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300Mbps Wireless N ADSL2+ Modem Router User Guide

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Figure 4-11



Router Local IP:

These are the IP settings of the LAN interface for the device. These

settings may be referred to as Private settings. You may change the LAN IP address if

needed. The LAN IP address is private to your internal network and cannot be seen on the

Internet.



IP Address:

Enter the modem router’s local IP Address, then you can access to the

Web-based Utility via the IP Address, the default value is 192.168.1.1.



IP Subnet Mask:

Enter the modem router’s Subnet Mask, the default value is

255.255.255.0.



Dynamic Route:

Select this option to specify the RIP (Routing Information protocol)

version for LAN interface, including

RIP1

,

RIP2-B

and

RIP2-M

. RIP2-B and RIP2-M are

both sent in RIP2 format, the difference is that RIP2-M using Multicast, while RIP2-B

using Broadcast format.



Direction:

Select this option to specify the RIP direction.

None

is for disabling the RIP

function.

Both

means the ADSL modem router will periodically send routing information

and accept routing information, and then incorporate them into routing table.

IN only

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300Mbps Wireless N ADSL2+ Modem Router User Guide

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means the ADSL modem router will only accept but will not send RIP packet.

OUT only

means the ADSL modem router will only send but will not accept RIP packet.



Multicast:

Select IGMP version, or disable the function. IGMP (Internet Group Multicast

Protocol) is a session-layer protocol used to establish membership in a multicast group.

The ADSL ATU-R supports both IGMP version 1 (

IGMP v1

), IGMP version 2 (

IGMP v2)

and

IGMP version 1(

IGMP v3

). Select “Disabled” to disable it.



IGMP Snoop:

Enable the IGMP Snoop function if you need.



DHCP Server:

Select

Enabled

, then you will see the screen below (shown in Figure 4-12).

The modem router will work as a DHCP Server; it becomes the default gateway for DHCP

client connected to it. DHCP stands for Dynamic Host Control Protocol. The DHCP Server

gives out IP addresses when a device is booting up and request an IP address to be logged

on to the network. That device must be set as a DHCP client to obtain the IP address

automatically. By default, the DHCP Server is enabled. The DHCP address pool contains the

range of the IP address that will automatically be assigned to the clients on the network.

Figure 4-12



Starting IP Address:

Enter the starting IP address for the DHCP server's IP assignment.

Because the default IP address for the modem router is 192.168.1.1, the default Start IP

Address is

192.168.1.100

, and the Start IP Address must be 192.168.1.100 or greater,

but smaller than 192.168.1.254.



IP Pool Count:

The max user pool size.



Lease Time:

The length of time for the IP lease. After the dynamic IP address has

expired, the user will be automatically assigned a new dynamic IP address. The default

is

259200

seconds.

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300Mbps Wireless N ADSL2+ Modem Router User Guide

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

Physical Ports:

If a physical port is unchecked, the client connected to that port will not

be able to obtain IP address automatically although the DHCP function is enabled. All

the ports are checked by default.



DHCP Table

: The information of the DHCP clients will be displayed here



Hostname:

Display the name of the DHCP client.



IP Address:

Display the IP Address of the DHCP client.



MAC Address:

Display the MAC Address of the DHCP client.



Status:

Display the status of the assigned IP Address, either

Static

or

Auto

.

Static

indicates that the IP Address is bounded to the MAC Address, while

Auto

indicates that

the IP Address is assigned to the MAC Address automatically.

How to assign a static IP address to the client?

1).

Select an

IP Address

from the drop-down list.

2).

Enter the

MAC Address

of the client in the table.



DNS Relay:

If you want to disable this feature, you just need to set both Primary and

secondary DNS IP to 0.0.0.0. If you want to use DNS relay, you can setup DNS server IP

to 192.168.1.1 on their Computer. If not, the device will perform as no DNS relay.



Primary DNS Server:

Type in your preferred DNS server.



Secondary DNS Server:

Type in your preferred DNS server.



Note:

If

Use Auto Discovered DNS Server Only

is selected in DNS Relay, this modem router will

accept the first received DNS assignment from one of the PPPoA, PPPoE or MER/DHCP enabled

PVC(s) during the connection establishment. If

Use User Discovered DNS Server Only

is

selected in DNS Relay, it is necessary for you to enter the primary and optional secondary DNS

server IP addresses. After type in the address, click SAVE button to save it and invoke it.



DHCP Relay:

Select

Relay

, then you will see the next screen (shown in Figure 4-13), and the

modem router will work as a DHCP Relay. A DHCP relay is a computer that forwards DHCP

data between computers that request IP addresses and the DHCP server that assigns the

addresses. Each of the device's interfaces can be configured as a DHCP relay. If it is enabled,

the DHCP requests from local PCs will forward to the DHCP server runs on WAN side. To

have this function working properly, please run on router mode only, disable the DHCP server

on the LAN port, and make sure the routing table has the correct routing entry.

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300Mbps Wireless N ADSL2+ Modem Router User Guide

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Figure 4-13



DHCP Server IP for Relay Agent:

Enter the DHCP server IP Address runs on WAN

side.



Note:

If you select

Disabled

, the DHCP function will not take effect.

4.3.3 Wireless

Choose “

Interface Setup

→

Wireless

” menu, and you will see the Wireless screen (shown in

Figure 4-14 ). Please configure the parameters for wireless according to the descriptions below.

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300Mbps Wireless N ADSL2+ Modem Router User Guide

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Figure 4-14