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Chapter 4: Configuring the Gateway

The Setup Tab

Wireless-G ADSL Gateway with 2 Phone Ports

•

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.

•

Show Routing Table. Click the

Show Routing Table

button to open a screen displaying how data is routed

through your network. For each route, the Destination 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.

PVC Routing Policy

. PVC stands for "Permanent Virtual Circuit".

It is a virtual circuit link between two nodes for

ATM (Asynchronous Transfer Mode) network. Each PVC functions as a separate Internet connection. PVC settings

are for ADVANCED USERS ONLY. The PVC routing table allows you to select which traffic type to be forwarded to

which PVC. Click the

PVC Routing Setting

button to open the PVC Routing table.

•

Please select active connection. Select your active Internet connection from this pull-down menu.

•

Destination. Enter the destination Internet IP Address and Network Mask where this PVC will send data.

•

Source. Enter the source IP Address and Network Mask where this PVC will originate.

•

Source Mac. Enter the source MAC Address of the network PC where the data originates.

•

Protocol. Enter the data’s protocol, either TCP,UDP or ALL.

•

Dst Port. Enter the destination port number where this PVC will send data.

•

Src Port. Enter the source port number where this PVC will originate.

•

802.1D User Priority. This uses the 802.1D header requirement to set prioritization.

The number range is

0~7 depending on the type of services, with 7 having the highest priority.

•

802.3 Type/Length. Enter the Ethernet type for a specific protocol.

•

802.1Q Vlan ID. This is the ID for VLANs, from 0 ~ 4095

•

PacketLength. This is the total packet length of an IP packet, from 20byte~65535bytes.

•

DSCP. Enter the TOS (Type of Service) in the IP header here.

Possible values are 0x00 to 0x3f, the last two

Hex values are the variables.

•

Apply. Check this and click the

Save

button to apply your changes

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.

Figure 4-14: Routing Table

Figure 4-15: PVC Selection Table

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Chapter 4: Configuring the Gateway

The Wireless Tab

Wireless-G ADSL Gateway with 2 Phone Ports

The Wireless Tab

Basic Wireless Settings Tab

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

Wireless Network

Wireless Network Mode

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

setting,

Mixed

. If you have only 802.11g devices, select

802.11g

. If you have only 802.11b devices, select

802.11b

. If you want to disable wireless networking, select

Disabled

.

Wireless 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. The SSID 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.

Wireless Channel

. Select the appropriate channel from the list provided to correspond with your network

settings, between 1 and 11 (in North America). All devices in your wireless network must use the same channel in

order to function correctly. Linksys wireless clients will automatically detect the wireless channel of the Gateway.

Wireless SSID Broadcast

. When wireless 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.

Figure 4-16: Wireless Tab - Wireless Network

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Chapter 4: Configuring the Gateway

The Wireless Tab

Wireless-G ADSL Gateway with 2 Phone Ports

Wireless Security Tab

The Gateway’s wireless security settings configure the security of your wireless network. There are three

wireless security mode options supported by the Gateway: WPA Pre-Shared Key, WPA RADIUS, and WEP. (WPA

stands for Wi-Fi Protected Access, which is a security standard stronger than WEP encryption. WEP stands for

Wired Equivalent Privacy, while RADIUS stands for Remote Authentication Dial-In User Service.) 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.

WPA Pre-Shared Key

. Enter a WPA Shared Key of 8-32 characters. Then, enter a Group Key Renewal period,

which instructs the Gateway how often it should change the encryption keys.

WPA RADIUS

. This option features WPA used in coordination with a RADIUS server. (This should only be used

when a RADIUS server is connected to the Gateway.) Enter the RADIUS server’s IP Address and port number,

along with a key shared between the Gateway and the server. Then, enter a Key Renewal Timeout, which

instructs the Gateway how often it should change the encryption keys.

Figure 4-17: Wireless Tab - Wireless Security

(WPA Pre-Shared Key)

Figure 4-18: Wireless Tab - Wireless Security

(WPA RADIUS)

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Chapter 4: Configuring the Gateway

The Wireless Tab

Wireless-G ADSL Gateway with 2 Phone Ports

WPA2 Professional

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

Select the type of algorithm, AES, or TKIP + AES. Enter a WPA2 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 WPA2 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 4-19: Wireless Tab - Wireless Security (WPA2

Professional)

Figure 4-20: Wireless Tab - Wireless Security (WPA2

Enterprise)

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Chapter 4: Configuring the Gateway

The Wireless Tab

Wireless-G ADSL Gateway with 2 Phone Ports

WEP

. WEP is a basic encryption method, which is not as secure as WPA. To use WEP, select a Default 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 a Passphrase or enter the WEP key manually.

•

WEP Encryption. An acronym for Wired Equivalent Privacy, WEP is an encryption method used to protect your

wireless data communications. WEP uses 64-bit or 128-bit keys to provide access control to your network

and encryption security for every data transmission. To decode data transmissions, all devices in a network

must use an identical WEP key. Higher encryption levels offer higher levels of security, but due to the

complexity of the encryption, they may decrease network performance. To enable WEP, select

64 bits (10

hex digits)

or

128 bits (26 hex digits)

.

•

Default Transmit Key

Select which WEP key (1-4) will be used when the Gateway sends data. Make sure that

the receiving device (wireless client) is using the same key.

•

Passphrase. Instead of manually entering WEP keys, you can enter a passphrase. This passphrase is used to

generate one or more WEP keys. 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 key generated in the Key 1 field, and enter it

manually in the wireless client.) After you enter the Passphrase, click the

Generate

button to create WEP

keys.

•

WEP Keys 1-4. WEP keys enable you to create an encryption scheme for wireless network transmissions. 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 64-bit WEP encryption, the key must be

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

26 hexadecimal characters in length. Valid hexadecimal characters are “0”-“9” and “A”-“F”.

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. For detailed instructions on configuring wireless security for

the Gateway, turn to

Appendix B: Wireless Security

.

Figure 4-21: Wireless Tab - Wireless Security (WEP)

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