Security > Firewall; Internet Filter - Linksys WRT54G3GV2-ST - Wireless-G Router For Mobile Broadband Wireless User Manual

Chapter3
use a WEP key for authentication. Select Shared Key to
only use Shared Key authentication.
Basc 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 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.
Transmsson 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 is Auto.
CTS Protecton Mode The Router will automatically
use CTS (Clear-To-Send) Protection Mode when your
Wireless-N and Wireless-G products are experiencing
severe problems and are not able to transmit to the
Router in an environment with heavy 802.11b traffic. This
function boosts the Router's ability to catch all Wireless-
N and Wireless-G transmissions but will severely decrease
performance. The default is Auto.
Beacon Interval 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 wireless
network. The default is 100.
DTIM Interval 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 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 awaken to receive the broadcast
and multicast messages. The default is 1.
Fragmentaton Threshold
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
reduction of the default value is recommended. In most
cases, it should remain at its default of 23.
Wreless-G Router for Moble Broadband
This value specifies the
Advanced Configuration
RTS Threshold Should you encounter inconsistent data
flow, only minor reduction of the default value, 23, is
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 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. The RTS
Threshold value should remain at its default value of
23.
Click Save Settngs to apply your changes, or click Cancel
Changes to cancel your changes.
Security > Firewall
The Firewall screen is used to configure a firewall that can
filter out various types of unwanted traffic on the Router's
local network.
Security > Firewall
Firewall
SPI Frewall Protecton To use firewall protection, keep
the default, Enabled. To turn off firewall protection, select
Dsabled.

Internet Filter

Flter Anonymous Internet Requests
it more difficult for outside users to work their way into
your network. This feature is selected by default. Deselect
the feature to allow anonymous Internet requests.
Flter Multcast Multicasting
transmissions to specific recipients at the same time. If
multicasting is permitted, then the Router will allow IP
multicast packets to be forwarded to the appropriate
computers. Select this feature to filter multicasting. This
feature is not selected by default.
Flter Internet NAT Redrecton
forwarding to block access to local servers from local
networked computers. Select this feature to filter Internet
NAT redirection. It is not selected by default.
This feature makes
allows for multiple
This feature uses port
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