NetComm NB3 User manual

www.netcomm.com.au Rev. 2 - YML680
Page 2 NB3 My ADSL Modem User Guide
Contents
Introduction ....................................................................................................................5
Package Contents ........................................................................................... 5
Features ........................................................................................................... 6
System Requirements ..................................................................................... 6
Using this Document ....................................................................................... 6
Getting to Know the My ADSL Modem ........................................................................... 8
Front Panel ....................................................................................................... 8
Rear Panel ....................................................................................................... 9
Do I need a Micro filter? ................................................................................. 10
Quick Start .....................................................................................................................11
USB Configuration ...................................................................................................... 12
Step 1 - Hardware Installation - USB ............................................................. 12
Step 2 - Computer Configuration - USB ........................................................ 13
Step 3 - Modem Configuration - USB ............................................................ 22
Ethernet Configuration ................................................................................................ 23
Step 1 - Hardware Installation - Ethernet ...................................................... 23
Step 2 - Computer Configuration - Ethernet .................................................. 24
Step 3 - Modem Configuration - Ethernet ...................................................... 38
LAN Configuration ....................................................................................................... 39
Step 1 - Hardware Installation - LAN ............................................................. 39
Step 2 - Computer Configuration - LAN ......................................................... 40
Step 3 - Modem Configuration - LAN ............................................................. 54
Assigning static Internet Information to your PCs ......................................... 55
The My ADSL Modem Quick Configuration Page .......................................... 56
Default My ADSL Modem Settings ................................................................. 59
Getting Started with the Configuration Manager ......................................................... 60
Accessing the Configuration Manager .......................................................... 60
Functional Layout ........................................................................................... 61
Configuring the LAN Ports .......................................................................................... 67
Connecting via Ethernet ................................................................................ 67
Configuring the LAN Port IP Address ............................................................ 67
Viewing the My ADSL Modem’s IP Addresses ............................................... 70
Viewing IP Performance Statistics ................................................................. 71
Configuring Dynamic Host Configuration Protocol .................................................... 72
Overview of DHCP ......................................................................................... 72
My ADSL Modem DHCP modes .................................................................... 72
Configuring DHCP Server ............................................................................. 73
Viewing, modifying, and deleting address pools .......................................... 76

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Configuring Network Address Translation .................................................................. 80
Overview of NAT ............................................................................................. 80
Viewing NAT Global Settings and Statistics .................................................. 81
Viewing NAT Rules and Rule Statistics ......................................................... 83
Viewing Current NAT Translations ................................................................ 84
Configuring DNS Server Addresses ........................................................................... 98
About DNS ..................................................................................................... 98
Assigning DNS Addresses ............................................................................ 98
Configuring DNS Relay ................................................................................. 98
Configuring IP Routes ............................................................................................... 101
Overview of IP Routes .................................................................................. 101
Adding IP Routes ......................................................................................... 104
Configuring Routing Information Protocol ................................................................ 105
RIP Overview ................................................................................................ 105
When should you configure RIP? ................................................................ 105
Viewing RIP Statistics .................................................................................. 107
Configuring the ATM Virtual Circuit ............................................................................ 109
Viewing Your ATM VC .................................................................................... 109
Adding ATM VCs ............................................................................................ 110
Modifying ATM VCs ........................................................................................ 111
Configuring PPP Interfaces ........................................................................................ 112
Viewing Your Current PPP Configuration ..................................................... 112
Modifying and Deleting PPP Interfaces ........................................................ 117
Configuring Ethernet-over-ATM .................................................................................. 118
Overview of EOA ............................................................................................ 118
Viewing Your EOA Setup ............................................................................... 118
Adding EOA Interfaces ................................................................................. 120
Configuring Internet Protocol-over-ATM .................................................................... 122
Viewing Your IPoA Interface Setup ............................................................... 122
Config IP Address and Netmask ................................................................. 123
Gateway Address ......................................................................................... 123
Adding IPoA Interfaces ................................................................................. 124
Configuring Bridging ................................................................................................. 126
Overview of Bridges ..................................................................................... 126
When to Use the Bridging Feature .............................................................. 127
Defining Bridge Interfaces ........................................................................... 127
Deleting a Bridge Interface .......................................................................... 129
Configuring Global Firewall Settings .......................................................... 129
Managing the Black List .............................................................................. 131

