Contents
Default Settings & Facts ............................................................................................................... 3
Resetting ................................................................................................................................. 3
Power ...................................................................................................................................... 3
NetComm ADSL Modem Router Quick Start ................................................................................. 4
One page setup for most ADSL services. ............................................................................. 4
Introduction ....................................................................................................................................6
Chapter 1: Getting to know your NetComm ADSL Modem Router ............................................... 8
1-1 What is xDSL .................................................................................................................... 8
1-2 Contents of the NetComm ADSL Modem Router Package .............................................. 8
1-3 Features of the NetComm ADSL Modem Router ............................................................. 8
Chapter 2: Hardware Installation & Setup .................................................................................. 10
2-1 Rear Panel & Connections .............................................................................................. 10
2-2 Front Panel LEDs ............................................................................................................11
2-3 What is a Micro filter for? .............................................................................................. 12
2-3 System Requirements and Setup ................................................................................... 13
Chapter 3: Internet Access ......................................................................................................... 18
3-1 Prepare your network information ................................................................................. 18
3-2 Web-based User Interface ............................................................................................ 19
3-3 Initial Configuration – Setup ............................................................................................20
Chapter 4: Advanced Applications ............................................................................................. 25
4-1 DHCP Configuration ........................................................................................................ 25
4-2 Access Control ............................................................................................................... 25
4-3 Port Forwarding Settings ...............................................................................................28
4-4 Special Application .........................................................................................................29
4-5 Dynamic Routing .............................................................................................................30
4-6 Static Routing .................................................................................................................. 31
4-7 Administration Settings ................................................................................................... 32
4-8 Status Monitor ................................................................................................................. 33
4-9 DMZ Host ........................................................................................................................ 34
4-10 Log ................................................................................................................................ 34
4-11 VPN Passthrough ......................................................................................................... 35
Chapter 5: Macintosh Setup ........................................................................................................ 36
5-1 Hardware Connections .................................................................................................. 36
5-2 Computer Network Configuration ................................................................................... 36
5-3 NetComm ADSL Modem Router Configuration ............................................................... 37
5-4 Adding NetComm ADSL Modem Router to an Existing Network ................................... 37
Chapter 6: Trouble Shooting ....................................................................................................... 38
Hardware .............................................................................................................................. 38
Client Side (Computers) ........................................................................................................ 39
Appendix A: Frequently Asked Questions ................................................................................. 40
Appendix B: Technical Specifications ........................................................................................42
Appendix C: Glossary ................................................................................................................. 43
Appendix D: Registering your NetComm Product ....................................................................... 46
Contact Information ...............................................................................................................46
Product Warranty .................................................................................................................. 46
Limitations of Warranty .........................................................................................................47
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Default Settings & Facts
The following lists the default settings of your NetComm ADSL Modem Router.
Note: It is highly recommended that you enable security settings in the router before
connecting your router to your network.
Router
LAN IP: 192.168.1.1
Username: <none>
Password: admin
WAN port: ADSL only (built inADSL modem)
Resetting
While using or installing your NetComm ADSL Modem Router you may need to utilise the
reset feature. There are two types of reset:
Soft
A soft reset will restart the unit and reconnect to the internet using the settings stored
previously, none of your settings are deleted. To perform a soft reset briefly press the reset
button on the back of the unit.
Hard
A hard reset will return your unit to its factory default setting, meaning that you will loose
all configurations and logs set/stored previously. To perform a hard reset press and hold in
the reset button on the back of the unit for 10 seconds.
Power
Ensure that you only use the Power Adaptor supplied (5V DC, 3amps, Center pole positive)
with your NetComm ADSL Modem Router.
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NetComm ADSL Modem Router Quick Start
The following Quick Start pages are intended to be used by an advanced user to quickly
configure the NetComm ADSL Modem Router. It assumes that you are familiar with TCP/IP
Networking. If you need further explanation please refer to the more detailed sections of this
document. This guide also presumes that your NetComm ADSL Modem Router is set to
factory defaults (See Resetting on previous page if required).
One page setup for most ADSL services.
1. Connect your computer to one of the four LAN ports on the NetComm ADSL Modem
Router and ensure you have a link. Connect your ADSL modem (supplied by your ISP) to
the WAN port of the NetComm ADSL Modem Router.
2. Set the Network Card of your computer to use DHCP or assign it an IP address in the range
of 192.168.1.2 ~ 254.
3. Open a web browser (ensuring that it is set to access the Internet via the LAN not by a dial-
up networking account). Browse to the NetComm ADSL Modem Router's default IP
(192.168.1.1). The main menu of the router should open displaying the “One Page Setup”.
Note: You may be prompted for a log-in, there is no User Name and the Password is
"admin".
4. Change your “WAN Connection Type” to “PPPoE (ADSL)”.
5. Set your “User Name” and “Password” as provided by your ISP.
6. If you wish to make services available to external Internet users, even when you are not
using Internet services from inside your network, you can choose “Keep Alive”.
Alternatively for extra security you can choose “Connect on Demand”.
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7. Click “Apply”. Your NetComm ADSL Modem Routerwill attempt to use your settings to
connect to your ISP. You can check the results on the “Status Monitor” page.
8. If you have a DHCP server already active on your network it is recommended that you
disable either the NetComm ADSL Modem Router's built in DHCP server or the existing
DHCP server. Please note that Microsoft Internet Connection Sharing is a DHCP server.
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Introduction
Congratulations on your purchase of the NetComm ADSL Modem Router. The ADSL Modem
Router is the perfect solution for connecting a small group of computers to a high-speed
Broadband Internet connection or to a remote LAN via an ADSL line. The ADSL Modem
Router supports a maximum downstream data transmission rate of 8Mbps and an upstream rate
of 640Kbps. Configured as a DHCP server, the ADSL Switch Router assigns an IP Address to
every connected computer and acts as the only externally recognized Internet device on your
Local Area Network (LAN). With built-in NAT, the ADSL Modem Router serves as an Internet
firewall, protecting your network from access by outside users and can also be configured to
block internal users’ access to the Internet.
