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Chapter 5: Configuring the Wireless-N ADSL2+ Gateway

The Setup Tab

Wireless-N ADSL2+ Gateway

RFC 2516 PPPoE

Some DSL-based ISPs use PPPoE (Point-to-Point Protocol over Ethernet) to establish Internet connections. If

you are connected to the Internet through a DSL line, check with your ISP to see if they use PPPoE. If they do,

you will have to enable PPPoE.

•

User Name and Password. Enter the User Name and Password provided by your ISP.

•

Connect on Demand: Max Idle Time. You can configure the Gateway to disconnect the Internet connection

after it has been inactive for a specified period of time (Max Idle Time). If your Internet connection has

been terminated due to inactivity, Connect on Demand enables the Gateway to automatically re-establish

your connection as soon as you attempt to access the Internet again. To use this option, click the

Connect

on Demand

radio button. In the

Max Idle Time

field, enter the number of minutes you want to have

elapsed before your Internet connection terminates.

•

Keep Alive: Redial Period. If you select this option, the Gateway will periodically check your Internet

connection. If you are disconnected, then the Gateway will automatically re-establish your connection. To

use this option, click the

Keep Alive

radio button. In the

Redial Period

field, specify how often you want

the Gateway to check the Internet connection.

The default Redial Period is

30

seconds.

RFC 2364 PPPoA

Some DSL-based ISPs use PPPoA (Point-to-Point Protocol over ATM) to establish Internet connections. If you

are connected to the Internet through a DSL line, check with your ISP to see if they use PPPoA. If they do, you

will have to enable PPPoA.

•

User Name and Password. Enter the User Name and Password provided by your ISP.

•

Connect on Demand: Max Idle Time. You can configure the Gateway to disconnect the Internet connection

after it has been inactive for a specified period of time (Max Idle Time). If your Internet connection has

been terminated due to inactivity, Connect on Demand enables the Gateway to automatically re-establish

your connection as soon as you attempt to access the Internet again. To use this option, click the

Connect

on Demand

radio button. In the

Max Idle Time

field, enter the number of minutes you want to have

elapsed before your Internet connection terminates.

Keep Alive: Redial Period. If you select this option, the Gateway will periodically check your Internet

connection. If you are disconnected, then the Gateway will automatically re-establish your connection. To

use this option, click the

Keep Alive

radio button. In the

Redial Period

field, specify how often you want

the Gateway to check the Internet connection.

The default Redial Period is

30

seconds.

Figure 5-6: RFC 2364 PPPoA

Figure 5-5: RFC 2516 PPPoE

IMPORTANT:

For Connect on Demand to work

correctly, close all Internet applications or the

Gateway may not drop the connection depending

on how often the application tries to get on the

Internet (e.g., chat programs).

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Chapter 5: Configuring the Wireless-N ADSL2+ Gateway

The Setup Tab

Wireless-N ADSL2+ Gateway

Bridge Mode Only

If you are using your Gateway as a bridge, which makes the Gateway act like a stand-alone modem, select

Bridge Mode Only

. All NAT and routing settings are disabled in this mode.

Optional Settings (required by some ISPs)

•

Host Name and Domain Name. These fields allow you to supply a host and domain name for the Gateway.

Some ISPs require these names as identification. You may have to check with your ISP to see if your

broadband Internet service has been configured with a host and domain name. In most cases, you can leave

these fields blank.

•

MTU and Size. The MTU (Maximum Transmission Unit) setting specifies the largest packet size permitted for

network transmission. Select

Manual

and enter the value desired in the

Size

field. It is recommended that

you leave this value in the 1200 to 1500 range. By default, MTU is configured automatically.

Network Setup

•

Router IP. The values for the Gateway’s Local IP Address and Subnet Mask are shown here. In most cases,

keeping the default values will work.

•

Local IP Address. The default value is

192.168.1.1

.

•

Subnet Mask. The default value is

255.255.255.0

.

•

Network Address Server Settings (DHCP). Configure the Gateway’s Dynamic Host Configuration Protocol

(DHCP) settings in this section.

•

DHCP Server. A Dynamic Host Configuration Protocol (DHCP) server automatically assigns an IP address to

each computer on your network for you. Unless you already have one, it is highly recommended that you

leave the Gateway enabled as a DHCP server. You can also use the Gateway in DHCP Relay mode. (This

setting is not available for all Encapsulation types.)

•

DHCP Server. If you enable the DHCP Relay mode for the

DHCP Server

setting, enter the IP address for the

DHCP relay server in the fields provided. (This setting is not available for all Encapsulation types.)

•

Starting IP Address. Enter a value for the DHCP server to start with when issuing IP addresses. This value

must be 192.168.1.2 or greater, because the default IP address for the Gateway is

192.168.1.1

.

