NetComm NB4 User Manual

Contents

Introduction ................................................................................................................................ 4

Do I need a Micro filter? .............................................................................................................. 5

Package Contents ....................................................................................................................... 6

Quick Start.................................................................................................................................. 7

Step 1 - Hardware Installation .............................................................................................. 8

Step 2 - Modem Configuration .............................................................................................. 9

Step 3 - Computer Hardware Configuration ......................................................................... 11

Windows® XP PCs ......................................................................................................... 11

Windows 2000 PCs ........................................................................................................ 11

Windows ME PCs ........................................................................................................... 12

Windows 95, 98 PCs ...................................................................................................... 13

Mac OS 9.x .................................................................................................................... 14

Mac OS X ....................................................................................................................... 14

LED Indicators ........................................................................................................................... 15

Back Panel Ports ....................................................................................................................... 16

Resetting Factory Defaults ...................................................................................................16

Configuring Your Computer .......................................................................................................17

Configuring Your NB4 ................................................................................................................ 19

Quick Start Settings .................................................................................................................. 20

Additional Settings ................................................................................................................... 22

Setup .................................................................................................................................. 22

LAN Setup ..................................................................................................................... 23

DHCP Configuration ................................................................................................ 23

Management IP ...................................................................................................... 24

PPPoE Connection Setup .............................................................................................. 25

NAT ......................................................................................................................... 25

PPP Settings ........................................................................................................... 26

PVC Settings ........................................................................................................... 26

Static Settings......................................................................................................... 27

DHCP Settings......................................................................................................... 27

Bridge Settings ....................................................................................................... 27

CLIP Settings .......................................................................................................... 27

Advanced ............................................................................................................................ 29

Advanced Features ....................................................................................................... 30

UPnP ....................................................................................................................... 30

SNMP ....................................................................................................................... 31

LAN Clients ............................................................................................................. 32

MacFilters ............................................................................................................... 33

Enable/Disable MAC Filtering ................................................................................. 33

Create MAC Filter Rules .......................................................................................... 33

Edit or Delete MAC Filter Rules ............................................................................... 34

Hidden MAC Filter Rules ......................................................................................... 34

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Multicast ................................................................................................................. 35

Static Routing ......................................................................................................... 36

Configuring Static Routing: ..................................................................................... 36

Dynamic Routing ..................................................................................................... 37

Port Forwarding ...................................................................................................... 38

Easy Port Forwarding: Applying Pre-Defined Rules ................................................. 39

Advanced Port Forwarding: Creating Custom Rules ................................................ 39

To create a New Port Forward Rule: ........................................................................ 40

Adding Custom Rules to Applied Rules List ............................................................ 40

Access Control ......................................................................................................... 41

IP Filters .................................................................................................................. 43

DMZ Settings .......................................................................................................... 44

Tools................................................................................................................................... 45

System Commands ....................................................................................................... 46

User Management ........................................................................................................ 47

Update Firmware .......................................................................................................... 48

Ping Test .......................................................................................................................49

Modem Test .................................................................................................................. 50

Status .................................................................................................................................. 51

Network Statistics ......................................................................................................... 52

Connection Status......................................................................................................... 53

DHCP Clients ........................................................................................................... 54

Modem Status .............................................................................................................. 55

Product Information ...................................................................................................... 56

System Log ................................................................................................................... 57

Help .................................................................................................................................... 58

Firewall ......................................................................................................................... 59

Bridge Filters ................................................................................................................ 60

LAN Clients ................................................................................................................... 60

PPP Connection ............................................................................................................ 60

UPnP ............................................................................................................................. 60

Appendix A: Specification .........................................................................................................61

Appendix B: Cable Connections ............................................................................................... 63

RJ-45 Network Ports ...................................................................................................... 63

Twisted pair cables ....................................................................................................... 63

Straight and crossover cable configuration ................................................................... 64

RJ11 connector and cable .............................................................................................. 64

605 to RJ-11 adapter...................................................................................................... 65

Appendix C: Glossary .............................................................................................................. 66

Appendix D: Registering your NetComm Product .................................................................... 74

Contact Information ............................................................................................................ 74

Appendix E: Legal & Regulatory Information ........................................................................... 75

Customer Information ......................................................................................................... 75

Product Warranty ............................................................................................................... 75

Limitations of Warranty....................................................................................................... 76

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IntroductionIntroduction

Introduction

IntroductionIntroduction

Congratulations on becoming the owner of the NB4 ADSL 4-port Modem Router. Your LAN
(local area network) will now be able to access the Internet using your high-speed ADSL
connection. This User Guide will show you how to set up the NB4, and how to customize its
configuration to get the most out of your new product.

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Do I need a Micro filter?Do I need a Micro filter?

Do I need a Micro filter?

Do I need a Micro filter?Do I need a Micro filter?

Micro filters are used to prevent common telephone equipment, such as phones, answering
machines and fax machines, from interfering with your ADSL service. If your ADSL enabled
phone line is being used with any other equipment other than your ADSL Modem then you
will need to use one Micro filter for each phone device.

Splitters may be installed when your ADSL line is installed or when your current phone line is
upgraded to ADSL. If your telephone line is already split you will not need to use a Microfilter

- check with your ADSL service provider if you are unsure.

Each micro filter is connected in-line with your telephone or fax machine so that all signals
pass through it. Telephones and/or facsimiles in other rooms that are using the same exten­sion will also require Microfilters. The following diagram gives an example of connecting your
ADSL Modem/Router using a Microfilter.

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Package ContentsPackage Contents

Package Contents

Package ContentsPackage Contents

The following items should be contained in your Ethernet/USB ADSL Modem Package:

■ NB4 ADSL 4-port Modem Router

■ CD-ROM containing Manual

■ RJ45 Ethernet Cable (CAT5 UTP Straight-Through)

■ RJ11 ADSL Cable (Standard telephone cable)

■ Power Adapter

■ Quick Installation Guide and Package Contents Note

Check the contents of your package and, if any parts are missing or damaged, please contact
your Dealer.

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Quick StartQuick Start

Quick Start

Quick StartQuick Start

This Quick Start provides basic instructions for connecting the NB4 ADSL Modem Router to a
computer and to the Internet.

■ Step 1 - describes setting up the hardware.

■ Step 2- shows you how to configure basic settings on the NB4 ADSL Modem Router to get

your computer connected to the Internet.

■ Step 3 - describes how to configure Internet properties on your computer(s).

This Quick Start Guide assumes that you have already established an ADSL service with your
Internet service provider (ISP). These instructions provide a basic configuration that should be
compatible with your home or small office setup. Refer to the Advanced Features section for
additional configuration instructions.

NOTE: NetComm Technical Support for this product only covers the basic installation

and features outlined in the Quick Start section. For detailed information
regarding the advanced features of this product, please refer to the configuring
sections.

The NetComm NB4 ADSL Modem Router can be connected directly to your computer via an
Ethernet interface. If your computer has a network card (NIC) but isn’t connected to a network hub
or switch, or another computer, then connect the NB4 to the network port of your PC.

Warning:Warning:

Warning:

Warning:Warning:

Before you begin, turn the power off for all devices. These includeBefore you begin, turn the power off for all devices. These include

Before you begin, turn the power off for all devices. These include

Before you begin, turn the power off for all devices. These includeBefore you begin, turn the power off for all devices. These include
your computer(s) and the NB4 ADSL Modem Router.your computer(s) and the NB4 ADSL Modem Router.

your computer(s) and the NB4 ADSL Modem Router.

your computer(s) and the NB4 ADSL Modem Router.your computer(s) and the NB4 ADSL Modem Router.

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Step 1 - Hardware Installation

To connect your modem, follow the step by step instructions below:

1. Connecting the ADSL cable.

Connect one end of the provided phone cable to the port labeled DSL on the Rear Panel of
the device. Connect the other end to your wall phone jack.

2. Connecting the Ethernet cable.

Connect one end of the ethernet cable to the network port on your PC and the other end of
the cable to the ethernet port of the NB4 ADSL Modem Router.

3. Attach the power connector.

Connect the AC power adapter to the Power connector on the back of the device and plug
in the adapter to a wall outlet or power strip. Switch the power on to the NB4.

4. Power up your systems.

Turn on and boot up your computer.

After completing the above, refer to the appropriate operating system section to configure
your computer.

NOTE: At this stage, if your ADSL line is active the ADSL Light should stay perma-

nently ON - if it is blinking, then an ADSL Service has not been detected.

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Step 2 - Modem Configuration

In Step 2, you log directly into the configuration page of the NB4 ADSL Modem Router and
configure the basic settings for your Internet connection. Your ISP should provide you with the
necessary information to complete this step.

The settings that you most likely need to change to access the internet are grouped onto a single
Quick Configuration page.