Unlike other routers, which often only share 10Mbps over all of their connections, the
NetComm ADSL Modem Router is equipped with a 4-port 10M/100Mbps auto-sensing
switch, dedicating a possible100Mbps to each and every ethernet connected computer. Not only
will all of your computers be able to enjoy lightning-fast Broadband Internet connections, but
they will also be able to share internal network data at high speed.
With a web-based UI (User Interface), this NetComm ADSL Modem Router is easy to setup
and maintain via web browsers such as Netscape Communicator and Internet Explorer.
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About this Guide
This guide contains information about installing and configuring your NetComm ADSL Modem
Router. It is designed to guide users through the correct setup procedures for both hardware
installation and basic configuration. Later, it shows how to complete advanced configuration to
get the best operating performance from the NetComm ADSL Modem Router.
Chapter 1: Get to know your NetComm ADSL Modem Router
This chapter describes the package contents and provides a list of features of the NetComm
ADSL Modem Router.
Chapter 2: Hardware Installation & Setup
This chapter describes the steps for hardware installation of the NetComm ADSL Modem
Router.
Chapter 3: Internet Access
This chapter describes the steps for basic configuration and start up of the NetComm ADSL
Modem Router.
Chapter 4: Advanced Applications
This chapter describes how to configure advanced functions in order to get the most from your
NetComm ADSL Modem Router.
Chapter 5: Macintosh Setup
This Chapter provides instructions on how to set up Macintosh computers in your network.
Chapter 6: Trouble Shooting
This chapter describes potential problems you may run into and the suggested remedies.
Conventions
The following explains the conventions used throughout this document.
Italics New words, terms, or special emphasis. E.g. Getting to
know your NetComm ADSL Modem Router.
“Boldface” Buttons, checkboxes, or items that you can select from
screens, menus, or dialog boxes. E.g. Click “OK” to restart
Boldface Italics Items in Bold Italics are samples only and you should enter
other names, numbers, or words to substitute.
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Chapter 1: Getting to know your NetComm ADSL Modem Router
This chapter describes the package contents and provides a list of features of the NetComm
ADSL Modem Router.
1-1 What is xDSL
DSL (Digital Subscriber Line) refers to a technology used to increase the data capacity of
standard twisted-pair wires that are generally used to connect most households to the phone
network. In addition, this technology allows simultaneous voice and high-speed data
transmission over a single pair of telephone wires.
There are seven kinds of DSL service, each with its own compromises between speed, distance,
cost, and reliability. These services are either symmetrical (data flows at the same speed in both
directions), or asymmetrical (the downstream capacity is higher than the upstream capacity).
What is ADSL?
Asymmetric Digital Subscriber Line (ADSL), as it’s name indicates, is an asymmetrical data
trasmission technology with higher traffic rates downstream and lower traffic rates upstream. It
is suitable for Internet users because information is usually downloaded more often than
uploaded, such as when surfing the web or downloading files.
1-2 Contents of the NetComm ADSL Modem Router Package
After carefully unpacking the shipping carton, check the contents listed below:
■ NetComm ADSL Modem Router
■ Power Adapter - 5VDC 3A Center Pole Positive
■ This Manual
1-3 Features of the NetComm ADSL Modem Router
Your NetComm ADSL Modem Router contains the following features:
■ Asymmetrical data rates of up to 8,000kbps downstream and 640kbps upstream.
■ Supports ITU G.dmt, ITU G.lite, and ANSI T1.413 issue 2 standards.
■ Integrates four 10/100BASE-T/TX auto-sensing switch ports.
■ Uses NAT to allow all of your network’s computers to connect to the Internet using only
one public IP address.
■ Supports PPPoE to connect to ISPs.
■ Built-in web-based user interface for easy configuration and management through common
web browsers like Netscape or Internet Explorer.
■ Supports DHCP client to use either a dynamic IP Address or a fixed IP Address from your
ISP.
■ Built-in DHCP server to automatically assign and manage LAN IP addresses.
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■ Allows administrators to block specific LAN users from accessing specified applications or
services.
■ Allows external Internet users to access information from an internal computer (Virtual
Server or Port Forwarding).
■ Provides unrestricted two-way communication between one computer on your LAN and
certain Internet services like conferencing, video and gaming applications.
■ Enhances routing performance by using Dynamic or Static routing.
■ Allows administrators to change WAN MAC address.
■ Compatible with all popular Internet applications.
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Chapter 2: Hardware Installation & Setup
This chapter provides information about your NetComm ADSL Modem Router’s physical
features and gives step-by-step installation instructions.
2-1 Rear Panel & Connections
The following figure shows the rear view of the NetComm ADSL Modem Router and illustrates
how the cables connect to the interfaces on the rear panel.
■ Plug one end of the UTP cable into the WAN port, the other into the the other into the wall
jack that is connected to the ADSL service.
■ Connect a computer, with a Network Interface Card installed, to one of the four LAN Ports.
■ Connect the external power supply to the NetComm ADSL Modem Router.
■ Port 4 can cascade to another network device (usually a hub or switch). Make sure the slide
switch is in “X” mode when connecting to an MDI-X port.
■ The Reset button is used to reboot the device - press once quickly, or for clearing
configuration settings back to factory default values - press for longer than 3 seconds.
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2-2 Front Panel LEDs
The following figure shows the front view of the NetComm ADSL Modem Router.
The LEDs on the front panel indicate the status of the unit.
Power: Green On when power is on.
Diag: Red Lights up during system check when the power is initially
connected. If the Router is working properly, the light should
switch off after the diagnostic has been completed.
ADSL port
Link: Green Blinking when ADSL line is training.
On when ADSL line is ready.
Activity: Yellow Blinking when data is being received/transmitted through ADSL
line.
LAN ports
Link/ACT: Yellow On when link is up and operating at 10Mbps.
Green On when link is up and operating at 100Mbps.
Yellow/ Green Blinking when data is being received/transmitted through the
LAN port.
FD/COL: Green On when operating at full duplex mode (10/100M).
Blinking when a collision is occurring on the port.
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2-3 What is a Micro filter for?
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 Router 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 not sure.
