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End Address

is set to

192.168.1.47

.

DHCP Lease Time (if

DHCP is enabled)

Displays the DHCP lease time in days/hours/minutes/seconds. This is the amount of

time the provided addresses will be valid, after which the DHCP client will usually

re-submit a request. DHCP Lease Time must be greater than 10 seconds (seconds

must be between 0 and 59; minutes must be between 0 and 59; and hours must be

between 0 and 23). By default,

DHCP Lease Time

is set to

01:00:00:00

.

13.3.3

Private LAN

The following screen will appear if you select

Advanced > LAN > Private LAN

from the main menu. This screen

contains the settings that allow you to control how your modem interacts with local devices connected to the

modem. It is recommended that these settings not be changed. If you change the settings in this screen, click

save

and then

OK

. If you click

reset

or

Cancel

, the screen will return to its previous settings.

IMPORTANT:

Whenever you change the Private LAN settings, the screen will display the changes; however, you

must click

save

to allow the changes to take effect in the modem.

Private LAN DHCP Server Enable

Click this check box to enable the Private LAN DHCP Server feature.

DHCP is an Internet standard that allows the modem to automatically

assign IP addresses to devices connected on the LAN. It is recommended

that you enable this for the private LAN. By default,

Private LAN DHCP

Server Enable

is enabled (checked).

Private LAN Enable

Click this check box to enable the Private LAN feature. This setting

enables the addresses from the Private LAN to use the NAT interface.

Westell recommends that you leave this feature enabled. By default,

Private LAN Enable

is enabled (checked).

Modem IP Address

Displays your modem’s IP address.

Subnet Mask

Displays the Subnet Mask, which determines what portion of an IP

address is controlled by the local network and which portion is controlled

by the host.

DHCP Start Address (if DHCP is

enabled for Private LAN)

Displays the first IP address that the DHCP server will provide to assign

IP addresses to local devices.

DHCP End Address (if DHCP is

enabled for Private LAN)

Displays the last IP address that the DHCP server will provide for

automatic configuration of local devices.

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DHCP Lease Time (if DHCP is

enabled for Private LAN)

Displays the DHCP lease time in days/hours/minutes/seconds. This is the

amount of time the provided addresses will be valid, after which the

DHCP client will usually re-submit a request. DHCP Lease Time must be

greater than 10 seconds (seconds must be between 0 and 59; minutes must

be between 0 and 59; and hours must be between 0 and 23). By default,

the

DHCP Lease Time

is set to

01:00:00:00

.

If the settings typed in the

Private LAN Configuration

screen are incorrect, the following warning messages may

be displayed in pop-up screens. If this occurs, check the settings in the

Private LAN Configuration

screen.

Warning Message

Check

Private LAN DHCP Settings

fields.

Start Address is not part of the Subnet

Check the value in the

DHCP Start Address

field.

End Address is not part of the Subnet

Check the value in the

DHCP End Address

field.

End Address is below the Start Address

Check the value in the

DHCP End Address

field.

Lease time must be greater than 10 seconds

Check the values in the

DHCP Lease Time

fields.

Seconds must be between 0 and 59

Check the

Seconds

value in the

DHCP Lease Time

field.

Minutes must be between 0 and 59

Check the

Minutes

value in the

DHCP Lease Time

field.

Hours must be between 0 and 23

Check the

Hours

value in the DHCP

Lease Time

field.

13.3.4

Public LAN

The following screen will appear if you select

Advanced > LAN > Public LAN

from the main menu. This screen

contains the settings for determining how your modem will interact with the local devices connected to it. It is

recommended that these settings not be changed. This feature is mutually exclusive with the VLAN feature. If you

change the settings in this screen, click

apply

and then

OK

. If you click

reset

or

Cancel

, the screen will return to its

previous settings.

Public LAN allows the modem to issue DHCP addresses from its Public LAN IP address pool. IP addresses served

from the Public LAN pool bypass the NAT interface and are accessible from the WAN, allowing your computer to

have global address ability. To use the Public LAN feature, your ISP must support Multiple IP Address Passthrough.

NOTE:

1. By enabling the DHCP server for Public LAN, you automatically disable the DHCP Server for Private LAN. By

default, the modem’s Public LAN DHCP server is disabled, and the Private LAN DHCP server is enabled.

Whenever the Public LAN DHCP server is disabled, the modem will not issue public LAN IP addresses to

devices on your network.

2. Public LAN IP addresses are provided by your ISP. If you have questions about this feature, contact your ISP for

details.

3. By default, the Public LAN DHCP server is disabled. It is recommended that these settings not be changed unless

you are instructed to do so by your ISP.

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Public LAN DHCP Server Enable

Click this check box to enable the Public LAN DHCP Server feature.

DHCP is an Internet standard that allows the modem to automatically

assign IP addresses to devices connected on the LAN. It is recommended

that you enable this for the public LAN. By default,

Public LAN DHCP

Server Enable

is enabled (checked).

Public LAN Enable

Click this check box to enable the Public LAN feature. This setting

enables the Public interface, which allows for a global subnet to exist

behind your modem. Westell recommends that you leave this feature

enabled. By default,

Public LAN Enable

is enabled (checked).

Public LAN IP Address

Displays your modem’s IP address.

Public LAN Subnet Mask

Displays the Public LAN Subnet Mask that is used to determine if an IP

address belongs to your local network.

DHCP Start Address (if DHCP is

enabled for Public LAN)

Displays the first IP address that the DHCP server will provide to assign

IP addresses to local devices.

DHCP End Address (if DHCP is

enabled for Public LAN)

Displays the last IP address that the DHCP server will provide for

automatic configuration of local devices.

DHCP Lease Time (if DHCP is

enabled for Public LAN)

Displays the DHCP lease time in days/hours/minutes/seconds. This is the

amount of time the provided addresses will be valid, after which the

DHCP client will usually re-submit a request. DHCP Lease Time must be

greater than 10 seconds (seconds must be between 0 and 59; minutes must

be between 0 and 59; and hours must be between 0 and 23). By default,

DHCP Lease Time

is set to

01:00:00:00

.

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13.4

WAN (Wide Area Network)

This section discusses the

WAN

(Wide Area Network) screens (Connection Overview, ATM Loopback, VCs, WAN

Detection, QoS, Routes, and Dynamic DNS) of your modem and guides you through the configurable settings.

13.4.1

Connection Overview

The following screen will appear if you select

Advanced > WAN > Connection Setup

from the main menu. Please

refer to section 7, “Accessing Your Modem,” for detailed information on using this screen.

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13.4.2

ATM Loopback

The following screen will appear if you select

Advanced > WAN > ATM Loopback

from the main menu.

This

setting enables an ATM cell loopback on VPI/VCI 0/21. It is recommended that this setting not be changed. If you

change the settings in this screen, click

set

and then

OK

. If you click

reset

or

Cancel

, the screen will return to its

previous settings.

Enable ATM 0/21 Loopback:

Click the

Enable ATM 0/21 Loopback

check box to enable this feature. By

default,

Enable ATM 0/21 Loopback

is enabled (checked).

13.4.3

VCs

The following screen will appear if you select

Advanced > WAN > VCs

from the main menu. A VC (Virtual

Connection) identifies a connection through the ISP’s ATM network to your ISP. This screen is an advanced screen.

Modifying parameters identified on this screen can cause severe disruption of your service. It is recommended that

nothing be changed on this screen unless explicitly instructed by your ISP.