Reference Manual for the Model DM602 ADSL Modem

5-6

Advanced Configuration of the Modem

Click on the “Show Statistics” button to display modem usage statistics, as shown in

Figure 5-5

below:

Figure 5-5.

Show Statistics screen

This screen shows the following statistics:.

Modem

These parameters apply to the ADSL modem section of the modem.

ADSL Firmware Version

This field displays the ADSL chipset firmware version.

Modem Status

This field displays the state of the ADSL connection to your service

provider, either “Connecting” or “Connected”

Connect Mode

This field displays the protocol used to connect to your service provider.

When the ADSL link comes up, the connection will be either “Fast” or

“Interleaved”, depending on the way the telephone company has

configured its equipment

Down Stream

This field displays the connection rate from the service provider to the

modem in bits per second

Up Stream

This field displays the connection rate from the modem to the service

provider in bits per second

VPI

This field displays the VPI entered in the Setup Wizard or Basic Settings

screen

VCI

This field displays the VCI entered in the Setup Wizard or Basic Settings

screen

Table 5-4.

Modem Statistics Fields

Field

Description

Port

The statistics for the ADSL WAN (Internet) and LAN (local) ports.

Status

The link status of the port.

Table 5-3.

Router Status Fields

Field

Description

Reference Manual for the Model DM602 ADSL Modem

Advanced Configuration of the Modem

5-7

LAN IP Setup

The LAN IP Setup menu allows configuration of LAN IP services such as DHCP. From the Main

Menu of the browser interface, under Advanced, click on LAN IP Setup to view the LAN IP Setup

menu, shown in

Figure 5-6

Figure 5-6.

LAN IP Setup Menu

The modem is shipped preconfigured to use private IP addresses on the LAN side, and to act as a

DHCP server. The modem’s default LAN IP configuration is:

•

LAN IP addresses—192.168.0.1

•

Subnet mask—255.255.255.0

These addresses are part of the IETF-designated private address range for use in private networks,

and should be suitable in most applications. If your network has a requirement to use a different IP

addressing scheme, you can make those changes in this menu.

TxPkts

The number of packets transmitted on this port since reset or manual clear.

RxPkts

The number of packets received on this port since reset or manual clear.

Poll Interval

Specifies the intervals at which the statistics are updated in this window. Click on Stop

to freeze the display.

Note:

If you change the LAN IP address of the modem while connected through the

browser, you will be disconnected. You must then open a new connection to the new IP

address and log in again.

Table 5-4.

Modem Statistics Fields (continued)

Field

Description

Reference Manual for the Model DM602 ADSL Modem

5-8

Advanced Configuration of the Modem

Changing the Modem Access Password

The default user name is

admin

and the password for the modem’s Web Configuration Manager is

password

. Netgear recommends that you change this user name and password to a more secure

combination.

From the Main Menu of the browser interface, under the Maintenance heading, select Set

Password to bring up the menu shown in

Figure 5-7

.

Figure 5-7.

Set Password menu

To change the password, first enter the old password, and then enter the new password twice. Click

Apply.

Firmware Upgrade

The software of the DM602 modem is stored in FLASH memory, and can be upgraded as new

software is released by NETGEAR. Upgrade files can be downloaded from Netgear's website. If

the upgrade file is compressed (.ZIP file), you must first extract the binary (.BIN) file before

sending it to the modem. The upgrade file can be sent to the modem using your browser.

Note:

The Web browser used to upload new firmware into the DM602 modem must

support HTTP uploads. NETGEAR recommends using Microsoft Internet Explorer 4 or

Netscape Navigator 4.0 or above.

Reference Manual for the Model DM602 ADSL Modem

Advanced Configuration of the Modem

5-9

From the Main Menu of the browser interface, under the Maintenance heading, select the

Firmware Upgrade heading to display the menu shown in

Figure 5-8

.

Figure 5-8.

Firmware Upgrade menu

To upload new firmware:

1.

Download and unzip the new software file from NETGEAR.

2.

In the Firmware Upgrade menu, click the Browse button and browse to the location of the

binary (.BIN) upgrade file

3.

Click Upload.

Note:

When uploading software to the DM602 modem, it is important not to interrupt the Web

browser by closing the window, clicking a link, or loading a new page. If the browser is

interrupted, it may corrupt the software. When the upload is complete, your modem will

automatically restart. The upgrade process will typically take about one minute.

In some cases, you may need to reconfigure the modem after upgrading.

DMZ

Incoming traffic from the Internet is normally discarded by the modem unless the traffic is a

response to one of your local computers or a service that you have configured in the Port

Forwarding menu. Instead of discarding this traffic, you can have it forwarded to one computer on

your network. This computer is called the Default DMZ Server.

The Default DMZ Server feature is helpful when using some online games and videoconferencing

applications that are incompatible with NAT. The modem is programmed to recognize some of

these applications and to work properly with them, but there are other applications that may not

function well. In some cases, one local PC can run the application properly if that PC’s IP address

is entered as the Default DMZ Server.

Reference Manual for the Model DM602 ADSL Modem

5-10

Advanced Configuration of the Modem

The Security menu, shown in

Figure 5-9

, allows the configuration of a Default DMZ Server.

Figure 5-9.

DMZ menu.

To assign a computer or server to be a Default DMZ server:

1.

Check the check box to enable the DMZ feature

2.

Type the IP address for that server.

3.

Click Apply.

Device Mode

The modem includes a limited feature router to make the process of configuring your connection

easier and more secure. You can change the operation of the modem from Modem Device Mode to

Router Device Mode.

In Modem Device Mode, the modem operates like a DSL modem, passing all the Internet

communications directly to your computer where you must then configure your settings and logon

settings as needed.

Note:

For security, you should avoid using the DMZ Server feature. When a computer

is designated as the Default DMZ Server, it loses much of the protection of the modem,

and is exposed to many exploits from the Internet.

Note:

If you need to delete the IP address of the DMZ server, you must enter 0.0.0.0 as

the address, and then click the Apply button.