20

Chapter 5: Configuring the Wireless-N ADSL2+ Gateway

The Setup Tab

Wireless-N ADSL2+ Gateway

•

Hop Count. Hop Count is the number of hops to each node until the destination is reached (16 hops

maximum). Enter the Hop Count in the field provided.

•

Show Routing Table. Click the

Show Routing Table

button to open a screen displaying how data is routed

through your local network. For each route, the Destination LAN IP address, Subnet Mask, Gateway, and

Interface are displayed. Click the

Refresh

button to update the information. Click the

Close

button to return to

the previous screen.

When finished making your changes on this tab, click the

Save Settings

button to save these changes, or click

the

Cancel Changes

button to undo your changes. Click

Help

for more information.

Figure 5-12: Routing Table

21

Chapter 5: Configuring the Wireless-N ADSL2+ Gateway

The Wireless Tab

Wireless-N ADSL2+ Gateway

The Wireless Tab

The Basic Wireless Settings Tab

This screen allows you to choose your wireless network mode and wireless security.

Wireless Network

•

Network Mode. If you have 802.11g and 802.11b devices in your network, then keep the default setting,

Mixed

. If you have only Wireless-G devices, select

Wireless-G Only

. If you have only Wireless-B devices,

select

Wireless-B Only

. If you have only Wireless-N devices, select

Wireless-N Only

. If you want to disable

wireless networking, select

Disable

.

•

Network Name (SSID). Enter the name for your wireless network into the field. The SSID is the network name

shared among all devices in a wireless network. It must be identical for all devices in the wireless network. It

is case-sensitive and must not exceed 32 alphanumeric characters, which may be any keyboard character.

Linksys recommends that you change the default SSID (linksys) to a unique name of your choice.

•

Radio Band. For best performance in a network using Wireless-N, Wireless-G and Wireless-B devices, keep

the default,

Wide - 40MHz Channel

. For Wireless-G and Wireless-B networking only, select

Standard -

20MHz Channel

.

•

Wide Channel. If you selected Wide - 40MHz Channel for the Radio Band setting, then this setting will be

available for your primary Wireless-N channel. Select any channel from the drop-down menu.

•

Standard Channel. Select the channel for Wireless-N, Wireless-G, and Wireless-B networking. If you selected

Wide – 40MHz Channel for the Radio Band setting, then the Standard Channel will be a secondary channel for

Wireless-N. If you are not sure which channel to select, do not make any changes.

•

Wireless SSID Broadcast. When wireless computers or clients survey the local area for wireless networks to

associate with, they will detect the SSID broadcast by the Gateway. To broadcast the Gateway's SSID, keep

the default setting,

Enable

. If you do not want to broadcast the Gateway's SSID, then select

Disable

.

When finished making your changes on this tab, click the

Save Settings

button to save these changes, or click

the

Cancel Changes

button to undo your changes. Click

Help

for more information.

Figure 5-13: Basic Wireless Settings

NOTE:

If you select Wide - 40MHz Channel for the

Radio Band setting, then Wireless-N can use two

channels: a primary one (Wide Channel) and a

secondary one (Standard Channel). This will

enhance Wireless-N performance.

22

Chapter 5: Configuring the Wireless-N ADSL2+ Gateway

The Wireless Tab

Wireless-N ADSL2+ Gateway

The Wireless Security Tab

The Wireless Security settings configure the security of your wireless network. There are six wireless security

options supported by the Gateway: WPA-Personal, WPA2-Personal, WPA-Enterprise, WPA2-Enterprise, RADIUS,

and WEP. WPA stands for Pre-Shared Key, which is a security standard stronger than WEP (Wired Equivalent

Privacy) encryption. WPA2 is a more advanced, more secure version of WPA. WPA-Enterprise, WPA2-Enterprise,

and RADIUS use a RADIUS (Remote Authentication Dial-In User Service) server for authentication. These are

briefly discussed here. For detailed instructions on configuring wireless security for the Gateway, turn to

“Appendix B: Wireless Security.”

If you want to disable wireless security, select

Disable

from the drop-down menu for Security Mode.

•

Security Mode. Select the mode you want your network to use,

WPA-Personal

,

WPA2-Personal

,

WPA-Enterprise

,

WPA2-Enterprise

,

RADIUS

,

or

WEP

. If you have devices using WPA-Personal and WPA2-

Personal, select

WPA2-Personal

.

WPA-Personal

•

Encryption. Select the method you want to use,

TKIP

or

AES

. (AES is a stronger encryption method than TKIP.)

•

Pre-shared Key. Enter the key shared by the Gateway and your other network devices. It must have

8 to 63 characters.