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Configuring IP Filters & Blocked Protocols ............................................................... 133
Configuring IP Filters ................................................................................... 133
Viewing Your IP Filter Configuration ............................................................ 133
Configuring IP Filter Global Settings ........................................................... 134
Creating IP Filter Rules ............................................................................... 136
IP filter rule examples – Example 1 ............................................................. 141
IP filter rule examples – Example 2 ............................................................. 142
Viewing IP Filter Statistics ............................................................................ 143
Managing Current IP Filter Sessions .......................................................... 143
Blocked Protocols ........................................................................................ 145
Viewing a DSL Line Information ............................................................................... 147
Administrative Tasks ................................................................................................. 150
Configuring User Names and Passwords ................................................. 150
Creating and Deleting Logins ..................................................................... 150
Changing Login Passwords ....................................................................... 152
Viewing System Alarms ............................................................................... 152
Viewing the Alarm Table .............................................................................. 153
Upgrading the Software ............................................................................... 153
Local Image Upgrade .................................................................................. 153
Remote Image Upgrade .............................................................................. 155
Using Diagnostics ....................................................................................... 156
Modifying Port Settings ................................................................................ 157
Appendix A: IP Addresses, Network Maskes, and Subnets ..................................... 159
Network classes .......................................................................................... 160
Subnet masks ............................................................................................. 160
Binary Numbers ........................................................................................... 161
Bits and bytes .............................................................................................. 162
Appendix B: Troubleshooting ................................................................................... 163
LEDs ............................................................................................................ 163
Internet Access ............................................................................................. 163
Configuration Manager Program ................................................................. 164
Diagnosing Problem using IP Utilities ........................................................ 165
Glossary .................................................................................................................... 167
Registering your NetComm Product ......................................................................... 176
Contact Information ..................................................................................... 176
Legal & Regulatory Information ................................................................... 177
Product Warranty .......................................................................................... 178

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NB3 My ADSL Modem User Guide Page 5
Introduction
Congratulations on becoming the owner of the My ADSL Modem. 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 My ADSL Modem, and how to customize its
configuration to get the most out of your new product.
Package Contents
The following items should be contained in your My ADSL Modem Package:
❒My ADSL Modem (NB3)
❒NetComm Communications CD-ROM and
Documentation (including a Package
Contents Note and a folded Quick Start
Guide)
❒Power Adaptor
❒Telephone line cable (RJ-11) and 605 to
RJ-11 Adaptor
❒Etherent Network Cable (RJ-45)
Check the contents of your package and, if any parts are missing or damaged, please contact
your Dealer.
❒USB Connection Cable

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Features
■External ADSL modem for high-speed Internet access
■10/100Base-T Ethernet router to provide Internet connectivity to all computers on your
LAN
■Optional USB port for connecting a USB-enabled PC
■Network address translation (NAT), Firewall, and IP filtering functions to provide security
for your LAN
■Network configuration through DHCP Server and DHCP Relay
■Services including IP route and DNS configuration, RIP, and IP and DSL performance
monitoring
■Configuration program you access via an HTML browser
System Requirements
In order to use the My ADSL Modem, you must have the following:
■ADSL service up and running on your telephone line, with at least one public Internet
address for your LAN
■One or more computers each containing an Ethernet 10/100 Base-T network interface card
(NIC) and/or a single computer with a USB port.
■An Ethernet hub/switch, if you are connecting the device to more than one computer on an
Ethernet network.
■For system configuration using the supplied web-based program: a web browser such as
Internet Explorer V5.0 or later, or Netscape V6.1 or later
Using this Document
Notational conventions
Acronyms are defined the first time they appear in text and in the Glossary.
For brevity, the My ADSL Modem is referred to as the device.
The terms LAN and network are used interchangeably to refer to a group of Ethernet-connected
computers at one site.
Typographical conventions
Italics are used to identify terms that are defined in the Glossary.
Bold text is used for items you select from menus and drop-down lists, and text strings you
type when prompted by the program.

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Special messages
This document uses the following statement to call your attention to specific instructions or
explanations.
Note : Provides clarifying or non-essential information on the current topic.
Definition : Explains terms or acronyms that may be unfamiliar to many readers. These
terms are also included in the Glossary.
Warning : Provides messages of high importance, including messages relating
to personal safety or system integrity.
NOTE: NetComm Technical Support for this product only covers the basic
installation and features outlined in Option 1 and Option 2 of the
Quick Start Guide.

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Getting to Know the My ADSL Modem
Front Panel
The front panel contains lights called LEDs that indicate the status of the unit.
LED COLOR FUNCTION
PW (Power) Green On: Unit is powered on
Off: Unit is powered off
LK (Link) Green Flashes when ADSL data activity occurs. May appear
solid when data traffic is heavy.

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Rear Panel
The rear panel contains the ports for the unit's data and power connections.
LABEL FUNCTION
DSL Connects the device to a telephone jack for DSL
communication
Ethernet Connects the device to your PC's Ethernet port, or to the
uplink port on your LAN's hub, using the cable provided
Yellow LED: On: 10M LAN link established and active
Off: No 10M LAN link
Green LED: On: 100M LAN link established and active
Off: No 100M LAN link
USB Connects to the USB port on your PC
Reset Resets the device to the factory default configuration
Power Connects to the supplied power converter cable