To configure your NB4 ADSL Modem Router follow the steps below:

Note: If your computer's Ethernet interface is not set to use DHCP or you have trouble

accessing/configuring your NB4, see instructions overleaf "Computer Hardware
Configuration".

1. Insert the NetComm NB4 CD into your CD drive. The NB4 ADSL Modem Router autorun
screen will appear. Click on Configure NB4.

(Alternatively, if the CD-Rom is not available, you can open a web browser and type
http://192.168.1.1 in the location bar to access the NB4's setup screen directly.)

2. The logon page will be displayed. Enter the NB4’s username and password.

The default username is admin.
The default password is password.

Click on OK.

3. The Quick Start - login settings page will be displayed.

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4. Under the User ID heading, enter the Username that your ISP has provided. In the
password field, enter the password that your ISP has given you.

5. Leave the Protocol, VPI and VCI settings as default unless advised to change them by
your ISP.

6. Click on the Connect button to test the settings.

7. If the test was successful, then click "Save Settings". If it failed, please try again by clicking
on the "Connect" button a second time. Also, check your settings to ensure they are
correct.

8. You should now be able to access the Internet with a web browser, email client or other
Internet application.

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Step 3 - Computer Hardware Configuration

Step 3 of the Quick Start provides instructions for configuring the Internet settings on your computer
to work with the NB4. These steps are only required if you are having trouble accessing/configuring
your NB4.

Windows® XP PCs

1. In the Windows task bar, click the Start button, and then click Control Panel.

2. Click on Network & Internet Connections icon. (Category mode only).

3. Click the Network Connections icon.

4. In the LAN or High-Speed Internet window, right-click on the icon corresponding to your
network interface card (NIC) and select Properties. (Often, this icon is labeled Local Area
Connection).

5. The Local Area Connection dialog box displays with a list of currently installed network
items. Ensure that the check box to the left of the item labeled Internet Protocol (TCP/IP)
is checked. Select Internet Protocol TCP/IP and click on Properties.

6. In the Internet Protocol (TCP/IP) Properties dialog box, click the radio button labeled

Obtain an IP address automatically. Also click the radio button labeled Obtain DNS
server address automatically.

7. Click OK twice to confirm your changes, and close the Control Panel.

Windows 2000 PCs

First, check for the IP protocol and, if necessary, install it:

1. In the Windows task bar, click the Start button, point to Settings, and then click Control
Panel.

2. Double-click the Network and Dial-up Connections icon.

3. In the Network and Dial-up Connections window, right-click the Local Area Connection
icon, and then select Properties.

4. In the Local Area Connection Properties dialog box, select Internet Protocol (TCP/IP),
and then click Properties

5. In the Internet Protocol (TCP/IP) Properties dialog box, click the radio button labeled
Obtain an IP address automatically. Also click the radio button labeled Obtain DNS server
address automatically.

6. Click OK twice to confirm and save your changes, and then close the Control Panel.

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Windows ME PCs

1. In the Windows task bar, click the Start button, point to Settings, and then click Control
Panel.

2. Click on View All Control Panel Options.

3. Double-click the Network icon.

4. The Network Properties dialog box displays with a list of currently installed network
components. If the list includes Internet Protocol (TCP/IP), then the protocol has already
been enabled. Skip to step 10.

5. If Internet Protocol (TCP/IP) does not display as an installed component, click Add…

6. In the Select Network Component Type dialog box, select Protocol, and then click
Add…

7. Select Microsoft in the Manufacturers box.

8. Select Internet Protocol (TCP/IP) in the Network Protocols list, and then click OK. You
may be prompted to install files from your Windows ME installation CD or other media.
Follow the instructions to install the files. If prompted, click OK to restart your computer
with the new settings.

Next, configure the PC to accept IP information assigned by the NB4 ADSL Modem
Router:

9. Follow steps 1 – 4 above..

10. In the Network Properties dialog box, select TCP/IP, and then click Properties.
If you have multiple TCP/IP listings, select the listing associated with your network card or
adapter.

11. In the TCP/IP Settings dialog box, click the radio button labeled Obtain an IP address
automatically.

12. Click OK twice to confirm and save your changes, and then close the Control Panel.

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Windows 95, 98 PCs

First, check for the IP protocol and, if necessary, install it:

1. In the Windows task bar, click the Start button, point to Settings, and then click Control
Panel.

2. Double-click the Network icon.

3. The Network dialog box displays with a list of currently installed network components. If
the list includes TCP/IP, and then the protocol has already been enabled. Skip to step 9.

4. If TCP/IP does not display as an installed component, click Add… The Select Network
Component Type dialog box displays.

5. Select Protocol, and then click Add… The Select Network Protocol dialog box displays.

6. Click on Microsoft in the Manufacturers list box, and then click TCP/IP in the Network
Protocols list box.

7. Click OK to return to the Network dialog box, and then click OK again. You may be
prompted to install files from your Windows 95/98 installation CD. Follow the instructions
to install the files.

8. Click OK to restart the PC and complete the TCP/IP installation.

Next, configure the PCs to accept IP information assigned by the NB4 ADSL Modem
Router:

9. Follow steps 1 – 3 above.

10. Select the network component labeled TCP/IP, and then click Properties. If you have
multiple TCP/IP listings, select the listing associated with your network card or adapter.

11. In the TCP/IP Properties dialog box, click the IP Address tab.

12. Click the radio button labeled Obtain an IP address automatically.

13. Click OK twice to confirm and save your changes. You will be prompted to restart
Windows.

14. Click Yes .

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Mac OS 9.x

1. Click on the Apple in the toolbar, select Control Panels, and then click on TCP/IP.

2. Choose Connect: via Ethernet and Configure: Using DHCP Server.

3. Close the TCP/IP configuration box and save the changes.

Mac OS X

1. On the Dock, click on System Preferences.

2. Click on Network.

3. Confirm that Built in Ethernet is selected. From the TCP/IP tab select Configure: Using
DHCP. Click on Apply Now to save any changes and exit from the System Preferences.

NOTE: For Windows NT 4 Configuration instructions please refer to the NB4 User

Guide located on the CD-ROM.

For detailed information regarding the advanced features of this product,For detailed information regarding the advanced features of this product,

For detailed information regarding the advanced features of this product,

For detailed information regarding the advanced features of this product,For detailed information regarding the advanced features of this product,
please refer to the configuring sections.please refer to the configuring sections.

please refer to the configuring sections.

please refer to the configuring sections.please refer to the configuring sections.

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LED IndicatorsLED Indicators

LED Indicators

LED IndicatorsLED Indicators

The LED Indicators are located on the front of the unit, they are green in color. The meanings
are as follows:

Label Meaning Status Indicates

PWR Power On Power is on

Off Power is off

LAN 1/ LAN 2/ LAN 3/ LAN 4

LAN Link Flashing Flashes when data is being sent or received

on the LAN connection.

On Indicates a link to your LAN or Network card

is active.

Off Indicates no link to LAN

ADSL Link Link A valid ADSL connection.

Active Act An active WAN session.

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Back Panel PortsBack Panel Ports

Back Panel Ports

Back Panel PortsBack Panel Ports

RJ11 for ADSL

connection to

telephone line

ADSL Telephone jack (RJ-11) to connect to your Telephone Wall Socket (ADSL

line).

ETHERNET 4 x 10/100 Base-T Ethernet jack (RJ-45) to connect to your Ethernet

Network card or Ethernet Hub / Switch.

RESET To reset your ADSL Router to factory default settings. (All customised

settings that you have saved will be lost!)

Please refer to the section below on how to use the reset function.

DC Connect the Power Adapter that comes with your package.

4 x RJ45 Ports for

10/100 Ethernet
LAN connection

Reset

factory

defaults

Power jack for

AC power

adaptor

Resetting Factory Defaults

The restore to factory defaults feature will set the ADSL Router to its factory default configura­tion by resetting the ADSL Router. You may need to place the ADSL Router into its factory
defaults; if the configuration has changed, you lose the ability to configure the ADSL Router
via the web interface, or following a software upgrade. To reset the ADSL Router:

■ Ensure that your ADSL Router is powered on (for at least 10 seconds).

■ Use a paper clip or a pencil tip to depress the reset button for five seconds and release. At

this point, the reset is in progress. Do not power off the unit at this point.

■ When indicator lights return to steady green, reset is complete. The default settings are

now restored.

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Configuring Your ComputerConfiguring Your Computer

Configuring Your Computer

Configuring Your ComputerConfiguring Your Computer

You can use the RJ-45 cable to connect the ADSL Router.

Step 1: Move your cursor as following sequence Start \ Settings \ Control Panel and click

Control Panel. Then double-click on the Network Connections

Step 2: In the LAN or High-Speed Internet window, right-click on icon corresponding to

your network interface card (NIC) and select Properties.(This icon may be labeled
Local Area Connection).

