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Page 81 / 165 Scroll up to view Page 76 - 80
71
Chapter 8: Configuring the Wireless-G Router for 3G/UMTS Broadband
The Wireless Tab - Wireless Security
Wireless-G Router for 3G/UMTS Broadband
WPA Enterprise
. This option features WPA used in coordination with a RADIUS server. (This should only be used
when a RADIUS server is connected to the Router.) First, select the type of WPA algorithm you want to use,
TKIP
+ AES
, or
AES
. Enter the RADIUS server’s IP Address and port number, along with a key shared between the
Router and the server. Last, enter a Key Renewal Timeout, which instructs the Router how often it should change
the encryption keys.
Change these settings as described here, and click the
Save Settings
button to apply your changes or
Cancel
Changes
to cancel your changes.
Figure 8-27: Wireless Tab - Wireless Security (WPA2
Personal - AES)
Figure 8-28: Wireless Tab - Wireless Security (WPA
Enterprise - TKIP+AES)
Figure 8-29: Wireless Tab - Wireless Security (WPA
Enterprise - AES)
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72
Chapter 8: Configuring the Wireless-G Router for 3G/UMTS Broadband
The Wireless Tab - Wireless Security
Wireless-G Router for 3G/UMTS Broadband
WPA2 Enterprise
. This option features WPA2 used in coordination with a RADIUS server. (This should only be
used when a RADIUS server is connected to the Router.) WPA2 automatically uses TKIP + AES or AES with
dynamic encryption keys. Enter the RADIUS server’s IP Address and port number, along with a key shared
between the Router and the server. Last, enter a Key Renewal Timeout, which instructs the Router how often it
should change the encryption keys.
Change these settings as described here, and click the
Save Settings
button to apply your changes or
Cancel
Changes
to cancel your changes.
Figure 8-30: Wireless Tab - Wireless Security (WPA2
Enterprise - TKIP+AES)
Figure 8-31: Wireless Tab - Wireless Security (WPA2
Enterprise - AES)
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73
Chapter 8: Configuring the Wireless-G Router for 3G/UMTS Broadband
The Wireless Tab - Wireless Security
Wireless-G Router for 3G/UMTS Broadband
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. If you are using 64-bit WEP encryption, the key
must be exactly 10 hexadecimal characters in length. If you are using 128-bit WEP encryption, the key must be
exactly 26 hexadecimal characters in length. Valid hexadecimal characters are “0”-“9” and “A”-“F”.
Change these settings as described here, and click the
Save Settings
button to apply your changes or
Cancel
Changes
to cancel your changes.
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. If you are using 64-bit WEP
encryption, the key must be exactly 10 hexadecimal characters in length. If you are using 128-bit WEP
encryption, the key must be exactly 26 hexadecimal characters in length. Valid hexadecimal characters are “0”-
“9” and “A”-“F”.
Change these settings as described here, and click the
Save Settings
button to apply your changes or
Cancel
Changes
to cancel your changes.
For detailed instructions on configuring wireless security for the Router, turn to “Appendix B: Wireless Security.”
Figure 8-32: Wireless Tab - Wireless Security (RADIUS)
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.
Figure 8-33: Wireless Tab - Wireless Security (WEP)
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74
Chapter 8: Configuring the Wireless-G Router for 3G/UMTS Broadband
The Wireless Tab - Wireless MAC Filter
Wireless-G Router for 3G/UMTS Broadband
The Wireless Tab - Wireless MAC Filter
Wireless access can be filtered by using the MAC addresses of the wireless devices transmitting within your
network’s radius.
Wireless MAC Filter
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 Address 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.
To save your list of MAC addresses, click the
Save Settings
button to apply your changes or
Cancel Changes
to
cancel your changes.
Change these settings as described here, and click the
Save Settings
button to apply your changes or
Cancel
Changes
to cancel your changes.
Figure 8-34: Wireless Tab - Wireless MAC Filter
Figure 8-35: MAC Address Filter List
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75
Chapter 8: Configuring the Wireless-G Router for 3G/UMTS Broadband
The Wireless Tab - Advanced Wireless Settings
Wireless-G Router for 3G/UMTS Broadband
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.
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.
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
(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.
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
Figure 8-36: Wireless Tab - Advanced Wireless Settings
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