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Appendix B: Wireless Security
Security Threats Facing Wireless Networks
Wireless-G Media Storage Link Router with SpeedBooster
WPA Enterprise and WPA2 Enterprise use a RADIUS (Remote Authentication Dial-In User Service) server for
authentication. RADIUS uses a RADIUS server and WEP encryption.
WPA Personal
. Select the type of algorithm, TKIP or AES, and enter a password in the
Passphrase
field of
8-63 characters. Enter a Group Key Renewal period time between 0 and 99,999 seconds, which instructs the
Router or other device how often it should change the encryption keys.
WPA2 Personal
. WPA2 uses TKIP + AES, with dynamic encryption keys. Enter a Passphrase of 8-63
characters. Then enter a Group Key Renewal period, which instructs the Router or other device how often it
should change the encryption keys.
WPA Enterprise
. This method is WPA used in coordination with a RADIUS server. Enter the IP address and
port number of the RADIUS server. Then enter the key shared between the Router and its RADIUS server. Then
enter a Key Renewal Timeout period, which instructs the Router or other device how often it should change
the encryption keys.
WPA2 Enterprise
. This method is WPA2 used in coordination with a RADIUS server. Enter the IP address and
port number of the RADIUS server. Then enter the key shared between the Router and its RADIUS server. Then
enter a Key Renewal Timeout period, which instructs the Router or other device how often it should change
the encryption keys.
RADIUS
. This method is WEP used in coordination with a RADIUS server. Enter the IP address and port
number of the RADIUS server. Then enter the key shared between the Gateway and its RADIUS server. Enter
the WEP settings.
Implementing encryption may have a negative impact on your network’s performance, but if you are transmitting
sensitive data over your network, encryption should be used.
These security recommendations should help keep your mind at ease while you are enjoying the most flexible
and convenient technology Linksys has to offer.
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70
Appendix C: Upgrading Firmware
Wireless-G Media Storage Link Router with SpeedBooster
Appendix C: Upgrading Firmware
The Router's firmware is upgraded through the Web-based Utility's Administration tab. Follow these instructions:
1.
Download the firmware from Linksys's website at
www.linksys.com
.
2.
Extract the firmware file on your computer.
3.
Open the Router’s Web-based Utility, and click the
Administration
tab.
4.
Click
Firmware Upgrade
, and the
Upgrade Firmware
screen will appear.
5.
Enter the location of the firmware's file or click the
Browse
button to find the file.
6.
Then click the
Upgrade
button and follow the on-screen instructions.
Figure C-1: Upgrade Firmware
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71
Appendix D: Windows Help
Wireless-G Media Storage Link Router with SpeedBooster
Appendix D: Windows Help
Almost Linksys wireless products require Microsoft Windows. Windows is the most used operating system in the
world and comes with many features that help make networking easier. These features can be accessed through
Windows Help and are described in this appendix.
TCP/IP
Before a computer can communicate with the Router, TCP/IP must be enabled. TCP/IP is a set of instructions, or
protocol, all PCs follow to communicate over a network. This is true for wireless networks as well. Your PCs will
not be able to utilize wireless networking without having TCP/IP enabled. Windows Help provides complete
instructions on enabling TCP/IP.
Shared Resources
If you wish to share printers, folder, or files over your network, Windows Help provides complete instructions on
utilizing shared resources.
Network Neighborhood/My Network Places
Other PCs on your network will appear under Network Neighborhood or My Network Places (depending upon the
version of Windows you're running). Windows Help provides complete instructions on adding PCs to your
network.
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72
Appendix E: Finding the MAC Address and IP Address for Your Ethernet Adapter
Windows 98SE or Me Instructions
Wireless-G Media Storage Link Router with SpeedBooster
Appendix E: Finding the MAC Address and IP Address for Your
Ethernet Adapter
This section describes how to find the MAC address for your computer’s Ethernet adapter so you can use the MAC
filtering and/or MAC address cloning feature of the Router. You can also find the IP address of your computer’s
Ethernet adapter. This IP address is used for the Router’s filtering, forwarding, and/or DMZ features. Follow the
steps in this appendix to find the adapter’s MAC or IP address in Windows 98, Me, 2000, or XP.
Windows 98SE or Me Instructions
1.
Click
Start
and
Run
. In the
Open
field, enter
winipcfg
. Then press the
Enter
key or the
OK
button.
2.
When the
IP Configuration
screen appears, select the Ethernet adapter you have connected to the Router via a
CAT 5 Ethernet network cable. See Figure E-1.
3.
Write down the Adapter Address as shown on your computer screen (see Figure E-2). This is the MAC address
for your Ethernet adapter and is shown as a series of numbers and letters.
The MAC address/Adapter Address is what you will use for MAC address cloning or MAC filtering.
The example in Figure E-3 shows the Ethernet adapter’s IP address as 192.168.1.100. Your computer may
show something different.
Windows 2000 or XP Instructions
1.
Click
Start
and
Run
. In the
Open
field, enter
cmd
. Press the
Enter
key or click the
OK
button.
2.
At the command prompt, enter
ipconfig /all
. Then press the
Enter
key.
3.
Write down the Physical Address as shown on your computer screen (Figure E-3); it is the MAC address for
your Ethernet adapter. This appears as a series of numbers and letters.
Figure E-2: MAC Address/Adapter Address
Figure E-1: IP Configuration Screen
NOTE:
The MAC address is also called the Adapter Address.
Figure E-3: MAC Address/Physical Address
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73
Appendix E: Finding the MAC Address and IP Address for Your Ethernet Adapter
For the Router’s Web-based Utility
Wireless-G Media Storage Link Router with SpeedBooster
The MAC address/Physical Address is what you will use for MAC address cloning or MAC filtering.
The example in Figure E-3 shows the Ethernet adapter’s IP address as 192.168.1.100. Your computer may
show something different.
For the Router’s Web-based Utility
For wireless MAC filtering, enter the 12-digit MAC address in this format, XXXXXXXXXXXX, WITHOUT the hyphens.
See Figure E-4.
For MAC address cloning, enter the 12-digit MAC address in the
MAC Address
fields provided, two digits per field.
See Figure E-5.
Figure E-4: MAC Address Filter List
NOTE:
The MAC address is also called the Physical Address.
Figure E-5: MAC Address Clone
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