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Step 3: In the General Tab of the Local Area Connection Properties menu. Highlight Internet

Protocol (TCP/IP) under "This connection uses the following items." by click on it
once. Click on the Properties button.

Step 4: Select Obtain an IP Address automatically: by clicking once in the circle. Click OK

button to confirm and save your changes, and the close the Control Panel.

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Configuring Your NB4Configuring Your NB4

Configuring Your NB4

Configuring Your NB4Configuring Your NB4

Step 1 Launch your PC web browser and enter the URL: http://192.168.1.1

Step 2: In the User name/Password prompt, please type in admin/password as default.

Step3: Please wait for the Home page to appear.

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Quick Start SettingsQuick Start Settings

Quick Start Settings

Quick Start SettingsQuick Start Settings

After you have configured your computer and logged directly into the configuration page of
the NB4 ADSL Modem Router you will need to complete the Quick Start section. The settings
that you most likely need to change before using the device are grouped onto a single Quick
Start page.

To configure your NB4 ADSL Modem Router follow the steps below:

1. Insert the NetComm NB4 CD into your CD drive. The NB4 ADSL Modem Router autorun
screen will appear. Click on Configure NB4.

(Alternatively, if the CD-Rom is not available, you can open a web browser and type
http://192.168.1.1 in the location bar to access the NB4's setup screen directly.)

2. The logon page will be displayed. Enter the NB4’s username and password.

The default username is admin.

The default password is password.

Click on OK.

3. The Quick Start - login settings page will be displayed.

4. Under the User ID heading, enter the Username that your ISP has provided. In the
password field, enter the password that your ISP has given you.

5. Leave the Protocol, VPI and VCI settings as default unless advised to change them by
your ISP.

6. Click on the Connect button to test the settings.

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7. If the test was successful, then click "Save Settings". If it failed, please try again by clicking
on the "Connect" button a second time.

8. You should now be able to access the Internet with a web browser, email client or other
Internet application.

Note: For detailed information regarding the advanced features of this product, please

refer to the Advanced sections in this NB4 User Guide.

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Additional SettingsAdditional Settings

Additional Settings

Additional SettingsAdditional Settings

Setup

The Setup section allows you to configure new connections as well as setup LAN and WAN
configurations.

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LAN Setup

DHCP Configuration

DHCP stands for Dynamic Host Configuration Protocol. Your NB4 has it's DHCP Server
enabled by default this means it will assign valid IP addresses to each computer connected to it
and will direct those computers to use the NB4 as the gateway to the internet. Having the
DHCP server enabled is the recommended choice.

If you disable the DHCP server in the NB4 you will need to either manually (statically) assign
IP address information to each computer or use another device/computer as DHCP server.

Note: It is not recommended that you have more than one DHCP server enabled on

your network.

Server On: Enables the DHCP server.

Start IP: Sets the start IP address of the IP address pool.

End IP: Sets the end IP address of the IP address pool.

Lease time: The lease time is the amount of time of a network user will be allowed to

connect with DHCP server. If all fields are 0, the allocated IP address will
be effective forever.

Relay On: Allow PCs on LAN to request IP from other DHCP server.

Relay IP: Sets the other DHCP server IP address.

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Management IP

The Management IP is the IP address of your NB4 on your local network. This IP address is
specified on all computers on your network as the Gateway IP address. The Management IP
address is also the IP address you type into your browser location bar to configure your NB4.

The Management IP address is usually 192.168.1.1 but you can change it to another suitable
number (e.g. 192.168.0.1 or 10.0.0.1 or 172.16.1.1) to suit any existing network devices you
already have installed. The NetMask describes how big your network is, the default

255.255.255.0 will allow for 253 computers and generally does not need to be changed unless

to suit existing network requirements.

Note: If you change your Management IP address the DHCP server in your NB4 will

automatically change the IP address range (DHCP pool) it hands out accord­ingly.

IP Address: Private IP address for connecting to a local private network (Default:

192.168.1.1).

Netmask: Netmask for the local private network (Default: 255.255.255.0).

Default Gateway: This field is optional. Enter in the IP address of the router on your

network.

Host Name: Required by some ISPs. If the ISP does not provide the Host name,

please leave it blank.

Domain Name: www.dynsns.org will provide you with a Domain Name. Enter this name

in the "Domain Name" field.

Physical Port: There are five kinds of mode for data transfer (Auto)(10/Half Du-

plex)(10/Full Duplex)(100/Half Duplex)(100/Full Duplex).

Apply: Click Apply to save the changes.

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PPPoE Connection Setup

If you click 'New Connection' or 'Connection 0' you will be prompted with the screen shown
below.

If you clicked 'New Connection' the screen will have mainly blank options which need to be
filled in. This is for manually creating a new connection account that will be used at the same
time or in place of the 'Quick Start' account (a.k.a. Connection 0).

If you clicked 'Connection 0' you will be editing the existing settings that were created during
the 'Quick Start' process.

The Connection setup page requires you to choose the correct settings to work with your
ADSL connection as specified by your ISP. The screen will add or remove non-applicable
choices as you change options. There are a few main settings you will need to confirm with
your ISP before you can complete this page, these are;

■ Type of Connection (e.g. PPPoE, PPPoA, Bridge)

■ Username & Password (usually only required for PPPoE or PPPoA types)

■ VPI & VCI (usually VPI=8 and VPI =35, Some times this can be 1 & 32)

■ Authentication (Usually AUTO will work otherwise check with your ISP)

Most other choices on this screen are personal preference and not critical to getting your
connection working.

Note: The Username & Password you need to type in here is for your ISP's account

and it will be supplied to you by your ISP.

NAT

Network Address Translation (NAT) is a method of mapping one or more IP addresses and/or
IP service ports into different specified values. Firewall is available in addition to the built-in
NAT mechanism. When working with wide area connections, the first thing you must do is to
have the handle of the connection. Once you have the handle for a Connection you must
define the PVC and protocol settings for it.

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NAT Services: Select Enable to turn on the Firewall/NAT Service.

Name: Enter the name of your ISP. This information is for identification

purposes only.

Type: There six kinds of method (PPPoE/PPPoA/Static/DHCP/Bridge/CLIP).

PPP Settings

Encapsulation: Select the method of encapsulation used by your ISP from the drop-

down list box. Choices vary depending on the mode you select in the
Mode field.

Username: Enter the username provided by your ISP.

Password: Enter the password provided by your ISP.

Idle Timeout: Idle timeout means the router will disconnect after being idle for a preset

amount of time. The default is 60 seconds. If you set the time to 0, the
ISDN connection will remain always connected to the ISP.

Keep Alive: If mode is LCP, This is the Keep Alive timer. If a reply to the LCP echo is

not received in this amount if time, the connection is dropped. The
Default is 10.

MAX Fail: Number of times the connection is tried before giving up if it can't be

connected. The Default is 10.

MRU: Maximum Receive Unit indicates the peer of PPP connection the

maximum size of the PPP information field this device can be received.
The default value is 1492 and is used in the beginning of the PPP
negotiation. In the normal negotiation, the peer will accept this MRU and
will not send packet with information field larger than this value.

PVC Settings

VPI: If instructed to change this, type in the VPI value for the initial connec-

tion (using PVC 0). Default = 0.

VCI: If instructed to change this, type in the VCI value for the initial connec-

tion (using PVC 0). Default = 0.

PCR: Divide the DSL line rate (bps) by 424 (the size of an ATM cell) to find the

Peak Cell Rate (PCR). This is the maximum rate at which the sender can
send cells.

SCR: The Sustain Cell Rate (SCR) sets the average cell rate (long-term) that

can be transmitted.

Apply: Click Apply to save the changes.

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Static Settings

Encapsulation: Select the method of encapsulation used by your ISP from the drop-

down list box. Choices vary depending on the mode you select in the
Mode field.

IP Address: Private IP address for connecting to a local private network (Default:

192.168.1.1).

Netmask: Netmask for the local private network (Default: 255.255.255.0).

Default Gateway: This field is optional. Enter in the IP address of the router on your

network.

DNS: Sets the IP address of the DNS server.

Mode: Bridged and Routed

DHCP Settings

Encapsulation: Select the method of encapsulation used by your ISP from the drop-

down list box. Choices vary depending on the mode you select in the
Mode field.

IP Address: Private IP address for connecting to a local private network (Default:

192.168.1.1).

Netmask: Netmask for the local private network (Default: 255.255.255.0).

Default Gateway: This field is optional. Enter in the IP address of the router on your

network.

Bridge Settings

Encapsulation: Select the method of encapsulation used by your ISP from the drop-

down list box. Choices vary depending on the mode you select in the
Mode field.

CLIP Settings

IP Address: Private IP address for connecting to a local private network (Default:

192.168.1.1).

Netmask: Netmask for the local private network (Default: 255.255.255.0).

ARP Server: Translating an IP address to an ATM address.

