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Chapter 4: Configuration

40

DHCP Server

You can disable or enable the DHCP (Dynamic Host Configuration Protocol) server or enable the router’s

DHCP relay functions. The DHCP protocol allows your router to dynamically assign IP addresses to PCs

on your network if they are configured to obtain IP addresses automatically.

To disable the router’s DHCP Server, check

Disabled

and click

Next,

then click

Apply.

When the DHCP

Server is disabled you will need to manually assign a fixed IP address to each PCs on your network, and

set the default gateway for each PCs to the IP address of the router (by default this is 192.168.1.254).

To configure the router’s DHCP Server, check

DHCP Server

and

click

Next

. You can then configure

parameters of the DHCP Server including the IP pool (starting IP address and ending IP address to be

allocated to PCs on your network), lease time for each assigned IP address (the period of time the IP

address assigned will be valid), DNS IP address and the gateway IP address. These details are sent to

the DHCP client (i.e. your PC) when it requests an IP address from the DHCP server. Click

Apply

to

enable this function. If you check “

Use Router as a DNS Server

”, the ADSL Router will perform the

domain name lookup, find the IP address from the outside network automatically and forward it back to

the requesting PC in the LAN (your Local Area Network).

If you check

DHCP Relay Agent

and click

Next

, then you will have to enter the IP address of the DHCP

server which will assign an IP address back to the DHCP client in the LAN. Use this function only if

advised to do so by your network administrator or ISP.

Click

Apply

to enable this function.

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WAN - Wide Area Network

WAN refers to your Wide Area Network connection, i.e. your router’s connection to your ISP and the

Internet. Here are the items within the

WAN

section:

ISP

,

DNS

and

ADSL

.

ISP

The factory default is PPPoE. If your ISP uses this access protocol, click

Edit

to input other parameters

as below. If your ISP does not use PPPoE, you can change the default WAN connection entry by clicking

Change

.

Some of ISP may provide more service via different WAN connection. In case, you can create more

connections by clicking

Create

. The device can support maximum up to 8 WAN connections.

Note:

The application of multiple WAN connections is depend on your Service Provider.

A simpler alternative is to select

Quick Start

from the main menu on the left. Please see the Quick Start

section of the manual for more information.

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RFC 1483 Routed Connections

Description:

User-definable name for the connection.

VPI and VCI:

Enter the information provided by your ISP.

ATM Class:

The Quality of Service for ATM layer.

NAT:

The NAT (Network Address Translation) feature allows multiple users to access the Internet through

a single IP account, sharing the single IP address. If users on your LAN have public IP addresses and

can access the Internet directly, the NAT function can be disabled.

Encapsulation method:

Selects the encapsulation format, the default is LLC Bridged. Select the one

provided by your ISP.

IP Assignment

~

Obtain an IP address automatically via DHCP client:

specify if the Router can get an IP

address from the ISP (Internet Service Provider) automatically.

~

Use the following IP Address:

Specify the IP address manually; the IP should be given by you

our ISP.

RIP:

RIP v1, RIP v2, and RIP v2 Multicast. Check to enable RIP function.

MTU:

Maximum Transmission Unit. The size of the largest datagram (excluding media-specific headers)

that IP will attempt to send through the interface.

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RFC 1483 Bridged Connections

Description:

User-definable name for the connection.

VPI and VCI:

Enter the information provided by your ISP.

ATM Class:

The Quality of Service for ATM layer.

Encapsulation method:

Select the encapsulation format, this is provided by your ISP.

Acceptable Frame Type:

Specify what kind of traffic can through this connection, all traffic or only VLAN

tagged.

Filter Type:

Specify the type of ethernet filtering performed by the named bridge interface.

All

Allows all types of ethernet packets through the port.

Ip

Allows only IP/ARP types of ethernet packets through the port.

Pppoe

Allows only PPPoE types of ethernet packets through the port.

PVID for Untagged Frames:

PVID is known as Port VLAN Identifier. When an untagged packet is

received by input port(s), this packet will be tagged with specified PVID. The valid value range for PVID is

1~4094.

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PPPoA Routed Connections

Description:

User-definable name for the connection.

VPI/VCI:

Enter the information provided by your ISP.

ATM Class:

The Quality of Service for ATM layer.

NAT:

The NAT (Network Address Translation) feature allows multiple users to access the Internet through

a single IP account, sharing a single IP address. If users on your LAN have public IP addresses and can

access the Internet directly, the NAT function can be disabled.

Username:

Enter the username provided by your ISP. You can input up to

128

alphanumeric characters

(case sensitive). This will usually be in the format of “username@ispname” instead of simply “username”.

Password:

Enter the password provided by your ISP. You can input up to

128

alphanumeric characters

(case sensitive).

IP Address:

Specify an IP address allowed to logon and access the router’s web server..

Note:

IP 0.0.0.0 indicates all users who are connected to this router are allowed to logon the device and modify

data.

Authentication Protocol Type:

Default is Chap (Auto). Your ISP will advise you whether to use

Chap or

Pap.

Connection:

~

Always on:

If you want the router to establish a PPPoA session when starting up and to

automatically re-establish the PPPoA session when disconnected by the ISP.

~

Connect on Demand:

If you want to establish a PPPoA session only when there is a packet

requesting access to the Internet (i.e. when a program on your computer attempts to access the

Internet).

Idle Timeout:

Auto-disconnect the broadband firewall gateway when there is no activity on the line for a

predetermined period of time.