TD-W8901G

54Mbps Wireless ADSL2+ Modem Router User Guide

4.3

Interface Setup

Choose “

Interface Setup

”, you can see the next submenus:

Internet

,

LAN

and

Wireless

.

Figure 4-5

Click any of them, and you will be able to configure the corresponding function.

4.3.1 Internet

Choose “

Interface Setup

→

Internet

” menu, you can configure the parameters for WAN ports in

the next screen (shown in Figure 4-6).

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TD-W8901G

54Mbps Wireless ADSL2+ Modem Router User Guide

Figure 4-6

¾

ATM VC:

ATM settings are used to connect to your ISP. Your ISP provides VPI (Virtual Path

Identifier), VCI (Virtual Channel Identifier) settings to you. In this Device, you can totally setup

8 VCs on different encapsulations, if you apply 8 different virtual circuits from your ISP. You

need to activate the VC to take effect. For PVCs management, you can use ATM QoS to

setup each PVC traffic line's priority.

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TD-W8901G

54Mbps Wireless ADSL2+ Modem Router User Guide

•

Virtual Circuit:

Select the VC number you want to setup, PVC0~PVC7.

•

Status:

If you want to use a designed VC, you should activate it.

•

VPI:

Identifies the virtual path between endpoints in an ATM network. The valid range is

from 0 to 255. Please input the value provided by your ISP.

•

VCI:

Identifies the virtual channel endpoints in an ATM network. The valid range is from

32 to 65535 (1 to 31 is reserved for well-known protocols). Please input the value

provided by your ISP.

•

PVCs Summary:

Click the button, and you can view the summary information about the

PVCs.

•

QoS:

Select the Quality of Service types for this Virtual Circuit, including CBR (Constant

Bit Rate), UBR (Unspecified Bit Rate) and VBR (Variable Bit Rate). These QoS types are

all controlled by the parameters specified below, including PCR (Peak Cell Rate), SCR

(Sustained Cell Rate) and MBS (Maximum Burst Size), please configure them according

to your needs.

¾

Encapsulation:

There are four connection types: Dynamic IP Address, Static IP Address,

PPPoA/PPPoE and Bridge Mode. Please choose the designed type that you want to use.

After that, you should follow the configuration below to proceed.

1)

Dynamic IP Address

Select this option if your ISP provides you an IP address automatically. This option is typically

used for Cable services. Please enter the Dynamic IP information accordingly.

Figure 4-7

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TD-W8901G

54Mbps Wireless ADSL2+ Modem Router User Guide

¾

Encapsulation:

Select the encapsulation mode for the Dynamic IP Address, you can leave it

default.

¾

NAT:

Select this option to Enable/Disable the NAT (Network Address Translation) function for

this VC. The NAT function can be activated or deactivated per PVC basis.

¾

Default Route:

If enable this function, the current PVC will be considered as the default

gateway to internet from this device.

¾

TCP MTU Option:

Enter the TCP MTU as your desire.

¾

Dynamic Route:

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

for WAN 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 Router will periodically send routing information and

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

IN only

means

the ADLS router will only accept but will not send RIP packet.

OUT only

means the ADLS

router will only send but will not accept RIP packet.

¾

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

) and

IGMP v2

. Select “Disabled” to

disable it.

2)

Static IP Address

Select this option if your ISP provides static IP information to you. You should set static IP address,

IP subnet mask, and gateway address in the screen below (shown in Figure 4-8).

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TD-W8901G

54Mbps Wireless ADSL2+ Modem Router User Guide

Figure 4-8

)

Note:

Each IP address entered in the fields must be in the appropriate IP form, which is four IP octets

separated by a dot (x.x.x.x), such as 192.168.1.100. The Router will not accept the IP address if it

is not in this format.

3)

PPPoA/PPPoE

Select this option if your ISP requires you to use a PPPoE connection. This option is typically used

for DSL services. Select Dynamic PPPoE to obtain an IP address automatically for your PPPoE

connection. Select Static PPPoE to use a static IP address for your PPPoE connection. Please

enter the information accordingly.

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