Chapter 3
Advanced Configuration
18
Wireless-G Broadband Router with 2 Phone Ports
Advanced Wireless
Authentication Type The default is set to Auto, which
allows either Open System or Shared Key authentication
to be used. With Open System authentication, the sender
and the recipient do NOT use a WEP key for authentication.
With Shared Key authentication, the sender and recipient
use a WEP key for authentication. Select Shared Key to
only use Shared Key authentication.
Transmission Rate The rate of data transmission should
be set depending on the speed of your wireless network(s).
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 Protection Mode The Router will automatically
use CTS (Clear-To-Send) Protection Mode when your
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-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(s). The default value 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 value is 1.
RTS Threshold Should you encounter inconsistent data
flow, only minor reduction of the default value, 2347, 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
2347.
Click Save Settings 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 Firewall Protection To use firewall protection, keep
the default, Enabled. To turn off firewall protection, select
Disabled.
Internet Filter
Filter Anonymous Internet Requests This feature
makes 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
.
Filter Internet NAT Redirection This feature uses port
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.
Filter IDENT (Port 113) This feature keeps port 113 from
being scanned by devices outside of your local network.
This feature is selected by default. Deselect this feature to
disable it.
Web Filter
Proxy Use of WAN proxy servers may compromise the
Router’s security. Denying Proxy will disable access to any
WAN proxy servers. Select this feature to enable proxy
filtering. Deselect the feature to allow proxy access
.
Java Java is a programming language for websites. If you
deny Java, you run the risk of not having access to Internet
sites created using this programming language. Select
this feature to enable Java filtering. Deselect the feature
to allow Java usage
.
