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Field Name

Description

Secondary

DNS

(static IP

only)

Manual entry is required. Your ISP will provide the

information for you to enter into this field.

MTU Size

Sets the size of the maximum transmission unit (MTU) for the

network interface. The default value is 0 (zero)

Important:

Do not change this value unless you are an

experienced user.

Function Keys

The following function keys appear on the Setup Basic Settings - Network

Configuration page.

Key

Description

Renew WAN

IP Address

Lease

Forces a release and renewal of your WAN IP address

Apply

Saves the values you enter into the fields without closing the

screen

Configuring and Managing IP Addresses

Use the Setup Basic Settings - IP Management page to configure how your system

manages and assigns IP addresses in your network.

Note:

If you are not familiar with the IP management procedures detailed in this

section, contact your service provider before you attempt to change any of the

residential gateway default IP management settings.

Click

LAN IP Address Management

in the Basic Settings section of the Setup page

to access the Setup Basic Settings - IP Management page.

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Setup Basic Settings - IP Management Page Example

The following illustration is an example of the Setup Basic Settings - IP Management

page.

Setup Basic Settings - IP Management Page Description

The following tables provide a description of the fields within the Setup Basic

Settings - IP Management page.

Field Name

Description

DHCP Server

Allows you to enable or disable the DHCP server

in the residential gateway

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Field Name

Description

Starting Local Address

Displays the starting address used by the built-in

DHCP server to distribute Private LAN IP

addresses. In the example shown, addresses

between 2 and 9 can be used for devices on your

Private LAN that require fixed IP addresses such

as printers or a device assigned as a DMZ host

Note:

The LAN IP address ending in 1 is reserved

for the internal gateway server. The LAN IP

address ending in 255 is also reserved and should

not be used for CPE devices

Number of CPEs

Enter the maximum number of devices allowed to

connect to the Private LAN.

Note:

The Factory Default is 245. The maximum

number of devices is 253. This is the combined

total of addresses reserved for static IP addresses,

for example, the sum of the IP addresses between

2 and the value entered in the Starting Local

Address field and the value entered in the

Number of CPEs field.

Note:

The sum of the value entered in the Starting

Local Address field and the value entered in the

Number of CPEs field must always be 255 or less.

DHCP Client Lease Info

Displays the MAC address, IP Address, Subnet

Mask, Duration and Expiration date of all devices

issued an IP address by the built-in DHCP server.

This field also displays the current system time

and date

WINS Addresses

Allows you to manually enter Windows Internet

Name Server (WINS) server addresses

Function Keys

The following function keys appear on the Basic Settings - IP Management page.

Key

Description

Apply

Saves the values you enter into the fields without

closing the screen

Force Available

Forces the release of an IP address for you to

re-use

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Reserving IP Addresses

Use the Setup Basic Settings - Fixed CPE IP Assignment page to reserve IP

addresses. This feature allows you to assign a fixed IP address to any device in your

network by setting static IP addresses in your PC or other network device.

These addresses will be removed from the pool of the IP addresses to be used by

your gateway's DHCP server when issuing IP addresses to devices that are

connected to your local network.

Reserving IP addresses is useful in making sure that there are no IP address conflicts

on the network, for example, two devices using the same IP address. Another

example: when using DMZ Host, the IP address for the DMZ Host should always

have the same IP address.

Note:

If you are not familiar with the Fixed CPE IP Assignment procedures detailed

in this section, contact your service provider before you attempt to change any of the

residential gateway default Fixed CPE IP Assignment settings.

Click

Fixed CPE IP Assignment

in the Basic Settings section of the Setup page to

access the Setup Basic Settings - Fixed CPE IP Assignment page.

Setup Basic Settings - Fixed CPE IP Assignment Page

The following illustration is an example of the Setup Basic Settings - Fixed CPE IP

Assignment page.

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Setup Basic Settings - Fixed CPE IP Assignment Page Description

The following tables provide a description of the fields within the Setup Basic

Settings - Fixed CPE IP Assignment page.

Field Name

Description

MAC Address

The MAC address of the PC or device (for example, a

printer) for which you want to reserve a specific IP

address on the network

Assign to IP

The IP address you assign to the PC or device for which

you want to reserve a specific IP address on the network.

Only MAC addresses within the range of the gateway's

DHCP address pool can be reserved with this feature.

Note:

The factory configuration of your gateway sets

aside IP addresses 192.168.0.2 through 192.168.0.9 for

static IP addresses.

Function Keys

Key

Description

Add Static IP

Adds the Static IP address to the list of assigned IP

addresses

Remove Static IP

Removes the Static IP address from the list of assigned IP

addresses

Restarting the Gateway Modem

Use the Setup Basic Settings - Restart Cable Modem page to restart your cable

modem.

1

Click

Restart Modem

in the Basic Settings section of the Setup page to access the

Basic Settings - Restart Cable Modem page.

2

Click

Reboot Cable Modem

to restart the gateway modem.

Note:

Restarting your gateway modem does not reset any of the settings.