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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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NB3 My ADSL Modem User Guide Page 11
Quick Start
This Quick Start provides basic instructions for connecting the My ADSL Modem to a
computer and to the Internet.
■Step 1 - describes setting up the hardware.
■Step 2 - describes how to configure Internet properties on your computer(s).
■Step 3 - shows you how to configure basic settings on the My ADSL Modem to get your
LAN connected to the Internet.
This Quick Start 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 network setup. Refer to the subsequent chapters in
this User Guide for advanced configuration instructions.
NOTE: NetComm Technical Support for this product only covers the basic
installation and features outlined in Option 1 and Option 2 of the
Quick Start Guide.
The NetComm NB3 My ADSL Modem can be connected directly to your computer via a USB
or Ethernet interface.
How do I choose the connection type?
Option 1: PREFERRED If your computer has a network card (NIC) but isn’t
connected to a network hub or switch, or another computer,
then connect the NB3 to your network port of your PC
This is the preferred connection method. Follow the step-
by-step instructions in the ETHERNET INSTALLATION
section.
Option2: If your computer doesn’t have a network card, then connect
the NB3 to a USB port (Windows ® 98/Me/2000/XP only).
Follow the step-by-step instructions in the USB
INSTALLATION section.
Option 3: If your computer has a network card (NIC) and is connected
to a network hub or switch, then connect the NB3 to your
network port of your hub or switch Follow the step-by-
step instructions in the LAN INSTALLATION section.
Warning: Before you begin, turn the power off for all devices. These include
your computer(s) and the My ADSL Modem.

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USB Configuration
Step 1 - Hardware Installation - USB
When connecting your My ADSL Modem using a USB cable, please refer to the appropriate
USB diagram and follow the complete driver installation instructions for your operating in Step
2 - Computer Configuration - USB.
Note: When connecting your My ADSL Modem with a USB cable, the USB cable
should not be connected until the driver installation requests it. Refer to the
appropriate operating system instructions for USB Configuration.

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1. Plug in the supplied plug pack and turn
power point on.
2. Connect USB Cable to a USB port on
your PC but do not connect it to the
modem yet.
3. Start PC and log in if not already started.
4. Insert the NetComm NB 3 CD into your
CD drive.
5. The NB3 ADSL Ethernet/USB Modem
autorun screen will appear. Click on
Install NB3 USB Drivers.
Step 2 - Computer Configuration - USB
Windows XP - USB
6. The DSL Modem Setup Wizard will then
start. Click on Next> to continue .
7. Click on Accept to agree to the License
Agreement and continue the installation.
8. When prompted by the Found New
Hardware Wizard click on Next>.
Windows will locate the USB device
driver and copy the required files to your
PC.

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12. Click on Continue Anyway. Windows
will locate the NetComm USB IAD LAN
Modem driver and copy the required files
to your PC.
9. Click on Continue Anyway.
10. Connect the USB cable to the modem.
11. When prompted by the Found New
Hardware Wizard confirm that “Install
the software automatically
(Recommended)” is selected and click on
Next>.

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13. When prompted, select Yes, reboot the
computer now and click on Close.
14. After rebooting the DSL Modem Setup
Wizard will complete the installation.
Click on Finish.

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Windows 2000 - USB
1. Plug in the supplied plug pack and turn
power point on.
2. Connect USB Cable to a USB port on
your PC, but do not connect it to the
modem yet.
3. Start PC and log in if not already started.
4. Insert the NetComm NB 3 CD into your
CD drive.
5. The NB3 ADSL Ethernet/USB Modem
autorun screen will appear. Click on
“Install NB3 USB Drivers”.
6. The DSL Modem Setup Wizard will then
start. Click on Next> to continue.
7. Click on Accept to agree to the License
Agreement and continue the installation.

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8. Click Yes to continue.
9. Connect the USB cable to the modem.
The driver files required to operate the
ADSL modem will be copied to your
system.
10. Click Yes to continue.
11. When prompted select Yes , reboot the
computer now and click on Close.
12. After rebooting the DSL Modem Setup
Wizard will complete the installation.
Click on Finish.

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Windows Me - USB
1. Plug in the supplied plug pack and turn
power point on.
2. Connect USB Cable to a USB port on
your PC, but do not connect it to the
Modem yet.
3. Start PC and log in if not already started.
4. Insert the NetComm NB 3 CD into your
CD drive.
5. The NB3 ADSL Ethernet/USB Modem
autorun screen will appear. Click on
“Install NB3 USB Drivers”.
6. The DSL Modem Setup Wizard will then
start. Click on Next> to continue.
7. Click on Accept to agree to the License
Agreement and continue the installation.

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8. Connect the USB cable to the modem.
The driver files required to operate the
ADSL modem will be copied to your
system.
9. When prompted select Ye s, reboot the
computer now and click on Close.
10. After rebooting the DSL Modem Setup
Wizard will complete the installation.
Click on Finish.

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Windows 98 - USB
1. Plug in the supplied plug pack and turn
power point on.
2. Connect USB Cable to a USB port on
your PC, but do not connect it to the
Modem yet.
3. Start PC and log in if not already started.
4. Insert the NetComm NB 3 CD into your
CD drive.
5. The NB3 ADSL Ethernet/USB Modem
autorun screen will appear. Click on
“Install NB3 USB Drivers”.
6. The DSL Modem Setup Wizard will then
start. Click on Next> to continue.
7. Click on Accept to agree to the License
Agreement and continue the installation.