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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2-3 System Requirements and Setup
To connect to the Internet, an ADSL enabled phone line and an Internet access account from an
ISP are required. In order to operate with the ADSL Modem Router, each computer that is to be
connected to the ADSL Modem Router should have the following items installed:
1. Ethernet NIC (Network Interface Card: a 10Base-T or 10/100Base-T/TX Ethernet card).
2. Standard twisted-pair Ethernet cable (UTP network cable) with RJ-45 connectors.
3. System OS: Windows 95, Windows 98, Windows NT4.0, Windows 2000, Windows Me,
Windows XP, or Macintosh
4. TCP/IP network protocol.
5. Web browser, such as Microsoft Internet Explorer or Netscape Navigator.
Installing the TCP/IP Protocol in Windows
If you are not sure whether the TCP/IP Protocol has been installed, follow these steps to check,
and if necessary, install TCP/IP onto your computer.
1. Click the “Start” button. Choose “Settings”, then “Control Panel”.
Double-click the “Network” icon. Your Network window should appear.
Select the “Configuration” tab.
Note: For Windows 2000 & Windows XP the settings can be reached by
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Click the “Local Area Connection” icon on the right bottom side of your
desktop screen.
In the “Local Area Connection Status” window, click “Properties” button then
your Network window will appear.
2. Check whether the TCP/IP Protocol has already been installed and bound to your Network
Interface Card.
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- If yes, go to step 7.
- If no, click the “Add” button.
3. Double-click “Protocol” on the Select Network Component Type or highlight “Protocol”
then click “Add”.
4. Highlight “Microsoft” under the list of manufacturers.
Double-click “TCP/IP” from the list on the right or highlight “TCP/IP” then click “OK” to
install TCP/IP.
5. After a few seconds, you will be brought back to the Network window. The TCP/IP
Protocol should now be on the list of installed network components (refer to point 2).
6. Click the “Properties” button.
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The TCP/IP Properties window consists of several tabs. Choose the “IP Address” tab.
7. Select “Obtain an IP address automatically”. Click “OK”. Restart your computer to
complete the TCP/IP installation.
Fixed IP Addresses Configuration
Fixed IP addresses may be assigned to network devices for many reasons, such as the server
computers or printers which are consistently accessed by multiple users. To set up computers
with fixed IP Addresses, go to the “IP Address” tab of the “TCP/IP Properties” window as
shown above.
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1. Select “Specify an IP address” and enter “192.168.1.***” in the “IP Address” location
(where *** is a number between 2 and 254 used by the NetComm ADSL Modem Router to
identify each computer), and the default “Subnet Mask” 255.255.255.0”.
Note: No two computers on the same LAN can have the same IP address but they
should have the same Subnet Mask.
2. Select “Enable DNS” in the “DNS Configuration” tab and enter the “DNS IP Address”
obtained from your ISP in the “Server Search Order” location. Click “OK”.
3. Click “Gateway” tab and enter the NetComm ADSL Modem Router’s default gateway
value 192.168.1.1 in the “New gateway” field, then click “Add” Button. Click “OK”.
Restart your computer to complete the TCP/IP installation.
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Chapter 3: Internet Access
This chapter describes the procedures necessary to configure the basic functions and to start up
your NetComm ADSL Modem Router. On successful completion of these procedures, you will
be able to access the Internet via your NetComm ADSL Modem Router.
3-1 Prepare your network information
When setting up your NetComm ADSL Modem Router, in order to allow a quick reference
point, it is suggested you complete the table below with the necessary information which should
be supplied by your ISP:
Provided by some ISPs (
Host Name: ______________________________________
Domain Name: ______________________________________
WAN/Public IP address given by ISP:
❒
Dynamic
✓ tick indicates common minimal requirements)
✓
❒ Static
IP Address: _________._________._________._________
Subnet Mask: _________._________._________._________
Default Gateway: _________._________._________._________
DNS Server Primary:
DNS Server Secondary: _________._________._________._________
DNS Server Third: _________._________._________._________
VPI and VCI values:
VPI:
VCI: ✓ ______________________________________
Working mode:
❒
✓ ______________________________________
Gateway using LLC Encap with Dynamic IP.
✓ _________._________._________._________
✓
❒ Gateway using LLC Encap with Static IP.
❒ Gateway using Classical IP
❒ Gateway using PPPoE
❒ Gateway using PPPoA
❒ Router using Classical IP
❒ Modem using LLC Encaps.
PPP authentication:
Login Name:
Password:
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✓ ______________________________________
✓ ______________________________________
3-2 Web-based User Interface
The NetComm ADSL Modem Router is designed to use a Web-based User Interface for
configuration. Start your web browser and type http://192.168.1.1 in the browser’s address box.
This address is the factory default IP Address of your NetComm ADSL Modem Router. Press
“Enter”.
The “Username and Password Required” prompt box will appear. Leave the “User Name”
empty and type “admin” (default password) for the “Password”. Click “OK”. The setup
screen will load.
Note: The password can be reset by restoring the factory defaults with the Reset
button.
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3-3 Initial Configuration – Setup
The “OnePage Setup” screen is the first screen you will see when you access the router’s
configuration. If the router has already been successfully installed and set up, this screen’s
values will already be properly configured. Below is a description of each setting.
■ Host Name This entry is required by certain ISPs.
■ Domain Name This entry is required by certain ISPs.
■ Private IP Address The Device IP Address and Subnet Mask of the router are used by the
internal LAN. The default values are 192.168.1.1 for IP Address and 255.255.255.0 for
Subnet Mask.
■ VC Setting Enter the VPI and VCI values provided by your ISP. As for the Operation
Mode, this ADSL Switch Router supports “ANSI T1.413”, “G.dmt”, and G.lite. You can
choose one of those modes from the pop-down list if you exactly know which mode your
ISP used. Otherwise, leave it as default setting, “Auto”.
WAN Connection Type
WAN Connection type is the way the ADSL Switch Router works with DSLAM equipped in
your ISP side. This ADSL Switch Router supports seven connection types listed as below:
■ Gateway using LLC Encaps. (Dynamic IP)
■ Gateway using LLC Encaps. (Static IP)
■ Gateway using Classical IP
■ Gateway using PPPoE
■ Gateway using PPPoA
■ Router using Classical IP
■ Modem using LLC Encaps.