Default Gateway: This field is optional. Enter in the IP address of the router on your

network.

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ADSL Handshake

Here you can choose one of four ADSL handshake types, typically MMode (Multimode) will
work on Australian ADSL lines. You should not need to change this setting unless advised by
your ISP.

T1413: Full-Rate (ANSI T1.413 Issue 2) with line rate support of up to 8 Mbps

downstream and 832 Kbps upstream.

GDMT: Full-Rate (G.dmt, G992.1) with line rate support of up to 8 Mbps

downstream and 832 Kbps upstream.

GLITE: G.lite (G.992.2) with line rate support of up to 1.5 Mbps downstream and

512 Kbps upstream.

MMODE: Support Multi-Mode standard (ANSI T1.413 Issue 2; G.dmt(G.992.1);

G.lite(G.992.2)).

Apply: Click Apply to save the changes.

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Advanced

The Advanced section is divided into Advanced features and Firewall features, and lets you
configure advanced features like UPnP, SNMP, Bridge Filters, and LAN clients.

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Advanced Features

UPnP

Your NB4 is Universal Plug 'n Play Capable, for security this feature is disabled by default.
UPnP is a method of allowing devices and computer software on your Network to be able to
configure 'unblocked' ports through your NB4 (and through the NB4 firewall). This makes it
easier to run Network games and Programs like Microsoft Messenger etc.

To Enable UPnP click the ENABLE box and choose the connection (usually 'Connection 0')
then click Apply and Save Settings.

Enable UPNP: Enable the UPnP.

Apply: Click Apply to save the changes.

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SNMP

The Simple Network Management Protocol(SNMP) let a network administrator monitor on a
network by retrieving settings on remote network devices. Network administrator typically
runs an SNMP management station program such as MIB browser on a local host to obtain
information from an SNMP agent such as the router you use now.

Vendor OID: The enterprise OID to which the system belongs to.

Name: Enter information about the system name in the system contact field.

Location: Enter information about the system contact person in the system contact

field.

Contact: Enter information about the system contact person in the system contact

field.

Idle time out: The period of time which allows SNMP to be idle before exit.

Name: Community name.

Access Right: Select ReadOnly or ReadWrite.

Apply: Click Apply to save the changes.

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LAN Clients

LAN Client names are a way of applying specific Port-forwarding and Access Control rules to
individual computers on the LAN. If DHCP is used, all DHCP clients are automatically
assigned and are designated as a LAN client.

To add a LAN client, click Advanced>Advanced Features>LAN Clients.

New IP Address: Enter the IP Address.

Hostname: Enter the Hostname.

Apply: Click Apply to save the changes.

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MacFilters

MAC filtering enables rules to be defined which allow or deny data to pass through the Router
based on the source and destination MAC address and data type of each data frame.

To access MAC Filters Control, click on Advanced>Advanced Features>MAC Filters .

Usage examples of MAC Filter Rules are: to specify which computers on a network are
allowed Internet access; or to determine which particular computers are allowed to access
services provided by the Router (the last point is particularly relevant for routers serving
Wireless Networks as it can be used to prevent unauthorised people from attaching themselves
to a wireless LAN).

Enable/Disable MAC Filtering

To enable MAC filtering, navigate to the MAC Filter Control Screen and select the Enable
MAC Filters check box.

If the check box is selected, MAC filtering is enabled according to the list of MAC Filter Rules
that has been created.

If the box is de-selected, MAC Filtering will not be enabled, even if MAC Filter Rules have
been created.

Create MAC Filter Rules

Enter the Source MAC and Destination MAC details. Entering zeros or blanks into the Source
or Destination fields enters a null value.

'Protocol' provides the choice of protocol type for the rule.

'Mode' provides the choice of Allow or Deny for the rule.

When all selections are made, click on Add to add the rule to the list of rules. A maximum of
20 MAC Filter Rules can be defined and saved.

To save changes, click on Save Settings on the left-hand menu.

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Edit or Delete MAC Filter Rules

To edit an existing MAC Filter Rule, click the radio button adjacent to the Filter Rule name.
The Rule will then appear in the top half of the MAC Filter control screen where it can be
edited. When editing is complete, click 'Add' to return the Rule to the list of existing rules.

To delete MAC Filter Rules, click on the 'Delete' tick box; multiple deletions can be made by
shift-clicking Delete tick boxes; Select All will select every rule. When the desired selections
are made, effect deletion by clicking on Apply.

To save changes, click on Save Settings on the left-hand menu.

Hidden MAC Filter Rules

The MAC filter table contains three hidden rules. These rules are built into the Router to ensure
the user does not become locked out by entering a rule which prevents further access to the
router.

The first rule allows any and all ARP frames through the system.

The second rule allows all IPv4 frames with the destination MAC address of the bridge to go
through.

The third rule allows all IPv4 frames with the source MAC address of the bridge to go through.

TIP: To find the MAC address of a Windows-based computer, at the DOS prompt type:
ipconfig /all.

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Multicast

IGMP [=Internet Group Management Protocol] Multicast enables communication between a
single sender and multiple receivers on a network. It is used when data needs to be sent from
one to many devices. Typical uses might include the updating of mobile personnel from a
home office or the periodic publishing of an online newsletter. Multicasting provides efficien­cies which enable it to use less network bandwidth than the sending of the same data by other
means [e.g. SMTP].

To access Multicasting, click on Advanced>Advanced Features>Multicast.

To enable Multicast, open the multicast screen and select the Enable IGMP Multicast.

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Static Routing

If the Router is required to serve more than one network, you will need to set up a Static Route
between the networks. Static routing can be used to allow users from one IP domain to access

the Internet through the Router in another domain. A Static Route provides the defined
pathway that network information must travel to reach the specific host or network which is
providing Internet access .

To access the Static Routing controls, click on Advanced>Advanced Features> Static Routing.

Configuring Static Routing:

Choose a Connection: presents list of Saved Connections. Select appropriate connection from
list.

The New Destination IP is the address of the remote LAN network or host to which you want
to assign a static route. Enter the IP address of the host for which you wish to create a static
route here. For a standard Class C IP domain, the network address is the first three fields of the
New Destination IP, while the last field should be 0. The Subnet Mask identifies which portion
of an IP address is the network portion, and which portion is the host portion. For a full Class
C Subnet, the Subnet Mask is 255.255.255.0. The Gateway IP address should be the IP address
of the gateway device that allows for contact between the Gateway and the remote network or
host.

Gateway: IP address refers to the IP address of the near device that is to connect with the
remote network or host. If the NB4 is fulfilling this function then its IP address will be entered
in this field.

To save changes, click on Apply, then click on Save Settings.

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Dynamic Routing

Dynamic Routing makes use of the RIP Protocol to allow the ADSL Router to automatically
adjust to physical changes in the network. The NB4, using the RIP protocol, will determine the
network packet route based on the fewest number of hops between the Source and the
Destination. The RIP protocol regularly broadcasts routing information to other Routers on the
network and is part of the IP Suite.

To access Dynamic Routing click Advanced>Advanced Features>Dynamic Routing.

Enable RIP: if this box is checked, Dynamic Routing is enabled.

Protocol: choice is dependent upon the network environment. Most networks

support Rip v1. If RIP v1 is selected, routing data will be sent in RIP v1
format. If Rip V2 is selected, routing data will be sent in RIP v2 format
using Subnet Broadcasting. If Rip V1 Compatible is selected, routing
data will be sent in RIP v2 format using Multicasting.

Direction: determines the direction that RIP routes will be updated.

Select 'In': the Router will only incorporate received RIP information.

Select 'Out': the ADSL Router will only send out RIP information.

Select 'Both': the ADSL Router will both incorporate received RIP information and

send out updated RIP information.

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Port Forwarding

Port Forwarding is necessary because NAT [=Network Address Translation] only forwards
traffic from the Internet to the LAN if a specific port mapping exists in the NAT translation
table. Because of this, the NAT provides a level of protection for computers that are connected
to your LAN. However, this also creates a connectivity problem when you want to make LAN
resources available to Internet clients, which you may want to do to play network games or
host network applications.

Thus Port Forwarding is necessary to run certain games, chat clients, video-conferencing and
other kinds of application. You might also need to configure port-forwarding if you intend to
host a web server or mail server that is to be visible outside your LAN.

TIP: In situations where you are hosting a Web Site or, for example, setting up a

regular NetMeeting link, it is advisable to consider implementing a Fixed IP
address, otherwise the dynamic IP address allocated by DHCP will need to be
communicated prior to every user session.

To access Port Forwarding, click on Advanced>Firewall>Port Forwarding

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Easy Port Forwarding: Applying Pre-Defined Rules

WAN Connection: refers to the active Connection Profile.

LAN IP: refers to the local Router IP address; the NB4 Default IP is shown in this example.

