24

Chapter 5: Configuring the Wireless-G Broadband Router with 2 Phone Ports

The Wireless Tab - Wireless Security

Wireless-G Broadband Router with 2 Phone Ports

WPA2 Personal

. WPA2 gives you two encryption methods, TKIP and AES, with dynamic encryption keys. Select

the type of algorithm,

AES

, or

TKIP +

AES

. Enter a WPA Shared Key of 8-63 characters. Then enter a Group Key

Renewal period, which instructs the Router how often it should change the encryption keys.

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.) First, select the type of WPA algorithm you want to use,

AES

, or

TKIP +

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.

Figure 5-20: Wireless Tab - Wireless Security

(WPA2 Personal)

Figure 5-21: Wireless Tab - Wireless Security

(WPA2 Enterprise)

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Chapter 5: Configuring the Wireless-G Broadband Router with 2 Phone Ports

The Wireless Tab - Wireless Security

Wireless-G Broadband Router with 2 Phone Ports

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.

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 5-22: Wireless Tab - Wireless Security (RADIUS)

Figure 5-23: 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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26

Chapter 5: Configuring the Wireless-G Broadband Router with 2 Phone Ports

The Wireless Tab - Wireless MAC Filter

Wireless-G Broadband Router with 2 Phone Ports

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

. 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.

Change these settings as described here and click the

Save Settings

button to apply your changes or

Cancel

Changes

to cancel your changes.

Figure 5-25: MAC Address Filter List

Figure 5-24: Wireless Tab - Wireless MAC Filter

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27

Chapter 5: Configuring the Wireless-G Broadband Router with 2 Phone Ports

The Wireless Tab - Advanced Wireless Settings

Wireless-G Broadband Router with 2 Phone Ports

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

(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.

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

.

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

Figure 5-26: Wireless Tab - Advanced Wireless Settings

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Chapter 5: Configuring the Wireless-G Broadband Router with 2 Phone Ports

The Wireless Tab - Advanced Wireless Settings

Wireless-G Broadband Router with 2 Phone Ports

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

.

Change these settings as described here and click the

Save Settings

button to apply your changes or

Cancel

Changes

to cancel your changes.

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