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Chapter 5: Configuring the Wireless-G Home Router
The Wireless Tab - Wireless Security
Wireless-G Home Router
RADIUS
. This option features WEP used in coordination with a RADIUS server. (This should only be used when a
RADIUS server is connected to the Router.) First, enter the RADIUS server’s IP Address and port number, along
with a key shared between the Router and the server. Then, select a Default Transmit Key (choose which Key to
use), and a level of WEP encryption,
64 bits 10 hex digits
or
128 bits 26 hex digits
. Last, either generate a
WEP key using the Passphrase or enter the WEP key manually.
WEP
. WEP is a basic encryption method, which is not as secure as WPA. To use WEP, select a Default Transmit Key
(choose which Key to use), and a level of WEP encryption,
64 bits 10 hex digits
or
128 bits 26 hex digits
. Then
either generate a WEP key using the Passphrase or enter the WEP key manually.
When you finish making changes to this screen, click the
Save Settings
button to save the changes, or click the
Cancel Changes
button to undo your changes. Help information is shown on the right-hand side of the screen.
For additional help, click
More
.
For detailed instructions on configuring wireless security for the Router, turn to “Appendix B: Wireless Security.”
Figure 5-23: Wireless Tab - Wireless Security (RADIUS)
Figure 5-24: Wireless Tab - Wireless Security (WEP)
IMPORTANT:
If you are using WEP
encryption, always remember that each
device in your wireless network MUST use
the same WEP encryption method and
encryption key, or else your wireless network
will not function properly.
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25
Chapter 5: Configuring the Wireless-G Home Router
The Wireless Tab - MAC Filtering
Wireless-G Home Router
The Wireless Tab - MAC Filtering
Wireless access can be filtered by using the MAC addresses of the wireless devices transmitting within your
network’s radius.
Wireless MAC Filter
. To filter wireless users by MAC Address, either permitting or blocking access, click
Enable
.
If you do not wish to filter users by MAC Address, select
Disable
.
Prevent
. Clicking this button will block wireless access by MAC Address.
Permit Only
. Clicking this button will allow wireless access by MAC Address.
Edit MAC Filter List
. Clicking this button will open the MAC Address Filter List. On this screen, you can list users,
by MAC Address, to whom you wish to provide or block access. For easy reference, click the
Wireless Client
MAC List
button to display a list of network users by MAC Address.
When you finish making changes to this screen, click the
Save Settings
button to save the changes, or click the
Cancel Changes
button to undo your changes. Help information is shown on the right-hand side of the screen.
For additional help, click
More
.
Figure 5-26: MAC Address Filter List
Figure 5-25: Wireless Tab - Wireless MAC Filter
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26
Chapter 5: Configuring the Wireless-G Home Router
The Wireless Tab - Advanced Wireless Settings
Wireless-G Home Router
The Wireless Tab - Advanced Wireless Settings
This tab is used to set up the Router’s advanced wireless functions. These settings should only be adjusted by an
expert administrator as incorrect settings can reduce wireless performance.
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.
Basic 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 setting is
Default
, when the Router can transmit at all standard wireless rates.
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.
Transmission 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 value is
Auto
.
CTS Protection Mode
. CTS (Clear-To-Send) Protection Mode should remain disabled unless you are having
severe problems with your Wireless-G products not being 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.
Frame Burst
. Enabling this option should provide your network with greater performance, depending on the
manufacturer of your wireless products. If you are not sure how to use this option, keep the default,
Disable
.
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 wireless network.
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
.
Figure 5-27: Wireless Tab - Advanced Wireless Settings
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27
Chapter 5: Configuring the Wireless-G Home Router
The Wireless Tab - Advanced Wireless Settings
Wireless-G Home Router
Fragmentation Threshold
. This value 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
reduction of the default value is recommended. In most cases, it should remain at its default value of
2346
.
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
.
STA Isolation
. Creates a separate virtual network for your wireless network. When this feature is enabled, each
of your wireless client will be in its own virtual network and will not be able to communicate with each other. You
may want to utilize this feature if you have many guests that frequent your wireless network.
Max Association
. The maximum number of wireless clients that are allowed to connect to the Router
concurrently. You can choose from 8, 16, 32, 64 and Best Effort.
The default value is set at 16. To achieve better
wireless performance on each wireless client, it is highly suggested to set the lowest value to be suitable for your
connection numbers. Please note that this is a sharing of the total bandwidth. The more you connect, usually the
less speed each client will have .It also depends on the network traffic density ,type of network application etc.
When you finish making changes to this screen, click the
Save Settings
button to save the changes, or click the
Cancel Changes
button to undo your changes. Help information is shown on the right-hand side of the screen.
For additional help, click
More
.
Page 35 / 89
28
Chapter 5: Configuring the Wireless-G Home Router
The Security Tab - Firewall
Wireless-G Home Router
The Security Tab - Firewall
You can enable or disable the firewall, select filters to block specific Internet data types, and block anonymous
Internet requests. Use these features to enhance the security of your network.
Firewall Protection
. This feature employs Stateful Packet Inspection (SPI) for a more detailed review of data
packets entering your network environment.
Additional Filters
Filter Proxy
. Use of WAN proxy servers may compromise the device's security. Denying Filter Proxy will disable
access to any WAN proxy servers. Select to enable proxy filtering, or deselect to disable this feature.
Filter Cookies
. A cookie is data stored on your computer and used by Internet sites when you interact with them.
Select to enable cookie filtering, or deselect to disable this feature.
Filter Java Applets
. Java is a programming language for websites. If you deny Java Applets, you run the risk of
not having access to Internet sites created using this programming language. Select to enable Java Applet
filtering, or deselect to disable this feature.
Filter ActiveX
. ActiveX is a programming language for websites. If you deny ActiveX, you run the risk of not
having access to Internet sites created using this programming language. Select to enable ActiveX filtering, or
deselect to disable this feature.
Block WAN Requests
Block WAN Requests
. Enable the Block WAN Request feature by checking the box beside
Block Anonymous
Internet Requests
and you can prevent your network from being pinged, or detected, by other Internet users.The
Block WAN Request feature also reinforces your network security by hiding your network ports. Both functions of
the Block WAN Request feature make it more difficult for outside users to work their way into your network. This
feature is enabled by default. Deselect to allow anonymous Internet requests.
Filter Multicast
. Multicasting allows for multiple 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 to filter multicasting, or
Deselect
to disable this feature.
Filter Internet NAT Redirection
. This feature uses port forwarding to block access to local servers from local
networked computers. Select to filter Internet NAT redirection, or
Deselect
to disable this feature.
Filter IDENT (Port 113)
. This feature keeps port 113 from being scanned by devices outside of your local
network. Select to filter port 113, or
Deselect
to disable this feature.
Figure 5-28: Security Tab - Firewall

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