New IP: If you wish to manually add a LAN client so that you can apply rules to it, click on
the New IP Button and enter Host Name and IP Address.

Available pre-defined rules are categorised according to the application type. Click the Radio
Button adjacent to the appropriate Category, and then select the required application name.
Click on the Add button to move the application into the Applied Rules box. In the example
shown on the previous page, 'Delta Force' has been selected from the list of Available Rules
and is about to be copied to Applied Rules. In the example, this will configure the NB4 ports
to use with 'Delta Force' .

To remove a rule from the Applied Rules box, select the Rule and click on the Remove Button.

To save changes, click on Apply, then click on Save Settings.

Advanced Port Forwarding: Creating Custom Rules

If there is no pre-defined Port Forwarding Rule for a particular application, a User Rule can be
created which defines the required Port(s), Protocol(s) and Internal Port forwarding rules.

Note than in this section, 'inside port' is indicated by the port map field and corresponds to the
port number on the LAN Client. 'Outside ports' refer to the WAN port numbers and are
designated by the 'port start' and 'port end' fields.

To create a custom rule you will need to know the specific port number(s) and port type [UDP
or TCP] that the application requires. These will be the outside port numbers. Some applica­tions specify a range of ports in which case you will need to know both the starting and ending
port numbers in the range, which are mapped by the start port and end port fields.

The Port Map field specifies the internal port that the data will be directed to on the LAN
Client. When dealing with port ranges, the Internal Port (designated by the Port Map field) will
be the same as the first port in the range. When you simply want to forward a single port from
outside (i.e. WAN side) to inside (i.e. LAN side), then all three fields (Port Start, Port End and
Port Map) will have the same port number.

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To create a New Port Forward Rule:

On the Port Forwarding page shown in the figure above, click on the User radio button, then
on the New Button.

Rule Name: enter a name that identifies the rule; for the sake of clarity this will usually be the
name of the application. The name must be unique, must not contain spaces and cannot begin
with a number.

Protocol: can be either TCP or UDP, or both.

Port start…port end: These will be the same if you are forwarding only a single port. If there is
a range, then port start is the first number in the range, and port end will be the last number.

Port Map: this is the port number that the data should be forwarded to on the specified LAN IP
(i.e. the inside port). This is usually the same as the port start figure.

TIP: It is possible to map outside port numbers, or ranges [i.e. port start…port end] to a
different inside port numbers [port map] for reasons of security or convenience.

Click 'Apply'

The Port Rule settings defined by this process will then be displayed in a table at the bottom of
the Rule Management panel.

If you wish to add more ports to this rule, leave the text name in the Rule Name field and enter
the new port settings. Click 'Apply' and the new settings will be added to the list.

Adding Custom Rules to Applied Rules List

When you have assigned all necessary ports to the Rule and they appear in the table, click on
the Port Forwarding menu item to return to the main Port Forwarding screen.

User-created rules will be shown in the Available Rules list when the User Category radio
button is selected. You can now apply the rule(s) by selecting it and clicking Add. This will add
the rule to list of applied rules.

Click on Save Settings on the left-hand menu to make changes permanent.

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Access Control

Use Access Control to configure advanced security functions by customising the NB4
Firewall. The default 'Firewall On' setting blocks all anonymous Internet traffic. Access
control enables the user to selectively direct such traffic, for example to a Web Host in the
DMZ or to specific ports opened for such applications as Web, Telnet or FTP.

CAUTION: This dialog box indicates that you should not disable LAN Web Access or else

you might not be able to connect to the device. If you become locked out of the
device perform a Factory Default Reset as detailed on page 16 of this manual.

To configure Access Control, click on Advanced>Firewall>Access Control

This will reveal the Enable Access Control screen.

The default configuration enables Telnet, Web, FTP and SSH access FROM the LAN TO the
WAN. Access FROM the WAN to the LAN is not available in the default configuration.

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Enable Access Control: check this box to enable selective access from the WAN to your LAN
for applications of the class indicated by the relevant check boxes. If Access Control is not
enabled, the individual check boxes cannot be checked.

If Access Control is enabled, and an Enable WAN checkbox is selected, then WAN access to
the matching service is enabled. In other words, for example, if your were to enable Telnet
access on the WAN you could then manage and configure your NB4 from anywhere on the
Internet via Telnet.

Caution: Enabling WAN access to the NB4reduces security…

IP Access List: This enables you to specify which LAN/WAN IP addresses are allowed access
to the NB4 configuration services specified.

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IP Filters

The IP filters page allows you to specify Normal Port Forwards, Block ALL traffic to specific
LAN Clients or specify Custom IP filters that will control the flow of data across the router.

Custom IP filters (Often also refered to as 'Access Control Lists' ) allow you to specify
individual rules that will deny traffic by defining the following;

■ Source IP address or IP Subnet

■ Destination IP address or Subnet

■ Port or Port range

■ Protocol

Customer IP filter are different from Port forwards, or Block All traffic because they allow
greater scopes of IP addresses to be included in the block.

To access IP Filters, click on Advanced>Firewall>IP Filters.

NOTE: You must have at least one LAN Client in your LAN clients table before IP filters

can be created. To create a LAN Client, see the section above on LAN Clients
under the Advanced Menu.

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DMZ Settings

A DMZ (demilitarized zone) is a computer host or small network inserted as 'neutral territory'
between a private LAN and the Internet. It prevents outside users from getting direct access to
LAN computers while still being able to access services hosted on the designated DMZ
Computer. When using NAPT to share your internet connection, LAN computers will still be
able to access the Internet when the DMZ host is enabled. Any direct communication to the
WAN port of the NB4 that is not a reply to the original NAPT request is forwarded to the DMZ
host.

Select Advanced>Firewall>DMZ. Check box 'Enable DMZ'.

New IP: Click on New IP to add a LAN Client which can be specified as DMZ

Host; for more info on adding LAN Clients see 'Adding LAN Clients'
above.

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Tools

The Tools section allows you to save the configuration, restart the gateway, update the gateway
firmware, setup user and remote log information and run Ping and Modem tests.

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System Commands

System commands allow you to carry out basic system actions. Press the button to execute a
command. Here you will find the following functions:

■ Save All (same as Save Settings on side menu)

■ Restart (Same as Reboot on side menu)

■ Restore Defaults (same as pressing and holding the button on the back to clear and reset to

factory default.

Note: If you Restore Defaults you will need to reconfigure your internet connection

settings, ISP Username & Password etc.

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User Management

User Management is used to change your NB4’s User Name or Password.

User Name: Default is 'admin'.

Password: Default is 'password'.

Apply: Click Apply to save the changes.

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Update Firmware

To update your NB4 firmware, browse an update image file or configuration file and then click
the Update Gateway button.

Additionally, you may download your configuration file from the system by clicking “Get
Configuration” so that you can store a backup of your configuration to restore it at a later date.

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Ping Test

The Ping test allows you to ping local and remote IP addresses to check for connectivity
directly from the router to the Internet or to a computer on your Network. You must make
certain that the IP address that you ping will actually respond to a ping before interpreting the
results of the ping.

Note: Computers and Network devices can be configured to communicate even though

they do not respond to a ping, this can sometimes be done for security.

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Modem Test

This test can be used to check whether your Modem is properly connected to the Network.
This test may take a few seconds to complete. To perform the test, select your connection from
the list and press the Test button.

Note: Errors or failures on this test do not specifically mean your connection is faulty,

only your ISP can tell you if these tests should pass or fail.

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Status

The Status section allows you to view the Status/Statistics of different connections and
interfaces.

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Network Statistics

You can view data statistics for your Ethernet ports combined or for your ADSL port in these
pages.

Note: The statistics will be reset on loss of power or Reboot/Reset.

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Connection Status

Here you can view the connection status of your Internet connection (usually 'Connection 0').
You can also see the Public IP address that has been assigned to your NB4 as well as other
information about the connection.

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DHCP Clients

The DHCP Clients page shows the MAC address, IP Address, Host Name and Lease Time
assigned to other computers in your network by the NB4.

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Modem Status

The Modem Status page shows the modem status and DSL statistics.

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Product Information

The Product Information page shows the product information and software versions.

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System Log

The System Log page shows the events triggered by the system.

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Help

At this window you can access the help screens for the topic listed.

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Firewall

Help section for Port Forwarding, Access Control, and Advanced Security.

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Bridge Filters

Help section for Bridge Filters.

LAN Clients

Help section for LAN Clients.

PPP Connection

Help section for PPP Connection.

UPnP

Help section for UPnP.

