Linksys Instant Wireless Series User Manual page 15

• Fragmentation Threshold. This specifies the maximum size a data pack-
et will be before splitting and creating a new packet and should remain at
its default setting of 2,346. A smaller setting means smaller packets, which
will create more packets for each transmission. If you have decreased this
value and experience high packet error rates, you can increase it again, but
it will likely decrease overall network performance. Only minor modifica-
tions of this value are recommended.
• DTIM Interval. 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 mes-
sages. When the Access Point has buffered broadcast or multicast messages
for associated clients, it sends the next DTIM with a DTIM Interval value.
Access Point Clients hear the beacons and awaken to receive the broadcast
and multicast messages.
• Transmission Rates. The basic transfer rates should be set depending on
the speed of your wireless network. You must select 1-2 (MBps) if you have
older 802.11 compliant equipment on your network, such as wireless
adapters that support only 1 or 2 Mbps. Selecting 1-2 (MBps), however,
does not limit the basic transfer rates of faster adapters.
• Preamble Type. The preamble defines the length of the CRC block for
communication between the Access Point and a roaming Network Card.
(High network traffic areas should use the shorter preamble type.) Select
the appropriate preamble type and click the Apply button to set it.
• Authentication Type. You may choose between Open System, Shared
Key, and Both. The Authentication Type default is set to Open System, in
which the sender and the recipient do NOT share a secret key. Each party
generates its own key-pair and asks the receiver to accept the randomly-
generated key. Once accepted, this key is used for a short time only. Then
a new key is generated and agreed upon. Shared Key is when both the
sender and the recipient share a secret key.
• Antenna Selection. This selection is for chosing which antenna transmits
data. By default, the Diversity Antenna selection, used to increase recep-
tion, is chosen.
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Instant Wireless Series
TM
Wireless Network Access Point
• SSID Broadcast. For security purposes, this selection can be disabled,
allowing only those wireless network cards with the Access Point's SSID to
communicate with the Access Point. By default, this selection is enabled,
allowing all wireless network cards in your wireless network to communi-
cate with the Access Point.
Important: The Access Point will not be recognized by "site-sur-
vey" utilities, such as the Microsoft
Configuration Utility, if SSID Broadcast is disabled.
When you've completed making any changes on this tab, click the Apply but-
ton to save those changes or Cancel to exit the Web-based Utility without sav-
ing changes. For more information on this tab, you can click the Help button.
® Windows ® XP and 2000
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