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Gateway, Router and Modem are different working modes that the ADSL Switch Router can use.
It is highly recommend that you use the Gateway mode, which is NAT enabled. It not only
allows LAN users to share a single IP Address, but also protects your LAN network from
outside intruders. If the ADSL Switch Router is set to the Router mode or the Modem mode, all
the PCs in the LAN will have to be assigned fixed IP Addresses. The Router mode allows users
to specify which routing path data packets should take. If setting to the Modem mode, the
Public IP Address setting is not necessary.
LLC Encaps, Classical IP, PPPoE, and PPPoA are different connection modes that are different
protocols of making the initial session between your ADSL Switch Router and ISP’s equipment.
Your ISP may provide the information that which connection mode you should set. If you don’t
know which one to choose, you have to call your ISP to get this information.
Gateway using LLC Encaps. (Dynamic IP)
This connection type is the default setting of this ADSL Switch Router. Choose this setting if:
1. You want to employ NAT to share Internet access for all of your computers, as well as
protect them for outside intruders.
2. Your ISP uses LLC Encapsulation and DHCP to assign IP addresses when you connect. (LLC
encapsulation allows multiplexing of multiple protocols over a single ATM virtual connection
(VC). You can find more information in the RFC 2684 standard.)
Gateway using LLC Encaps. (Static IP)
Choose this setting according if :
1. You want to employ NAT to share Internet access for all of your computers, as well as
protect them for outside intruders.
2. Your ISP uses LLC Encapsulation and provides you with one or more IP addresses when
you apply for the service. You can find more information in the RFC 2684 standard.
■ Specify WAN IP Address Enter one IP address provided by your ISP.
■ Subnet Mask Enter the subnet mask values provided by your ISP.
■ Default Gateway IP Address Your ISP will provide you with the Default Gateway IP
Address.
■ Domain Name Server (DNS) Your ISP will provide you with at least one DNS IP
Address. Multiple DNS IP settings are common. The first available DNS entry is used in
most cases.
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Gateway using Classical IP
Choose this setting to meet the following conditions:
1. You want to employ NATto share Internet access for all of your computers, as well as
protect them for outside intruders.
2. Your ISP uses Classical IP connection type (use LLC encapsulation and routing protocol)
and provides you with one or more IP addresses when you apply for the service. You can
find more information in the RFC 2684 standard.
■ Specify WAN IP Address Enter the IP address provided by your ISP.
■ Subnet Mask Enter the subnet mask values provided by your ISP.
■ Default Gateway IP Address Your ISP will provide you with the Default Gateway IP
Address.
■ Domain Name Server (DNS) Your ISP will provide you with at least one DNS IP
Address. Multiple DNS IP settings are common. The first available DNS entry is used in
most cases.
Gateway using PPPOE
Choose this setting if:
1. You want to employ NAT to share Internet access for all of your computers, as well as
protect them for outside intruders.
2. Your ISP uses PPPoE as connection mode. You can find more information in the RFC 2516
standard.
■ User Name Enter the user name your ISP provide to you.
■ Password Enter the password your ISP provide to you.
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■ Connect-on-demand Is a utility to trigger the PPPoE session to connect if in a disconnected
status when Internet access is being attempted. Choose “Enable” to make this function
active, and enter the number of minutes you wish to wait after network idle time in the
“Max Idle Time” location. This function is for PPPoE only.
■ Keep Alive This function keeps your PPPoE connection always on even during a period of
no WAN activity. In some situations the PPPoE session can not be restored immediately
after disconnection because the ISP’s system may need time to restore. Check with your ISP
to ascertain how much time is required before the router starts to re-build the PPPoE session
and enter this into the “Redial Period” field.
Gateway using PPPOA
Choose this setting if:
1. You want to employ NAT to share Internet access for all of your computers, as well as
protect them for outside intruders.
2. Your ISP uses PPPoA as its connection mode. You can find more information in the RFC
2684 standard.
■ User Name Enter the user name your ISP provide to you.
■ Password Enter the password your ISP provide to you.
■ Connect-on-demand Is a utility to trigger the PPPoA session to connect if in a
disconnected status when Internet access is being attempted. Choose “Enable” to make this
function active, and enter the number of minutes you wish to wait after network idle time in
the “Max Idle Time” location.
■ Keep Alive This function keeps your PPPoA connection always on even it sites idle.
However, in some situation, PPPoA session can not be built immediately after disconnection
because the system on ISP site may need a little time to restore. You may need to check your
ISP to get the information that how much time it need to wait before the router start to rebuild the PPPoE session and fill it in the “Redial Period”.
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Router using Classical IP
Choose this setting if:
1. You want this device acting as a router without NAT function.
2. Your ISP uses Classical IP connection type (use LLC encapsulation and routing protocol)
and provides you one or more IP addresses when you apply for the service. You can find
more information in the RFC 2684 standard.
■ Specify WAN IP Address Enter the IP address provided by your ISP.
■ Subnet Mask Enter the subnet mask values provided by your ISP.
■ Default Gateway IP Address Your ISP will provide you with the Default Gateway IP
Address.
■ Domain Name Server (DNS) Your ISP will provide you with at least one DNS IP
Address. Multiple DNS IP settings are common. The first available DNS entry is used in
most cases.
Note: You have to set public IP address for each of your LAN PCs if you select this
connection type.
Modem using LLC Encaps.
Choose this setting if:
1. You want this device acting as an ADSL modem. (i.e. when being plugged into another
broadband router or a PC running your ISP’s software)
2. Your ISP uses LLC encapsulation.
Your ISP may use DHCP to provide IP address or provide you one or more IP addresses, as
well as asking use PPPoA or PPPoE connection modes when you apply for the service.
However, as you choose to make this device act as an modem, you have to know how to
configure your computers.
When you have properly configured the Setup page, click “Apply”. Your Router will then
attempt to connect to the Internet. If you experience problems, please refer to the trouble
shooting section in Chapter 6 before contacting NetComm Technical Support.
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Chapter 4: Advanced Applications
This chapter provides information on how to set up and use the advanced features of your
NetComm ADSL Modem Router.