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Appendix A: SpecificationAppendix A: Specification

Appendix A: Specification

Appendix A: SpecificationAppendix A: Specification

Model Name NB4

Line Connection RJ-11(2 wires) , RJ-45 (4 port)

ADSL Features DMT modulation and demodulation

Tone detection for low power mode
ITU 992.1 (G.dmt) Annex A, B, C
ITU 992.2 (G.lite)
ITU 992.3 ADSL2 (G.dmt.bis)
ITU 992.4 ADSL2 (G.lite.bis)
ITU 992.5 ADSL2+
ANSI T1.413 Issue 2

Full-rate adaptive modem Maximum downstream rate of 8 Mbps ,12Mbps(ADSL2)

Maximum upstream rate of 1 Mbps

G.lite adaptive modem Maximum downstream rate of 1.5 Mbps

Maximum upstream rate of 512 Kbps

WAN Mode Support PPP over ATM (RFC 2364)

PPP over Ethernet (RFC 2516)

LAN Mode Support Bridged/routed Ethernet over ATM (RFC 2684/1483)

Classical IP over ATM (RFC 1577) and PPP over Ethernet
(RFC 2516)

Bridge Mode Support Ethernet to ADSL self-learning Transparent Bridging (IEEE

802.1D)
Supports up to 128 MAC learning addresses

Router Mode Support IP routing-RIPv2 (backward compatible with RIPv1)

Static routing
DHCP (Dynamic Host Configuration Protocol) Server and
Client
NAPT (Network Address and Port Translation)
NAT (Network Address Translation)
ICMP (Internet Control Message Protocol)
Simultaneous USB and Ethernet operation
IGMP (Internet Group Management Protocol)

Ethernet Features ONE RJ-45 connectors for 10/100 Mbps Ethernet LAN

connection,
DMZ function can be set up between them
Complies with IEEE 802.3u specification
Supports IEEE 802.3x Flow control in Full Duplex mode

PTT and Safety A-Tick N367

OS Win-98SE, Win-2000, Win-Me, Win-XP, Mac, Linux.

System Requirement PII-266 + 32M RAM

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Power External AC Power

Input : 240Volts AC, 50Hz.
Output : 7.5VDC/1.5A

LED Indication Power, LAN1, LAN2, LAN3, LAN4, ADSL Link/Act

SIZE 142mm x 112mm

Software Upgrade Upgrade by Ethernet Port

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Appendix B: Cable ConnectionsAppendix B: Cable Connections

Appendix B: Cable Connections

Appendix B: Cable ConnectionsAppendix B: Cable Connections

This cable information is provided for your reference only. Please ensure you only connect
the appropriate cable into the correct socket on either this product or your computer.

If you are unsure about which cable to use or which socket to connect it to, please refer to the
hardware installation section in this manual. If you are still not sure about cable connections,
please contact a professional computer technician or NetComm for further advice.

RJ-45 Network Ports

RJ-45 Network Ports can connect any networking devices that use a standard LAN interface,
such as a Hub/Switch Hub or Router. Use unshielded twisted-pair (UTP) or shield twisted-pair
(STP) cable to connect the networking device to the RJ-45 Ethernet port. Depending on the
type of connection, 10Mbps or 100Mbps, use the following Ethernet cable, as prescribed.

10Mbps: Use EIA/TIA-568-100-Category 3, 4 or 5 cable.

100Mbps: Use EIA/TIA-568-100-Category 5 cable.

Note:Note:

Note:

Note:Note:

To prevent loss of signal, make sure that the length of any twisted-pairTo prevent loss of signal, make sure that the length of any twisted-pair

To prevent loss of signal, make sure that the length of any twisted-pair

To prevent loss of signal, make sure that the length of any twisted-pairTo prevent loss of signal, make sure that the length of any twisted-pair
connection does not exceed 100 metres.connection does not exceed 100 metres.

connection does not exceed 100 metres.

connection does not exceed 100 metres.connection does not exceed 100 metres.

RJ-45 Connector

Pin Assignment Normal Assignment

1 Input Receive Data +
2 Input Receive Data ­3 Output Transmit Data +
6 Output Transmit Data -

4,5,7,8 Not used

Figure 1

Twisted pair cables

Figures 1 and 2 illustrate the use of straight-through and crossover twisted pair cables along
with the connector.

RJ-45 plug
attached to cable

Figure 2

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Straight and crossover cable configuration

Figure 3

Figure 4

RJ11 connector and cable

An RJ-11 connector is the small, modular plug used for most analog telephones. It has six pin
slots in the head, but usually only two or four of them are used.

RJ-11 Connector

Pin Assignment Normal Assignment

1 Not Connected
2 Not connected
3 Line
4 Line
5 Not Connected
6 Not Connected

Figure 5

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605 to RJ-11 adapter

The 605 to RJ-11 adaptor is provided to comply with the older 610 Telstra wall socket. The 605
to RJ-11 adapter may be used to convert the supplied RJ-11 cable, if the older connection is
required.

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Appendix C: GlossaryAppendix C: Glossary

Appendix C: Glossary

Appendix C: GlossaryAppendix C: Glossary

10BASE-T A designation for the type of wiring used by Ethernet networks

with a data rate of 10 Mbps. Also known as Category 3 (CAT 3)
wiring. See also data rate, Ethernet.

100BASE-T A designation for the type of wiring used by Ethernet networks

with a data rate of 100 Mbps. Also known as Category 5 (CAT 5)
wiring. See also data rate, Ethernet.

ADSL Asymmetric Digital Subscriber Line. The most commonly

deployed flavor of DSL for home users. The term asymmetrical
refers to its unequal data rates for downloading and uploading
(the download rate is higher than the upload rate). The asym­metrical rates benefit home users because they typically
download much more data from the Internet than they upload.

analog Of data, having a form is analogous to the data's original

waveform. The voice component in DSL is an analog signal. See
also digital.

ATM Asynchronous Transfer Mode A standard for high-speed

transmission of data, text, voice, and video, widely used within
the Internet. ATM data rates range from 45 Mbps to 2.5 Gbps.
See also data rate.

authenticate To verify a user’s identity, such as by prompting for a password.

binary The "base two" system of numbers, that uses only two digits, 0

and 1, to represent all numbers. In binary, the number 1 is written
as 1, 2 as 10, 3 as 11, 4 as 100, etc. Although expressed as
decimal numbers for convenience, IP addresses in actual use are
binary numbers; e.g., the IP address 209.191.4.240 is

11010001.10111111.00000100.11110000 in binary. See also bit, IP
address, network mask.

bit Short for "binary digit," a bit is a number that can have two

values, 0 or 1. See also binary.

bps bits per second

bridging Passing data from your network to your ISP and vice versa using

the hardware addresses of the devices at each location. Bridging
contrasts with routing, which can add more intelligence to data
transfers by using network addresses instead. The My ADSL
Modem can perform both routing and bridging. Typically, when
both functions are enabled, the device routes IP data and bridges
all other types of data. See also routing.

broadband A telecommunications technology that can send different types

of data over the same medium. DSL is a broadband technology.

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Broadcast To send data to all computers on a network.

CO Central Office A circuit switch that terminates all the local access

lines in a particular geographic serving area; a physical building
where the local switching equipment is found. xDSL lines
running from a subscriber’s home connect at their serving central
office.

DHCP Dynamic Host Configuration Protocol DHCP automates

address assignment and management. When a computer
connects to the LAN, DHCP assigns it an IP address from a
shared pool of IP addresses; after a specified time limit, DHCP
returns the address to the pool.

DHCP relay Dynamic Host Configuration Protocol relay. A DHCP relay is a

computer that forwards DHCP data between computers that
request IP addresses and the DHCP server that assigns the
addresses. Each of the My ADSL Modem's interfaces can be
configured as a DHCP relay. See DHCP.

DHCP server Dynamic Host Configuration Protocol server. A DHCP server is a

computer that is responsible for assigning IP addresses to the
computers on a LAN. See DHCP.

digital Of data, having a form based on discrete values expressed as

binary numbers (0's and 1's). The data component in DSL is a
digital signal. See also analog.

DNS Domain Name System. The DNS maps domain names into IP

addresses. DNS information is distributed hierarchically
throughout the Internet among computers called DNS servers.
When you start to access a web site, a DNS server looks up the
requested domain name to find its corresponding IP address. If
the DNS server cannot find the IP address, it communicates with
higher-level DNS servers to determine the IP address. See also
domain name.

domain name A domain name is a user-friendly name used in place of its

associated IP address. For example, www.globespan.net is the
domain name associated with IP address 209.191.4.240. Domain
names must be unique; their assignment is controlled by the
Internet Corporation for Assigned Names and Numbers
(ICANN). Domain names are a key element of URLs, which
identify a specific file at a web site, e.g., http://
www.globespan.net/index.html. See also DNS.

download To transfer data in the downstream direction, i.e., from the

Internet to the user.

DSL Digital Subscriber Line A technology that allows both digital data

and analog voice signals to travel over existing copper telephone
lines.

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Ethernet The most commonly installed computer network technology,

usually using twisted pair wiring. Ethernet data rates are 10 Mbps
and 100 Mbps. See also BASE-T,100BASE-T, twisted pair.

