ADSL2+ Router User’s Guide

4-9

5.

NAT

should remain enabled. If you disable NAT, you not be able to use more than one computer for

Internet connections. NAT is enabled and disabled system-wide, therefore if you are using multiple

virtual connections, NAT will disabled on all connections.

6. The

Firewall

should remain enabled for most users. If you choose to disable this you will not be able to

use the features configured in the Firewall and Filters menus located in the Advanced directory. See

the next chapter for more details on these menus.

7. Most users will not need to change

ATM

settings. If this is the first time you are setting up the ADSL

connection it is recommended that you leave the

Service Category

settings at the default values until

you have established the connection. See the table on page

!

.

for a description

of the parameters available for ATM traffic shaping.

8. When you are satisfied that all the WAN settings are configured correctly, click on the

Apply

button.

Additional settings for Dynamic IP Address connections:

Dynamic IP

Address

Parameters

Description

Connection

Type

This specifies the connection type and encapsulation method used for your Dynamic IP

Address connection. The options available are

Bridged IP LLC

or

Bridged IP VC-MUX

.

Default

Route

Enabled/Disabled

−

this sets the router as the default route between the PCs on your LAN

and the WAN (Internet). This should normally be enabled.

NAT

Enabled/Disabled

−

this enables or disables NAT (Network Address Translation) on the

router.

This should normally be enabled.

IGMP

Enabled/Disabled

−

this enables or disables IGMP (Internet Group Management Protocol) on

the router.

This should normally be enabled.

Downloaded from

www.Manualslib.com

manuals search engine

C2-010 / C2-010-I ADSL2+ Router User’s Guide

4.2.4

PPPoE and PPPoA Connection for WAN

Follow the instructions below to configure the Router to use a PPPoE or PPPoA for the Internet

connection. Make sure you have all the necessary information before you configure the WAN connection.

Figure 4-7 WAN Settings Menu – PPPoE/PPPoA

1. Under the

ATM Interface

settings at the top of the menu (including

VPI

,

VCI

, and

Virtual Circuit

) should

not be changed unless you have been instructed to change them. However, if you are instructed to change

the

VPI

or

VCI

values, type in the values assigned for your account. Leave the

ATM Interface

and

Virtual

Circuit

setting at the default (

Pcv0

and

Enabled

) values for now. This can be used later if you are

configuring multiple virtual circuits for your ADSL service.

2. Under the

PPPoE/PPPoA

heading, type the

User Name

and

Password

used for your ADSL account. A

typical User Name will be in the form [email protected], the Password may be assigned to you by your

ISP or you may have selected it when you set up the account with your ISP.

3. Choose the

Connection Type

from the pull-down menu located under the User Name and Password entry

fields. This defines both the connection protocol and encapsulation method used for your ADSL service.

The available options are

PPPoA VC-MUX, PPPoA LLC

and

PPPoE LLC.

If have not been provided

specific information for the Connection Type setting, leave the default setting.

4. Leave the

MTU

value at the default setting (default = 1400) unless you have specific reasons to change

this (see table below).

5. Leave the

MRU

value at the default setting (default = 1492) unless you have specific reasons to change

this (see table below).

6. Leave the

Default Route

enabled if you want to use the Router as the default route to the Internet for your

LAN. Whenever a computer on the LAN attempts to access the Internet, the Router becomes the Internet

gateway to the computer. If you have an alternative route for Internet traffic you may disable this without

effecting the Router’s connection.

4-10

Downloaded from

www.Manualslib.com

manuals search engine

ADSL2+ Router User’s Guide

4-11

7.

NAT

should remain enabled. If you disable NAT, you not be able to use more than one computer for

Internet connections. NAT is enabled and disabled system-wide, therefore if you are using multiple virtual

connections, NAT will disabled on all connections.

8. The

Firewall

should remain enabled for most users. If you choose to disable this you will not be able to

use the features configured in the Firewall and Filters menus located in the Advanced directory. See the

next chapter for more details on these menus.

9. Typically the globally IP settings (i.e. IP address for the WAN interface) for a PPPoA or PPPoA connection

will use Dynamic IP assignment from the ISP.

Some accounts may be assigned a specific global IP

address. If you have been give an IP address for you PPPoE/PPPoA connection, select the

Static IP

option from the

IP Control

pull-down menu. This menu can be used to configure the WAN port as an

Unnumbered IP interface. (See table below for Unnumbered IP)

10.

Most users will not need to change

ATM

settings. If this is the first time you are setting up the ADSL

connection it is recommended that you leave the

Service Category

settings at the default values until

you have established the connection. See the table on page

!

.

for a description of

the parameters available for ATM traffic shaping.

11.

When you are satisfied that all the WAN settings are configured correctly, click on the

Apply

button.

PPPoE/PPPoA

Parameters

Description

User Name

For PPP connections, a User Name and Password are used to identify and verify your

account to the ISP. Enter the User Name for your ADSL service account. User names and

passwords are case-sensitive, so enter this information exactly as given to you by your

ISP.

Password

Together with the User Name, this is used to verify your account to the ISP. Enter the

Password exactly as given to you by your ISP.

Connection

Type

This specifies the protocol (PPPoE or PPPoA) and the encapsulation method (LLC or

VC-MUX) used for your connection. The options available are

PPPoE LLC

,

PPPoA LLC

or

PPPoA VC-MUX

.

MRU

Maximum Received Unit size for downloading data. Most users will be happy with the

default setting (1492 bytes). However this may also be optimized for fast downloads of

general bulk Internet traffic, for low latency or for downloading to computers on the

Wireless LAN. As with the MTU setting, the user should carefully consider how changing

the MRU may effect Internet downloads for all systems on your LAN.