4-1 DHCP Configuration
A DHCP (Dynamic Host Configuration Protocol) Server can automatically assign IP Addresses
to each computer in your network. Unless you already have a DHCP Service on your LAN, it is
highly recommended that you set your router to act as a DHCP server.
Note: The DHCP Server can support a maximum pool of 253 IP Addresses.
■ Dynamic IP Address Select “Enable” to set your Router to act as a DHCP server. If you
already have a DHCP server on your network, set the router’s DHCP option to “Disable”.
■ Starting IP Address Enter a numerical value, from 2 to 254, for the DHCP server to start at
when assigning IP Addresses.
■ Number of Users Enter the maximum number of computers that you want the DHCP
server to assign IP Addresses to, with the absolute maximum being 253.
■ DNS1, 2, 3 Enter the DNS numbers you wish to be assigned to DHCP clients.
■ WINS Enter the WINS number you wish to be assigned to DHCP clients.
■ DHCP Clients Table Click the DHCP Clients Table button to show current DHCP client
information.
4-2 Access Control
The Access Control feature allows administrators to block certain users from accessing the
Internet or specific applications. Before using this function, the network computers which you
want to control the access limitation should be assigned fixed IP Addresses.
IP Access Setting
Network administrators can restrict access of up to five groups of specified network users/
computers.
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■ Protocol Select the protocol type as “TCP” or “UDP” from the drop down box. If you are
not sure which one to choose, select “Both”.
■ Filter Group/LAN IP Range Enter the range of IP addresses which you want to have the
same access limitation (a group).
■ Block Port Range Enter the range of port numbers which are used by the applications you
wish to be blocked. (For example 23 for Telnet)
Here is an example for IP Access Setting. Enter the range of 51~80 in the “Filter Group”
column and 20~80 in the “Block Port Range” column, then click the “Apply” button. As a
result, the user’s computers which have IP Addresses in the range of 192.168.1.51 to
192.168.1.80 will not be able to use the applications which use port numbers from 20 to 80,
such as FTP, Telnet and web browsing.
URL Access Settings
To change to URL Access Settings, select from the menu at the top of the page.
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This function allows network administrators to restrict access to listed URLs or give access
ONLY to listed URLs.
■ URL Access Limit Check “Enable” or “Disable” to make this function active or inactive.
■ Website Access Check “Allow” to allow users on the network to access a specific website
listed on the location only. In contrast, to restrict users on the network access to the
websites listed, check “Block” in this item.
■ URL List Enter the website addresses to be accessed/blocked in the locations field. Up to
twenty website addresses can be entered.
■ Show URL Log allows network administrators to check the URL access records. Click the
button of “Show URL Log” to go to the URL Filter Log table. This table lists the users/
computers by their IP Addresses, the access status, and their URL Access destinations.
Private MAC Filter
This function allows network administrators to insert the MAC addresses that need to be
managed.
■ Filtered MAC Address There are fifty sets divided into five groups of ten in this function.
You can choose each group by selecting from the drop-down list. Enter the MAC addresses
of the computers you wish to block in the columns, and then those users/computers cannot
access Internet at all.
Click “Apply” after making any changes.
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4-3 Port Forwarding Settings
The Port Forwarding Settings application allows you to set up to ten public ports, such as a
HTTP (web), SMTP (email), FTP, etc. that can be accessed by external users of the Internet.
Each service is forwarded to a dedicated network computer (server) configured with a fixed LAN
IP Address. Although the internal service addresses are not directly accessible to the external
user, the NetComm ADSL Modem Router is able to redirect requests to the appropriate internal
IP Address/server. To use this application, it is recommended you use a fixed Public IP Address
from your ISP.
Note: Your NetComm ADSL Modem Router supports only one forward to one IP
Address for each port (service).
■ Set up individual network computers to act as servers and configure each with a fixed IP
Address.
■ In the “One Page Setup” screen, ensure the “Private IP Address” is set to the NetComm
ADSL Modem Router’s default setting of 192.168.1.1. If a fixed Public IP Address is to be
used, select “Specify an IP address” and enter the IP Address and other necessary
information provided by your ISP.
■ Incoming Ports - Enter the desired service port numbers in the “Ports” fields. You can
specify the protocol type as “TCP” or “UDP” from the drop-down list. If you are not sure
which one to select, choose “Both”. A selection of commonly used port numbers is
provided on the right of this screen.
■ Redirect IP Address - Enter the appropriate IP Addresses of the service computers in the
“Redirect IP Address” locations.
Example: If the service port number 80~80 (representing an HTTP web address) is entered in
“Ports” and 192.168.1.100 is entered in “Redirect IP Address”, then all HTTP requests from
external Internet users will be directed to port 80 of the computer/server with the 192.168.1.100
fixed IP Address.
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Here is a list of the protocols and port ranges that are used by some common applications.
Note: Port 8080 on the Public IP Address is used for Remote Management and can
not be redirected if remote management is enabled.
Application Protocol Port Range
FTP Server TCP 21
Half Life UDP 6003, 7002, 27010, 27015, 27025
MSN Messenger TCP 6891-6900 (File-send)
TCP 1863
UDP 1863
UDP 5190
UDP 6901 (Voice)
TCP 6901 (Voice)
PC Anywhere host TCP 5631
UDP 5632
Quake 2 UDP 27910
Quake III UDP 27660 (first player)
Telnet Server TCP 23
Web Server TCP 80
”C:\Program Files\Quake III
Arena\quake3.exe” +set net_port 27660
27661 (second player)
4-4 Special Application
Some applications use multiple TCP/UDP ports to transmit data. Due to the use of NAT in the
router, these applications may not work. Port Triggering allows these applications to work
properly.
Note: Only one computer can use each Port Triggering setting at any time.
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■ Application Name Enter the name of the application you wish to configure in the
Application Name column to identify this setting. This is just a label and does not govern
the function of the settings.
■ Outgoing Port Range Enter the port number or range of numbers this application uses
when it sends packets outbound. The Outgoing Control port numbers act as the trigger.
