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¾

Default Gateway:

select a WAN Interface from the drop-down list as the IPv4 default

gateway.

¾

MTU (bytes):

Maximum Transmission Unit Size. Check this box then you can change the MTU

size. The default

MTU

value is 1500 Bytes. It is not recommended that you change the default

value unless required by your ISP.

¾

Enable NAT:

This technology translates the IP addresses of a local area network to a different

IP address for the Internet. If this Modem Router is hosting your network’s connection to the

Internet, please select the check box. If another Router exists in your network, you don’t need

to select the option.

¾

Enable Fullcone NAT

: It is a type of NAT, if not enabled, the default NAT will act.

¾

Enable SPI Firewall:

A SPI firewall enhances network’s security. Select the option to use a

firewall, or else without a firewall.

¾

Enable

IGMP Proxy

: IGMP (Internet Group Management Protocol) is used to manage

multicasting on TCP/IP networks. Some ISPs use IGMP to perform remote configuration for

client devices, such as the Modem Router. The default value is disabled, and if you are not

sure, please contact your ISP or just leave it.

Click the

Save

button to save the settings.

4.4.1.2 Dynamic IP

Select this option, the Modem Router will be able to obtain IP network information dynamically

from a DHCP server provided by your ISP.

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Figure 4-5

Click

Advanced

, advanced selections for WAN Service Setup can be shown.

¾

MTU (bytes):

Maximum Transmission Unit Size. Check this box then you can change the MTU

size. The default

MTU

value is 1500 Bytes. It is not recommended that you change the default

value unless required by your ISP.

¾

Enable NAT:

This technology translates the IP addresses of a local area network to a different

IP address for the Internet. If this Modem Router is hosting your network’s connection to the

Internet, please select the check box. If another Router exists in your network, you don’t need

to select the option.

¾

Enable Fullcone NAT

: It is a type of NAT, if not enabled, the default NAT will act.

¾

Enable SPI Firewall:

A SPI firewall enhances network’s security. Select the option to use a

firewall, or else without a firewall.

¾

Enable

IGMP Proxy

: IGMP (Internet Group Management Protocol) is used to manage

multicasting on TCP/IP networks. Some ISPs use IGMP to perform remote configuration for

client devices, such as the Modem Router. The default value is disabled, and if you are not

sure, please contact your ISP or just leave it.

¾

Get IP Unicast:

This is disabled

by default. The minority of DHCP Server of ISP will not

support to enable this. When the Route is connected right but IP cannot get, you can select

this box.

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ADSL2+ Modem Router User Guide

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¾

Primary DNS Server/ Secondary DNS Server:

Choose

“Set DNS Server manually”, you can

set DNS Server (at least one) manually here. The Route will use this DNS Server for priority.

Click the

Save

button to save the settings.

4.4.1.3 PPPoE

If your ISP provides a

PPPoE

connection and you need to use an ATM Interface, choose

PPPoE

in the drop-down list, and then the screen will be displayed as below.

Figure 4-6

¾

PPP Username/Password/Confirm Password

: Enter the User Name, Password and

Confirm Password provided by your ISP. These fields are case-sensitive.

¾

Authentication Method

: Select the

Authentication Method

from the drop-down list, the

default method is

AUTO_AUTH

, and you can leave it as a default setting.

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¾

Choose the right connection type according to your needs:

For PPPoE connection, you

can select

Connect on demand

or

Connect automatically

or

Connect manually

. Connect

on demand is dependent on the traffic. If there is no traffic (or

Idle

) for a pre-specified period

of time), the connection will tear down automatically. And once there is traffic send or receive,

the connection will be automatically on.

Click

Advanced

, advanced selections for WAN Service Setup can be shown.

¾

Service Name/Server Name

: Enter the Service Name and Server Name if it was provided by

your ISP. You can leave them blank, if the ISP doesn’t provide them.

4.4.1.4 PPPoA

If your ISP provides a

PPPoA

connection and you need to use an ATM Interface, choose

PPPoA

in the drop-down list, and then the screen will be displayed as below.

The configuration is similar to

PPPoE

. Please refer to the section

4.4.1.3 PPPoE

to configure this

part.

Figure 4-7

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4.4.1.5 IPoA

If your ISP provides an IPoA connection, select

IPoA

option for the

WAN service type

on the

screen.

Figure 4-8

¾

IP Address/Subnet Mask:

Enter the IP Address and Subnet Mask provided by ISP. If you

forget, you can ask your ISP.

¾

DNS Server/Secondary DNS Server:

Type in your preferred DNS server.

¾

Default Gateway:

select a WAN Interface from the drop-down list as the IPv4 default

gateway.

4.4.1.6 Bridge

If you select this type of connection, the modem can be configured to act as a bridging device

between your LAN and your ISP. Bridges are devices that enable two or more networks to

communicate as if they are two segments of the same physical LAN.