Authentication

This allows you to choose the protocol the router will use to communicate your Username

and Password for your Internet account.

PAP

and

CHAP

are both supported.

Your ISP

should provide you with the correct choice.

Obtain DNS

Automatically

This allows you to specify if the router will use the DNS server address supplied by your

ISP or if it will use a DNS server address you supply under the

DNS

directory.

Default Route

When this is enabled, the Router will be considered to be the primary gateway to the

Internet and WAN for systems on your network. If you are using the Router on a network

with one or more alternative gateway routers, you may prefer to disable this if you will use

another router as the primary gateway.

NAT

Network Address Translation may be enabled or disabled with the pull-down menu. Keep

in mind that disabling NAT allows on a single computer to be used for Internet access

through the Router. NAT is enabled and disable for the Router on all connections (i.e.

Pvc0 – Pvc7) if your Router is set up for multiple virtual connections.

IGMP

Enabled/Disabled

−

this enables or disables IGMP (Internet Group Management

Protocol) on the router.

This should normally be enabled.

Downloaded from

www.Manualslib.com

manuals search engine

C2-010 / C2-010-I ADSL2+ Router User’s Guide

4-12

4.3 DHCP Configuration

To display the

DHCP Server

menu, click the

DHCP

button in the

Home

directory. Active DHCP Clients

appear listed in the

DHCP Client Table

below the configuration menu. Information about DHCP clients

includes the IP address, MAC address, host name and lease time are displayed in the list.

Figure 4-8. Configure DHCP server settings for the LAN

The three options for DHCP service are as follows:

You may use the ADSL2+ Router as a DHCP server for your LAN.

You can disable DHCP service and manually configure IP

settings

for all workstations.

You will use a DHCP service provided by your ISP, in which case DHCP should be disabled on the

ADSL2+ Router.

4.3.1 DHCP Server Settings for the LAN

The default setting of ADSL2+ Router 's DHCP server is disabled. While you click to select the

Enabled

radio button under the

DHCP Server

option, the device will become the default gateway for DHCP clients

that connected to it. When the ADSL2+ Router is used for DHCP it becomes the default gateway for DHCP

client connected to it. Keep in mind that if you change the IP address of the ADSL2+ Router, you must

change the range of IP addresses in the pool used for DHCP on the LAN.

4.3.2 Use the ADSL2+ Router for DHCP

To use the built-in DHCP server, click to select the

DHCP Server

option if it is not already selected. The

IP Address Pool settings can be adjusted so that up to 253IP addresses are available for use. The

Starting

IP Address

is the lowest available IP address (default = 192.168.1.2). If you change the IP address of the

ADSL2+ Router this will change automatically to be 1 more that the IP address of the ADSL2+ Router. The

Ending IP Address

is the highest IP address number in the pool (default = 192.168.1.33). Select the

Lease

Time

from the pull-down menu. This is the amount of time that a workstation is allowed to reserve an IP

address in the pool if the workstation is disconnected from the network or powered off. Lease time options

vary from 1 hour to 1 week. DHCP client workstations on your LAN must be properly configured to use

DHCP service. Be sure to save the new settings.

Downloaded from

www.Manualslib.com

manuals search engine

ADSL2+ Router User’s Guide

4.3.3 Disabling the DHCP Server

To disable DHCP, click to select the

No DHCP

radio button and click on the

Apply

button.

4-13

4.4 DNS Server Setting

The ADSL2+ Router is configured by default to forward the DNS server address you enter in the DNS

page, shown below, to all DHCP clients on your LAN. When DNS is enabled, the DNS clients on the LAN

will automatically get DNS settings relayed from the ADSL2+ Router as they are entered here. Alternatively, if

DNS Status

is disabled, workstations must be configured to initiate DNS requests for each session, and

therefore you must configure DNS settings for the workstations.

Figure 4-9. Configure DNS IP address

Usually an ISP will provide you with one or two DNS server IP addresses. Enter these IP addresses in

the available entry fields for the

Primary DNS Server

and the

Secondary DNS Server

.

If you do not want to use the ADSL2+ Router as a DNS proxy agent, change the

DNS Status

to

Disabled

.

When you have configured the DNS settings as desired, click the

Apply

button. Be sure to save the

settings.

4.5

Configuring the LAN Connection

The first step in configuring your LAN is to determine the IP address scheme that the computers on your

LAN will use.

The 192.168.1.x (where x can range from 2 to 254) IP address range has been dedicated for

home and small office use.

The ADSL2+ Router ADSL router is configured with a default IP address of

192.168.1.1, and a subnet mask of 255.255.255.0.

The next IP address available for use on a LAN is

192.168.1.2.

This is why the IP address range begins with an x = 2, because when x = 1, that identifies the

ADSL2+ Router on your LAN.

The IP address where x = 255 has a special meaning (it is the broadcast

address for your LAN). When you configure PCs on your LAN, the ADSL2+ Router’s IP address

(192.168.1.1) will become the Default Gateway IP address for all PCs on your LAN.

You can configure the ADSL2+ Router’s LAN IP address to any IP addressing scheme that meets the

needs of your LAN.

Many users will find it convenient to use the default settings together with the DHCP

service to manage the IP settings for their LANs. The IP address of the ADSL2+ Router is the base address

used for DHCP. In order to use the ADSL2+ Router for DHCP on your LAN, the IP address pool used for

DHCP must be compatible with the IP address of the ADSL2+ Router. The IP addresses available in the

DHCP IP address pool will change automatically if you change the IP address of the ADSL2+ Router. See

the next section for information on DHCP setup, as described below.

Downloaded from

www.Manualslib.com

manuals search engine