When the NetComm ADSL Modem Router detects the outgoing packets with these port
numbers, it will allow the inbound packets with the Incoming Port Numbers that you set in
the next column to pass through the NetComm ADSL Modem Router.
■ Incoming Control Enter the port number or range of numbers the inbound packets carry.
Click “Apply” after making any changes.
Followings are port numbers list of some popular application:
Application Outgoing Control Incoming Data
Battle.net 6112 6112
DialPad 7175 51200, 51201,51210
ICQ 4000 4000
ICU II 2019 2000-2038, 2050-2051, 2069,
IRC 6667 531, 6666, 6667
MSN Gaming Zone 47624 2300-2400, 28800-29000
PC to Phone 12053 12120,12122, 24150-24220
Quick Time4 554 6970-6999
wowcall 8000 4000-4020
2085,3010-3030
4-5 Dynamic Routing
The Dynamic Routing feature allows your NetComm ADSL Modem Router to exchange routing
information with other routers in the network. Enabling this feature is likely to enhance
performance of your NetComm ADSL Modem Router.
■ TX From the drop-down list, select one of the routing information types, “RIP-1”, “RIP-1
Compatible”, or “RIP-2”, to enable the “TX” (transmit) function. “RIP-1” is the protocol
used by older routers and newer routers should use “RIP-2”. “RIP-1 Compatible” serves to
broadcast RIP-1 and multicast RIP-2.
■ RX From the drop-down list, select one of the routing information types, “RIP-1” or “RIP-
2”, to enable the “RX” (receive) function.
Click “Apply” after making any changes.
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4-6 Static Routing
The Static Routing feature allows computers that are connected to the NetComm ADSL Modem
Router directly or through a hub/switch (on the immediate LAN) to communicate with other
computers in the respective LAN segment which are connected to the NetComm ADSL Modem
Router through another router (destination LAN). Up to 20 route entries may be entered into
the NetComm ADSL Modem Router. The diagram below gives an example of the physical
connections required to use Static Routing.
In the above diagram, PC2 in LAN#2 is connected to the NetComm ADSL Modem Router via
another router while PC1 in LAN#1 is connected to the NetComm ADSL Modem Router
directly. Without configuring the Static Routing function, the two computers would not be able
to communicate with each other.
■ Select Route entry Select the route entry number from 1 to 20 that you wish to configure.
■ Destination LAN IP and Subnet Mask Enter the IP Address and Subnet Mask of the
destination LAN that the immediate LAN is to communicate with. Taking the above diagram
as an example, enter 192.168.2.0 in the “Destination LAN IP” field and 255.255.255.0 in
the “Subnet Mask” field.
■ Default Gateway Enter the IP Address of the router that forwards data packets to the
destination LAN. For the above example, enter 192.168.1.2 in the “Default Gateway” field.
■ Hop Count Enter the number of hops required between the LANs to be connected. The
Hop Count represents the “cost” of the routing transmission. The default value is 1.
■ Interface Choose “LAN” if the Destination LAN is on your Router’s LAN side and choose
“WAN” if the Destination LAN is on the Router’s WAN side.
Referring back to the above diagram, with proper setting, PC1 would be able to access LAN 1,
LAN 2 and the Internet while PC2 can only access LAN 2 and LAN 1.
Click “Apply” after making any changes.
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4-7 Administration Settings
This feature allows the administrator to manage the NetComm ADSL Modem Router by setting
certain parameters. For security reasons, it is strongly recommended that you set a Password
and SNMP communities so that only authorized persons are able to manage your NetComm
ADSL Modem Router. If the “Password” is left blank, all users on your network can access the
router simply by entering the unit’s IP Address into their web browser’s location window.
■ Firmware Version This field shows the installed version of the firmware.
■ Administrator Password Enter the password you want to use into the “Password
Change” field and re-enter it into the “Password Confirm” field for confirmation. Be sure
that the password is less than 64 characters long and without any spaces.
■ WAN MAC Change The WAN MAC address can be changed from the original values if
necessary. Some ISPs require users to change the WAN MAC address to a registered one
when users change their access equipment.
■ External Admin Check “Enable” to allow you to configure the NetComm ADSL Modem
Router from WAN side. To access the setting page from external side, enter “http://<WAN
IP Address>:8080” into the web browser address column and press the “Enter” key.
■ MTU Check “Enable” if you want to set the limitation of maximum packet size incoming
and outgoing the router. Enter the maximum packet size you wish to set in the “Size”
column. This can assist with the transmission of emails with attachments, etc.
■ Reset Device Select “Yes” if you want to clear connections, reboot, and re-initialize the unit
without affecting any of your configuration setting.
■ Factory Defaults Select “Yes” if you want to return all the router’s current settings to their
factory default settings.
Note: Do not restore to the factory defaults unless it is absolutely necessary.
Click “Apply” to make any changes.
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4-8 Status Monitor
This screen shows the router’s current status. All of the information provided is read-only.
■ Login This column shows the login information of your WAN connection. You can manually
initiate a connection or a disconnection by clicking the buttons. However, if you initiate
disconnection here, the “Connect-on-Demand” will not function until the connection
button is clicked. Note that the Login won’t show any information if you select “Obtain IP
automatically” or “Static IP” in the “OnePage Setup” page.
■ WAN (Internet) This section shows the IP settings status of the router as seen by external
users of the Internet. If you select “Get IP Address Automatically”, “PPPoE”, or “PPTP”
in OnePage Setup, the “ IP Address”, “Subnet Mask”, “Default Gateway”, and “Domain
Name Server” (DNS) will show the information received from the DHCP server or ISP
currently being used. If you select “ Static IP” in the “One Page Setup: Public IP
Address”, the information will be the same as your input.
DHCP Release: Click this button to eliminate the IP address obtained from the DHCP
server.
DHCP Renew: Click this button to re-acquire the IP address from the DHCP server.
Note: The “DHCP Release” and “DHCP Renew” button only show up when you
select “Get IP Address Automatically” in the OnePage Setup.
■ LAN (Local) This section displays the current “Private IP Address” and “Subnet Mask”
of the router, as seen by users of your internal network.