•

Maximum Number of DHCP Users. Enter the maximum number of users/clients that can obtain an IP

address. The number will vary depending on the starting IP address entered.

Figure 5-8: Optional Settings

Figure 5-7: Bridge Mode Only

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Chapter 5: Configuring the Wireless-N ADSL2+ Gateway

The Setup Tab

Wireless-N ADSL2+ Gateway

•

Client Lease Time. The Client Lease Time is the amount of time a computer will be allowed connection to

the Gateway with its current dynamic IP address. Enter the amount of time, in minutes, that the computer

will be “leased” this dynamic IP address.

•

Static DNS 1-3. The Domain Name System (DNS) is how the Internet translates domain or website names

into Internet addresses or URLs. Your ISP will provide you with at least one DNS Server IP Address. You

can enter up to three DNS Server IP Addresses here. The Gateway will use these for quicker access to

functioning DNS servers.

•

WINS. The Windows Internet Naming Service (WINS) converts NetBIOS names to IP addresses. If you use a

WINS server, enter that server’s IP address here. Otherwise, leave this field blank.

•

Time Setting. Select the appropriate time zone for the Gateway’s location. If desired, check the

Automatically adjust clock for daylight saving changes

checkbox.

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.

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Chapter 5: Configuring the Wireless-N ADSL2+ Gateway

The Setup Tab

Wireless-N ADSL2+ Gateway

The DDNS Tab

The Gateway offers a Dynamic Domain Name System (DDNS) feature. DDNS lets you assign a fixed host and

domain name to a dynamic Internet IP address. It is useful when you are hosting your own website, FTP server, or

other server behind the Gateway.

Before you can use this feature, you need to sign up for DDNS service at DynDNS.org or TZO.com.

DDNS

DDNS Service. If your DDNS service is provided by DynDNS.org, then select

DynDNS.org

from the drop-down

menu. If your DDNS service is provided by TZO.com, then select

TZO.com

from the drop-down menu. To disable

DDNS Service, select

Disabled

.

DynDNS.org

•

User Name, Password, and Host Name. Enter the User Name, Password, and Host Name of the account you

set up with DynDNS.org.

•

Status. The status of the DDNS service connection is displayed here.

•

Connect. Click the

Connect

button to start the DDNS service connection.

TZO.com

•

E-mail Address, Password, and Domain Name. Enter the E-mail Address, Password, and Domain Name of the

account you set up with TZO.

•

Status. The status of the DDNS service connection is displayed here.

•

Connect. Click the

Connect

button to start the DDNS service connection.

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 5-9: DDNS - DynDNS.org

Figure 5-10: DDNS - TZO.com

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Chapter 5: Configuring the Wireless-N ADSL2+ Gateway

The Setup Tab

Wireless-N ADSL2+ Gateway

The Advanced Routing Tab

The

Advanced Routing

screen allows you to configure the NAT, dynamic routing, and static routing settings.

Advanced Routing

•

Operating Mode. In this section, you will configure the Gateway’s general routing settings.

•

NAT. NAT is a security feature that is enabled by default. It enables the Gateway to translate IP addresses

of your local area network to a different IP address for the Internet. To disable NAT, click the

Disabled

radio button.

•

Dynamic Routing. With Dynamic Routing you can enable the Gateway to automatically adjust to physical

changes in the network’s layout. Using RIP, the Gateway determines the network packets’ route based on the

fewest number of hops between the source and the destination. The RIP protocol regularly broadcasts routing

information to other Gateways on the network.

•

RIP. If you have multiple routers, you may want to use the Routing Information Protocol (RIP) so the routers

can exchange routing information with each other. To use RIP, select the

Enabled

radio button. Otherwise,

keep the default,

Disabled

.

•

RIP Version. Select the protocol version you want,

RIP1

or

RIPv2

.

•

Static Routing. If the Gateway is connected to more than one network, it may be necessary to set up a static

route between them. A static route is a pre-determined pathway that network information must travel to

reach a specific host or network. To create a static route, change the following settings:

•

Select set number. Select the number of the static route from the drop-down menu. The Gateway

supports up to 20 static route entries. If you need to delete a route, then select the entry and click the

Delete This Entry

button.

•

Destination IP Address. The Destination IP Address is the address of the remote network or host to which

you want to assign a static route. Enter the IP address of the host for which you wish to create a static

route. If you are building a route to an entire network, be sure that the network portion of the IP address is

set to 0.

•

Subnet Mask. Enter the Subnet Mask (also known as the Network Mask), which determines which portion

of an IP address is the network portion, and which portion is the host portion.

•

Gateway. Enter the IP address of the gateway device that allows for contact between the Gateway and the

remote network or host.