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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SMCD3GN Wireless Cable Modem Gateway User Manual

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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SMCD3GN Wireless Cable Modem Gateway User Manual

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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SMCD3GN Wireless Cable Modem Gateway User Manual

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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SMCD3GN Wireless Cable Modem Gateway User Manual

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.

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SMCD3GN Wireless Cable Modem Gateway User Manual