■ DHCP Clients Table If the router is setup to act as a DHCP server, the LAN side IP
Address distribution table will appear when this button is selected.
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4-9 DMZ Host
The DMZ Host application allows unrestricted 2-way communication between a single LAN
computer and other Internet users or servers. This application is useful for supporting specialpurpose services such as video-conferencing and gaming, which require proprietary client
software and/or unrestricted 2-way user communication. To use this application, you should
have a fixed Public IP Address from your ISP.
Note: In order to provide unrestricted access, the Firewall provided by the NetComm
ADSL Modem Router to protect this port is disabled, thus creating a
potentially serious security risk. It is recommended that this application
should be disabled when it is not in use by entering “0” in the “DMZ Host”
field.
1. Before setting up a LAN computer to act as a DMZ Host, configure it with a fixed IP
Address.
2. In the “One Page Setup” screen, ensure the Private IP Address is set to the NetComm
ADSL Modem Router’s default setting of 192.168.1.1. In the Public IP Address area, select
“Specify an IP Address”, then enter the IP Address and other necessary information
provided by your ISP.
3. Click “DMZ Host” from the Advanced Menu. Enter the fixed IP Address of the Exposed
Host computer in the “DMZ Host” IP Address location. Remember, entering “0” will
disable this application.
4. Click “Apply”.
4-10 Log
The Log application allows the administrator to trace Internet access. You can send the record to
specific LAN computers for remote monitoring, but can also watch the incoming (WAN to
LAN) and outgoing (LAN to WAN) traffic in the “Log Settings” page.
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■ Access Log Set to Enable if you want to activate this function.
■ Send Log To Enter the IP address of the computer that you want to send the Log
information to.
■ Incoming Access log Click this button to go to the incoming (WAN to LAN) traffic log
table. This Table records information on the last fifty incoming packets, including source IP
address, destination IP address, and port number.
■ Outgoing Access log Click this button to go to the outgoing (LAN to WAN) traffic log
table. This Table records information on the last fifty outgoing packets, including source IP
addresses, destination IP addresses, and port numbers.
Click “Apply” after making any changes.
4-11 VPN Passthrough
Virtual Private Networking (VPN) is a system which allows remote networks to privately
exchange data over an existing public network (usually the Internet). One VPN client can be
used to make one VPN connection (Tunnel) to a VPN Server on the Internet. The NetComm
ADSL Modem Router supports one single session VPN Passthrough (PPTP or L2TP/IPSec).
There is no configuration necessary for VPN Passthrough.
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Chapter 5: Macintosh Setup
This chapter provides information on using Macintosh computers in your network. The
instructions given here are for system software version 8.0 or above, which comes with the
TCP/IP Protocol preloaded and supports DHCP Addressing.
5-1 Hardware Connections
Connect your Macintosh computer to your NetComm ADSL Modem Router. If you have a
newer computer, there will be a 10Base-T Ethernet port on the back. Older computers will need
to have an Ethernet card installed. Refer to your computer’s User Manual for instructions on
Ethernet card installation.
5-2 Computer Network Configuration
It is assumed that your computer’s system software already has TCP/IP installed. You may
manually configure your computer with a fixed IP Address (for example 192.168.1.2) or have an
IP Address dynamically assigned to it by the NetComm ADSL Modem Router’s DHCP server.
5-2.1 Dynamic IP Addressing using DHCP Server.
1. From the “Apple” menu, select “Control Panel” and click on “TCP/IP”.
2. In the “TCP/IP (A New Name For Your Configuration)” window, select “Ethernet” in
the “Connect via” location from the drop-down list.
3. In the “Setup” area:
- Select “Using DHCP Server” in the “Configure” location from the drop-down list.
- No other data needs to be entered.
- Close the window.
4. Click “Save” from the file menu, then “Quit” TCP/IP.
5. Restart the computer.
5-2.2 Manual Configuration of Fixed IP Addresses
1. From the “Apple” menu, select “Control Panel” and click on “TCP/IP”.
2. In the “TCP/IP (A New Name For Your Configuration)” window, select “Ethernet” in
the “Connect via” location from the drop-down list.
3. In the “Setup” area:
- Select “Manually” in the “Configure” location from the drop-down list.
- In the “IP Address” location, enter the IP Address that you want to assign to the
computer (for example 192.168.1.2) .
- Enter “255.255.255.0” in the “Subnet Mask” location.
- Enter “192.168.1.1” (the NetComm ADSL Modem Router’s default IP Address) in the
“Router Address” location.
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- Enter the ISP’s IP Address in the “Name Server” location if your ISP has provided the
information. (This is the DNS address provided by your ISP.)
- Close the window.
4. Click “Save” from the file menu then “Quit” TCP/IP.
5. Restart the computer.
5-3 NetComm ADSL Modem Router Configuration
To configure your NetComm ADSL Modem Router, launch your Web Browser and follow the
instructions given in Chapter 3: Internet Access, section 3.3.
5-4 Adding NetComm ADSL Modem Router to an Existing Network
If the NetComm ADSL Modem Router is to be added to an existing Macintosh computer
network, the computers will have to be configured to connect to the Internet via the NetComm
ADSL Modem Router.
1. From the “Apple” menu, select “Control Panel” and click on “TCP/IP”.
2. From the “File” menu, select “Configurations” and select your existing network
configuration. Click “Duplicate”.
3. Rename your existing configuration. Click “OK”, and “Make Active”.
4. In the Setup area:
- Select “Manually” in the “Configure” location from the drop-down list.
- In the “IP Address” location, enter the IP Address that you want to assign to the
computer (for example 192.168.1.2) .
- Enter “255.255.255.0” in the “Subnet Mask” location.
- Enter “192.168.1.1” (the NetComm ADSL Modem Router’s default IP Address) in the
“Router Address” location.
- Enter the ISP’s IP Address in the “Name Server” location if your ISP has provided the
information.
- Close the window.
5. Click “Confirm”. TCP/IP is now configured for manual IP Addressing.
6. Configure your NetComm ADSL Modem Router (see 5.3 above).
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Chapter 6: Trouble Shooting
This chapter provides solutions to problems you may encounter during installation and
operation of your NetComm ADSL Modem Router.
