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Configuring Your Gateway
Wireless Encryption Settings Menu
Using the Wireless Encryption Settings menu, you can protect the data transmitted across
your wireless network.
To access the Wireless Encryption Settings menu, click
Wireless
in the menu bar and then
click the
Encryption
submenu. Figure 19 shows an example of the menu and Table 7
describes the settings you can select.
Note:
The
Encryption
submenu is not available in the menu bar if wireless operation is
disabled in the Wireless Basic Settings menu (see page 35).
Figure 19. Wireless Encryption Settings Menu
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Configuring Your Gateway
Table 7. Wireless Encryption Settings Menu Options
Option
Description
SSID
Network name of the of the primary wireless carrier. This field usually is predefined and cannot be
changed by users.
Security Mode
Selects the security mode used to protect transmissions across the wireless network.
•
None = no security is used over the wireless network.
•
WEP = Wired Equivalency Privacy encryption is used over the wireless network. Select this option
if your wireless adapters support WEP but not WPA-Personal. WEP provides basic security, but is
not as secure as WPA-Personal. If you select WEP, select the options in Figure 20 and Table 8.
•
WPA-Personal = select this option if your wireless adapters support WPA-Personal. This
encryption method is superior to WEP and offers two cipher types, TKIP and AES, with dynamic
encryption keys. If you select WPA-Personal, select the options in Figure 21 and Table 9. (default)
Figure 20. WEP Options
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Configuring Your Gateway
Table 8. WEP Options
Option
Description
WEP Key Length
Level of WEP encryption applied to all WEP keys. Choices are 64-bit (10 hex digits) and 128-bit (26
hex digits).
WEP Key 1 – WEP Key 3
Fields for entering up to three WEP keys manually. Alternatively, you can have the Generate Keys
button to generate these keys automatically.
Default WEP Key
Specifies which of the three WEP keys the Gateway is to use.
Authentication
Authentication used. Choices are:
•
Open System = clients can only associate to the wireless access point using Open Option.
•
Shared Key = all wireless stations share the same secret key.
•
Automatic = clients can associate to the wireless access point using Open System or Shared Key.
Passphrase
A sequence of words or text that can be used to automatically generate WEP keys. A passphrase
can consist of from 8 to 63 ASCII characters. You can use upper-case, lower-case, and numeric
characters to form your passphrase. A Generate Keys button next to this field lets the Gateway
generate a passphrase based on the characters typed in this field.
Figure 21. WPA-Personal Options
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Configuring Your Gateway
Table 9. WPA-Personal Options
Option
Description
WPA Mode
Lets clients use WPA-PSK, WPA2-PSK, or both WPA modes. Default is Auto.
Cipher type
Algorithm encryption to be used. Choices are:
•
TKIP
•
AES
•
TKIP and AES (
default
)
Group Key Update Interval
Number of seconds that instructs the Gateway how often it should change the encryption keys.
Usually the security level is higher if you set the period shorter to change encryption keys more often.
Default value is 3600 seconds (6 minutes). Type 0 to disable group key update interval.
Pre-shared Key
The shared secret between your Gateway and access points and wireless clients. Please check with
your cable operator to see whether your operator uses a default pre-shared key.
Pre-Authentication
Enables secure fast roaming, without noticeable signal latency. By default, this option is disabled.
MAC Filtering
Using the MAC Filtering menu, you can allow wireless client stations to connect over a
wireless connection in two ways:
y
By allowing all wireless station access.
y
By allowing only trusted PCs.
To access the MAC Filtering menu, click
Wireless
in the menu bar and then click the
MAC
Filtering
submenu. Figure 22 shows an example of the menu and Table 10 describes the
settings you can select.
Note:
The
MAC Filtering
submenu is not available in the menu bar if wireless operation is
disabled in the Wireless Basic Settings menu (see page 35).
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Configuring Your Gateway
Figure 22. MAC Filtering Menu
Table 10. MAC Filtering Options
Option
Description
SSID
Network name of the of the primary wireless carrier. This field usually is predefined and cannot be changed
by users.
MAC Filtering Mode
Determines which wireless client stations can connect to your Gateway. Te choices are:
•
Allow- All = all wireless client stations can connect to the Gateway.
•
Allow = allow only the wireless client stations in the MAC filter table to connect to the Gateway.
•
Deny = no wireless client stations can connect to the Gateway.
Wireless Control List
Shows the device name and MAC address of up to 16 devices that you add to the MAC filter table. To
delete a device, click the radio button to the left of the device you want to delete and click the
Delete
button. A precautionary message does not appear before deleting the MAC address, so be sure you do not
need the MAC address before deleting it.
Auto-Learned Wireless
Devices
Shows the wireless devices whose presence the Gateway has automatically learned.
Manually Added
Wireless Devices
Enter the name and Media Access Channel (MAC) address of the device of the wireless devices to be
used in your MAC filter table. Click
Add
to add the device to the Wireless Control List.
40
SMCD3GN Wireless Cable Modem Gateway User Manual

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