Filtering To screen out selected types of data, based on filtering rules.

Filtering can be applied in one direction (upstream or down­stream), or in both directions.

filtering rule A rule that specifies what kinds of data a routing device will

accept and/or reject. Filtering rules are defined to operate on an
interface (or multiple interfaces) and in a particular direction
(upstream, downstream, or both).

Firewall Any method of protecting a computer or LAN connected to the

Internet from intrusion or attack from the outside. Some firewall
protection can be provided by packet filtering and Network
Address Translation services.

FTP File Transfer Protocol - A program used to transfer files between

computers connected to the Internet. Common uses include
uploading new or updated files to a web server, and downloading
files from a web server.

GGP Gateway to Gateway Protocol. An Internet protocol that specifies

how gateway routers communicate with each other.

Gbps Abbreviation for Gigabits (GIG-uh-bits) per second, or one

billion bits per second. Internet data rates are often expressed in
Gbps.

GRE Generic Routing Encapsulation. TCP/IP protocol suite, transport

layer encapsulation protocol.

hop When you send data through the Internet, it is sent first from

your computer to a router, and then from one router to another
until it finally reaches a router that is directly connected to the
recipient. Each individual “leg” of the data’s journey is called a
hop.

hop count The number of hops that data has taken on its route to its

destination. Alternatively, the maximum number of hops that a
packet is allowed to take before being discarded , See also TTL.

host A device (usually a computer) connected to a network.

HTTP Hyper-Text Transfer Protocol HTTP is the main protocol used to

transfer data from web sites so that it can be displayed by web
browsers. See also web browser

ICMP Internet Control Message Protocol An Internet protocol used to

report errors and other network-related information. The ping
command makes use of ICMP.

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IGMP Internet Group Management Protocol An Internet protocol that

enables a computer to share information about its membership in
multicast groups with adjacent routers. A multicast group of
computers is one whose members have designated as interested
in receiving specific content from the others. Multicasting to an
IGMP group can be used to simultaneously update the address
books of a group of mobile computer users or to send company
newsletters to a distribution list.

in-line filter See Microfilter

Internet The global collection of interconnected networks used for both

private and business communications.

intranet A private, company-internal network that looks like part of the

Internet (users access information using web browsers), but is
accessible only by employees.

IP See TCP/IP.

IP address Internet Protocol address The address of a host (computer) on

the Internet, consisting of four numbers, each from 0 to 255,
separated by periods, e.g., 209.191.4.240. An IP address consists
of a network ID that identifies the particular network the host
belongs to, and a host ID uniquely identifying the host itself on
that network. A network mask is used to define the network ID
and the host ID. Because IP addresses are difficult to remember,
they usually have an associated domain name that can be
specified instead. See also domain name, network mask.

ISP Internet Service Provider A company that provides Internet

access to its customers, usually for a fee.

LAN Local Area Network A network limited to a small geographic

area, such as a home, office, or small building.

LED Light Emitting Diode An electronic light-emitting device. The

indicator lights on the front of the My ADSL Modem are LEDs.

MAC address Media Access Control address The permanent hardware address

of a device, assigned by its manufacturer. MAC addresses are
expressed as six pairs of characters.

mask : See network mask.

Mbps Abbreviation for Megabits per second, or one million bits per

second. Network data rates are often expressed in Mbps.

Microfilter In splitterless deployments, a microfilter is a device that removes

the data frequencies in the DSL signal, so that telephone users do
not experience interference (noise) from the data signals.
Microfilter types include in-line (installs between phone and
jack) and wall-mount (telephone jack with built-in microfilter).
See also splitterless.

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NAT Network Address Translation A service performed by many

routers that translates your network’s publicly known IP address
into a Private IP address for each computer on your LAN. Only
your router and your LAN know these addresses; the outside
world sees only the public IP address when talking to a computer
on your LAN.

NAT rule A defined method for translating between public and private IP

addresses on your LAN.

network A group of computers that are connected together, allowing them

to communicate with each other and share resources, such as
software, files, etc.A network can be small, such as a LAN, or
very large, such as the Internet.

network mask A network mask is a sequence of bits applied to an IP address to

select the network ID while ignoring the host ID. Bits set to 1
mean "select this bit" while bits set to 0 mean "ignore this bit."
For example, if the network mask 255.255.255.0 is applied to the
IP address 100.10.50.1, the network ID is 100.10.50, and the host
ID is 1. See also binary, IP address, subnet

NIC Network Interface Card An adapter card that plugs into your

computer and provides the physical interface to your network
cabling, which for Ethernet NICs is typically an RJ-45 connector.
See Ethernet, RJ-45.

packet Data transmitted on a network consists of units called packets.

Each packet contains a payload (the data), plus overhead
information such as where it came from (source address) and
where it should go (destination address).

ping Packet Internet (or Inter-Network) Groper A program used to

verify whether the host associated with an IP address is online. It
can also be used to reveal the IP address for a given domain
name.

port A physical access point to a device such as a computer or router,

through which data flows into and out of the device.

POTS Plain Old Telephone Service Traditional analog telephone service

using copper telephone lines. Pronounced pots. See also PSTN.

POTS splitter See splitter.

PPP Point-to-Point Protocol A protocol for serial data transmission

that is used to carry IP (and other protocol) data between your
ISP and your computer. The WAN interface on the My ADSL
Modem uses two forms of PPP called PPPoA and PPPoE. See
also PPPoA, PPPoE.

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PPPoA Point-to-Point Protocol over ATM One of the two types of PPP

interfaces you can define for a Virtual Circuit (VC), the other
type being PPPoE. You can define only one PPPoA interface per
VC.

PPPoE Point-to-Point Protocol over Ethernet One of the two types of

PPP interfaces you can define for a Virtual Circuit (VC),the other
type being PPPoA. You can define one or more PPPoE interfaces
per VC.

protocol A set of rules governing the transmission of data. In order for a

data transmission to work, both ends of the connection have to
follow the rules of the protocol.

remote In a physically separate location. For example, an employee

away on travel who logs in to the company’s intranet is a remote
user.

RIP Routing Information Protocol The original TCP/IP routing

protocol. There are two versions of RIP: version and version II.

RJ-11 Registered Jack Standard-11 The standard plug used to connect

telephones, fax machines, modems, etc. to a telephone jack. It is
a 6-pin connector usually containing four wires.

RJ-45 Registered Jack Standard-45 The 8-pin plug used in transmitting

data over phone lines. Ethernet cabling usually uses this type of
connector.

routing Forwarding data between your network and the Internet on the

most efficient route, based on the data’s destination IP address
and current network conditions. A device that performs routing is
called a router.

rule See filtering rule, NAT rule.

SDNS Secondary Domain Name System (server) A DNS server that can

be used if the primary DSN server is not available. See DNS.

SNMP Simple Network Management Protocol The TCP/IP protocol

used for network management.

splitter A device that splits off the voice component of the DSL signal to

a separate line, so that data and telephone service each have their
own wiring and jacks. The splitter is installed by your telephone
company where the DSL line enters your home. The CO also
contains splitters that separate the voice and data signals, sending
voice to the PSTN and data on high-speed lines to the Internet.
See also CO, PSTN, splitterless, microfilter.

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splitterless A type of DSL installation where no splitter is installed, saving

the cost of a service call by the telephone company. Instead, each
jack in the home carries both voice and data, requiring a
microfilter for each telephone to prevent interference from the
data signal. ADSL is usually splitterless; if you are unsure if your
installation has a splitter, ask your DSL provider. See also splitter,
microfilter.

subnet A subnet is a portion of a network. The subnet is distinguished

from the larger network by a subnet mask which selects some of
the computers of the network and excludes all others. The
subnet's computers remain physically connected to the rest of
the parent network, but they are treated as though they were on a
separate network. See also network mask.

subnet mask A mask that defines a subnet. See also network mask.

TCP See TCP/IP.

TCP/IP Transmission Control Protocol/Internet Protocol The basic

protocols used on the Internet. TCP is responsible for dividing
data up into packets for delivery and reassembling them at the
destination, while IP is responsible for delivering the packets
from source to destination. When TCP and IP are bundled with
higher-level applications such as HTTP, FTP, Telnet, etc., TCP/IP
refers to this whole suite of protocols.

Telnet An interactive, character-based program used to access a remote

computer. While HTTP (the web protocol) and FTP only allow
you to download files from a remote computer, Telnet allows
you to log into and use a computer from a remote location.

TFTP Trivial File Transfer Protocol. A protocol for file transfers, TFTP

is easier to use than File Transfer Protocol (FTP) but not as
capable or secure.