•

Key Renewal. Enter the Key Renewal period, which tells the Gateway how often it should change the dynamic

encryption keys.

When you have finished making changes to this screen, click the

Save Settings

button to save the changes, or

click the

Cancel Changes

button to undo your changes. Click

Help

for more information.

WPA2-Personal

•

Encryption. Select the method you want to use,

AES

or

TKIP or AES

.

•

Pre-shared Key. Enter the key shared by the Gateway and your other network devices. It must have

8 to 63 characters.

•

Key Renewal. Enter the Key Renewal period, which tells the Gateway how often it should change the dynamic

encryption keys.

When you have finished making changes to this screen, click the

Save Settings

button to save the changes, or

click the

Cancel Changes

button to undo your changes. Click

Help

for more information.

Figure 5-15: Wireless Security - WPA2-Personal

Figure 5-14: Wireless Security - WPA-Personal

IMPORTANT:

If you are using wireless security,

always remember that each device in your

wireless network MUST use the same wireless

security method and shared key, or else the

network will not function correctly. If you have

devices using WPA-Personal and WPA2-Personal,

you should use WPA2-Personal.

23

Chapter 5: Configuring the Wireless-N ADSL2+ Gateway

The Wireless Tab

Wireless-N ADSL2+ Gateway

WPA-Enterprise

WPA-Enterprise features WPA used with a RADIUS server. (This method should only be used when the Gateway is

connected to a RADIUS server.)

•

Encryption. Select the method you want to use,

TKIP

or

AES

. (AES is a stronger encryption method than TKIP.)

•

RADIUS Server. Enter the IP address of the RADIUS server.

•

RADIUS Port. Enter the port number of the RADIUS server.

•

Shared Key. Enter the key shared between the Gateway and its RADIUS server.

•

Key Renewal. Enter the Key Renewal period, which tells the Gateway how often it should change the dynamic

encryption keys.

When finished making your changes on this tab, click the

Save Settings

button to save these changes, or click

the

Cancel Changes

button to undo your changes. Click

Help

for more information.

WPA2-Enterprise

WPA2-Enterprise features WPA2 used with a RADIUS server. (This method should only be used when the Gateway

is connected to a RADIUS server.)

•

Encryption. Select the method you want to use,

AES

or

TKIP or AES

.

•

RADIUS Server. Enter the IP address of the RADIUS server.

•

RADIUS Port. Enter the port number of the RADIUS server.

•

Shared Key. Enter the key shared between the Gateway and its RADIUS server.

•

Key Renewal. Enter the Key Renewal period, which tells the Gateway how often it should change the dynamic

encryption keys.

When finished making your changes on this tab, click the

Save Settings

button to save these changes, or click

the

Cancel Changes

button to undo your changes. Click

Help

for more information.

Figure 5-16: Wireless Security - WPA-Enterprise

Figure 5-17: Wireless Security - WPA2-Enterprise

24

Chapter 5: Configuring the Wireless-N ADSL2+ Gateway

The Wireless Tab

Wireless-N ADSL2+ Gateway

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 Gateway.)

•

RADIUS Server. Enter the IP address of the RADIUS server.

•

RADIUS Port. Enter the port number of the RADIUS server.

•

Shared Key. Enter the key shared between the Gateway and its RADIUS server.

•

Encryption. Select the appropriate level of encryption,

40/64-bit (10 hex digits)

or

104/128-bit (26 hex

digits)

. A higher level of encryption is more secure.

•

Passphrase. Instead of manually entering WEP keys, you can enter a Passphrase. It is case-sensitive and

should not be longer than 32 alphanumeric characters. (This Passphrase function is compatible with Linksys

wireless products only and cannot be used with Windows XP Zero Configuration. If you want to communicate

with non-Linksys wireless products or Windows XP Zero Configuration, make a note of the WEP keys

generated, and enter the appropriate one manually in the wireless computer or client.) If you want to use a

Passphrase, then enter it in the

Passphrase

field and click the

Generate

button.

•

Keys 1-4. If you are not using a Passphrase, then manually enter a set of values. (Do not leave a key field

blank, and do not enter all zeroes; they are not valid key values.) If you are using 40/64-bit WEP encryption,

the key must be exactly 10 hexadecimal characters in length. If you are using 104/128-bit WEP encryption,

the key must be exactly 26 hexadecimal characters in length. Valid hexadecimal characters are “0”-“9” and

“A”-“F”.

•

TX Key. To indicate which WEP key to use, select a default Transmit (TX) Key number.

When you have finished making changes to this screen, click the

Save Settings

button to save the changes, or

click the

Cancel Changes

button to undo your changes. For more information, click

Help

.

Figure 5-18: Wireless Security - RADIUS