. On the MAC Address
Filter List screen,
click the Wireless
Client MAC List
button to view a list
of the wireless-
equipped PCs (see
Figure 6-19).
Figure 6-18
51