TTL Time To Live A field in an IP packet that limits the life span of

that packet. Originally meant as a time duration, the TTL is
usually represented instead as a maximum hop count; each
router that receives a packet decrements this field by one. When
the TTL reaches zero, the packet is discarded.

twisted pair The ordinary copper telephone wiring long used by telephone

companies. It contains one or more wire pairs twisted together to
reduce inductance and noise. Each telephone line uses one pair.
In homes, it is most often installed with two pairs. For Ethernet
LANs, a higher grade called Category 3 (CAT 3) is used for
10BASE-T networks, and an even higher grade called Category 5
(CAT 5) is used for 100BASE-T networks. See also 10BASE-T,
100BASE-T, Ethernet.

upstream The direction of data transmission from the user to the Internet.

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USB Universal Serial Bus A serial interface that lets you connect

devices such as printers, scanners, etc. to your computer by
simply plugging them in. The My ADSL Modem is equipped
with a USB interface for connecting to a stand-alone PC.

VC Virtual Circuit A connection from your ADSL router to your ISP.

VCI Virtual Circuit Identifier Together with the Virtual Path Identifier

(VPI), the VCI uniquely identifies a VC. Your ISP will tell you
the VCI for each VC they provide. See also VC.

VPI Virtual Path Identifier Together with the Virtual Circuit Identifier

(VCI), the VPI uniquely identifies a VC. Your ISP will tell you
the VPI for each VC they provide. See also VC.

WA N Wide Area Network Any network spread over a large geographi-

cal area, such as a country or continent. With respect to the My
ADSL Modem, WAN refers to the Internet.

Web browser A software program that uses Hyper-Text Transfer Protocol

(HTTP) to download information from (and upload to) web sites,
and displays the information, which may consist of text, graphic
images, audio, or video, to the user. Web browsers use Hyper­Text Transfer Protocol (HTTP). Popular web browsers include
Netscape Navigator and Microsoft Internet Explorer. See also
HTTP, web site, WWW.

Web page A web site file typically containing text, graphics and hyperlinks

(cross-references) to the other pages on that web site, as well as
to pages on other web sites. When a user accesses a web site, the
first page that is displayed is called the Home page. See also
hyperlink, web site.

Web site A computer on the Internet that distributes information to (and

gets information from) remote users through web browsers. A
web site typically consists of web pages that contain text,
graphics, and hyperlinks. See also hyperlink, web page.

WWW World Wide Web Also called (the) Web. Collective term for all

web sites anywhere in the world that can be accessed via the
Internet.

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Appendix D: Registering your NetComm ProductAppendix D: Registering your NetComm Product

Appendix D: Registering your NetComm Product

Appendix D: Registering your NetComm ProductAppendix D: Registering your NetComm Product

All NetComm Limited (“NetComm”) products have a standard 12 month warranty from date
of purchase against defects in manufacturing and that the products will operate in accordance
with the specifications outlined in the User Guide. However some products have an extended
warranty option (please refer to packaging). To be eligible for the extended warranty you must
supply the requested warranty information to NetComm within 30 days of the original
purchase by registering on-line via the NetComm web site at:

www.netcomm.com.au

Contact Information

If you have any technical difficulties with your product, please do not hesitate to contact
NetComm’s Customer Support Department.

Email: [e-mail]

Fax: [phone]

Web: www.netcomm.com.au

NOTE:NOTE:

NOTE:

NOTE:NOTE:

NetComm Technical Support for this product only covers the basicNetComm Technical Support for this product only covers the basic

NetComm Technical Support for this product only covers the basic

NetComm Technical Support for this product only covers the basicNetComm Technical Support for this product only covers the basic
installation and features outlined in the Quick Start Guide. For furtherinstallation and features outlined in the Quick Start Guide. For further

installation and features outlined in the Quick Start Guide. For further

installation and features outlined in the Quick Start Guide. For furtherinstallation and features outlined in the Quick Start Guide. For further
information regarding the advanced features of this product, please referinformation regarding the advanced features of this product, please refer

information regarding the advanced features of this product, please refer

information regarding the advanced features of this product, please referinformation regarding the advanced features of this product, please refer
to the configuring sections in this User Guide or contact a Networkto the configuring sections in this User Guide or contact a Network

to the configuring sections in this User Guide or contact a Network

to the configuring sections in this User Guide or contact a Networkto the configuring sections in this User Guide or contact a Network
Specialist.Specialist.

Specialist.

Specialist.Specialist.

NB4 User Guide YML733Rev1
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Appendix E: Legal & Regulatory InformationAppendix E: Legal & Regulatory Information

Appendix E: Legal & Regulatory Information

Appendix E: Legal & Regulatory InformationAppendix E: Legal & Regulatory Information

This manual is copyright. Apart from any fair dealing for the purposes of private study, research, criticism or review, as
permitted under the Copyright Act, no part may be reproduced, stored in a retrieval system or transmitted in any form, by
any means, be it electronic, mechanical, recording or otherwise, without the prior written permission of NetComm
Limited. NetComm Limited accepts no liability or responsibility, for consequences arising from the use of this product.

NetComm Limited reserves the right to change the specifications and operating details of this product without notice.

NetComm is a registered trademark of NetComm Limited.

All other trademarks are acknowledged the property of their respective owners.

Customer Information

ACA (Australian Communications Authority) requires you to be aware of the following information and warnings:

(1) This unit shall be connected to the Telecommunication Network through a line cord which neets the requirements of

the ACA TS008 Standard.

(2) This equipment has been tested and found to comply with the Standards for C-Tick and or A-Tick as set by the ACA

. These standards are designed to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses, and can radiate radio noise and, if not installed and used in
accordance with the instructions detailed within this manual, may cause interference to radio communications.
However, there is no guarantee that interference will not occur with the installation of this product in your home or
office. If this equipment does cause some degree of interference to radio or television reception, which can be
determined by turning the equipment off and on, we encourage the user to try to correct the interference by one or
more of the following measures:

• Change the direction or relocate the receiving antenna.

• Increase the separation between this equipment and the receiver.

• Connect the equipment to an alternate power outlet on a different power circuit from that to which the receiver/TV is
connected.

• Consult an experienced radio/TV technician for help.

(3) The power supply that is provided with this unit is only intented for use with this product. Do not use this power

supply with any other product or do not use any other power supply that is not approved for use with this product by
NetComm. Failure to do so may cause damage to this product, fire or result in personal injury.

Product Warranty

The warranty is granted on the following conditions:

1. This warranty extends to the original purchaser (you) and is not transferable;

2. This warranty shall not apply to software programs, batteries, power supplies, cables or other accessories supplied
in or with the product;

3. The customer complies with all of the terms of any relevant agreement with NetComm and any other reasonable
requirements of NetComm including producing such evidence of purchase as NetComm may require;

4. The cost of transporting product to and from NetComm's nominated premises is your responsibility; and,

5. NetComm does not have any liability or responsibility under this warranty where any cost, loss, injury or damage of
any kind, whether direct, indirect, consequential, incidental or otherwise arises out of events beyond NetComm's
reasonable control. This includes but is not limited to: acts of God, war, riot, embargoes, acts of civil or military
authorities, fire, floods, electricity outages, lightning, power surges, or shortages of materials or labour.

6. The customer is responsible for the security of their computer and network at all times. Security features may be
disabled within the factory default settings. NetComm recommends that you enable these features to enhance your
security.

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The warranty is automatically voided if:

1. You, or someone else, use the product, or attempts to use it, other than as specified by NetComm;

2. The fault or defect in your product is the result of a voltage surge subjected to the product either by the way of
power supply or communication line, whether caused by thunderstorm activity or any other cause(s);

3. The fault is the result of accidental damage or damage in transit, including but not limited to liquid spillage;

4. Your product has been used for any purposes other than that for which it is sold, or in any way other than in strict
accordance with the user manual supplied;

5. Your product has been repaired or modified or attempted to be repaired or modified, other than by a qualified
person at a service centre authorised by NetComm; and,

6. The serial number has been defaced or altered in any way or if the serial number plate has been removed.

Limitations of Warranty

The Trade Practices Act 1974 and corresponding State and Territory Fair Trading Acts or legalisation of another
Government ("the relevant acts") in certain circumstances imply mandatory conditions and warranties which cannot be
excluded. This warranty is in addition to and not in replacement for such conditions and warranties.

To the extent permitted by the Relevant Acts, in relation to your product and any other materials provided with the product
("the Goods") the liability of NetComm under the Relevant Acts is limited at the option of NetComm to:

■ Replacement of the Goods; or

■ Repair of the Goods; or

■ Payment of the cost of replacing the Goods; or

■ Payment of the cost of having the Goods repaired.

All NetComm ACN 002 490 486 products have a standard 12 months warranty from date of purchase. However some
products have an extended warranty option (refer to packaging). To be eligible for the extended warranty you must supply
the requested warranty information to NetComm within 30 days of the original purchase by registering on-line via the
NetComm web site at www.netcomm.com.au.

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