Hardware
T: The Power LED is off.
Check the power cable is properly connected to the NetComm ADSL Modem Router, the
power adapter and the socket.
T: The LAN Link LED is off.
Check the computer, hub or switch is properly connected to the NetComm ADSL Modem
Router.
Check the computer’s Ethernet card is properly installed.
Check the UTP cable connecting the computer to the Router is connected. This cable should
not be a crossover cable.
T: The DIAG LED stays lit.
The DIAG LED should light up when the device is first powered up to indicate it is checking for
proper operation. After a few seconds, the LED should go off. If it stays on, the device is
experiencing a problem. Please contact your dealer.
T: Why can’t I configure the NetComm ADSL Modem Router?
First, check whether the NetComm ADSL Modem Router is properly installed or not, including
the LAN and WAN connections, and all devices’ power.
Next, check the IP configuration of your computer :
■ For Windows 95/98 users: run Winipcfg.exe or Winipcfg from “Run” on the “Start”
menu. If there are no IP addresses, click “Release All” and then click “Renew All” to get
an IP address.
For Windows NT 4.0/2000/XP users: Open a command prompt and run IpConfig.
■ Ensure that your computer and the NetComm ADSL Modem Router are on the same
network segment. If you are not sure, initiate the DHCP function and let the computer get an
IP address automatically from the router.
■ Ensure that your computer is using an IP Address within the range 192.168.1.2 to
192.168.1.253 and thus compatible with the NetComm ADSL Modem Router’s default IP
address of 192.168.1.1
■ Finally, use Ping command in MS-DOS mode to verify the network connection:
■ Ping 127.0.0.1 to check the TCP/IP stack of your computer.
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■ Ping the Router’s IP address (Default: 192.168.1.1) to check for IP connectivity between
your computer and the Router.
Note: If you are not able to get to the web configuration screen for the NetComm
ADSL Modem Router, make sure that you disable the proxy setting within your
Internet browser and set your browser to access the Internet via the LAN.
T: What can I do if I have forgotten the password for NetComm ADSL Modem Router?
You have to reset the Router back to its factory default setting by pushing the Reset button for
over 3 seconds.
Note: You will lose all previous settings.
T: I cannot access my ISP’s home page, why?
Some ISPs (such as Telstra BigPond) require their host name be specifically configured into your
computer before you can surf their local web pages. If you are unable to access your ISP’s home
page, enter your ISP’s Domain Name into the OnePage Setup (3-3) to enable all computers in
your LAN to access it. If you only want to allow computers to access these home pages, open
the TCP/IP Properties window (2-4) on these computers, click open the “DNS
Configuration” tab and enter your ISP’s Domain Name in the “Domain Name Search
Suffix” location.
Client Side (Computers)
T: I can’t browse the Internet via the NetComm ADSL Modem Router
Ensure your computer can ping or access the Router. See the previous section entitled “Why
can’t I configure the NetComm ADSL Modem Router” for more information.
Check the status page of the Router to ensure connection to your ISP has been established.
T: I get a time out error when I enter a URL or IP address.
Check if other computers on the LAN are experiencing the same problem. If not, ensure the
computer’s IP settings are correct (IP Address, Subnet Mask, Gateway IP Address and DNS).
Check the NetComm ADSL Modem Router’s settings are correct (3-3).
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Appendix A: Frequently Asked Questions
Q: What is the maximum number of IP Addresses the NetComm ADSL Modem Router
can support?
The NetComm ADSL Modem Router can support up to 253 IP Addresses in the range of
192.168.1.2~192.168.1.254.
Q: Where should the NetComm ADSL Modem Router be installed on the network?
In a typical environment, the NetComm ADSL Modem Router should be installed between the
ISP and your LAN. Connect the NetComm ADSL Modem Router to the phone jack which
supplies the ADSL signal, and connect your computers to the RJ45 jack on the LAN side.
Q: Does the NetComm ADSL Modem Router support IPX or AppleTalk?
No. The NetComm ADSL Modem Router was designed to provide a multiple user LAN with
shared Internet access and supports only the TCP/IP Protocol. If your Novell or Apple system
is configured with TCP/IP, the NetComm ADSL Modem Router can support them.
Q: Does the NetComm ADSL Modem Router support 100Mb Ethernet?
Yes, the NetComm ADSL Modem Router supports both 10Mb & 100Mb Ethernet on the LAN
side, but only 10Mb on the WAN side.
Q: What is “NAT” and what is it used for?
The Network Address Translation (NAT) Protocol translates multiple IP Addresses on a
private LAN into a single public IP Address that is accessible to the Internet. NAT not only
provides the basis for multiple IP Address sharing but also provides security, since the multiple
IP Addresses of LAN computers are never transmitted directly to the Internet.
Q: How can NetComm ADSL Modem Router share single user account to multiple
users?
The NetComm ADSL Modem Router combines the following technologies to enable this
function.
NAT (Network address translation): NAT is a technology which can create a private network
domain behind a public IP. It is usually used as a firewall. It can also be used when there are not
enough IP Addresses.
DHCP (Dynamic host configuration protocol): DHCP is a protocol to assign IP Addresses to
internal computers automatically. It can save a lot of IP Address configuration. This protocol is
supported by Windows 95/NT, Mac OS, and many other popular OS.
DNS (Domain name service): DNS is a protocol which translates Domain Names to IP
addresses that an Internet host can handle. Addressing system using Domain names, like
www.yahoo.com, is easier to use than its IP address, 204.71.177.70.
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Q: What operating systems does NetComm ADSL Modem Router series support?
The NetComm ADSL Modem Router uses standard TCP/IP protocol. It can be operated as
long as you have TCP/IP protocol installed on your operating system (For example: Windows
9x, Windows NT, Windows 2000, Windows XP, etc.)
Q: Can I use multiple E-mail accounts if I use NetComm ADSL Modem Router?
Yes, you can. Some people think having one Internet account means that they can have only one
E-mail account. However, E-mail is set by mailbox accounts and different to the account you use
to connect to your ISP. If you want more E-mail accounts, you can contact with your ISP or
you can browse the Internet to apply for free E-mail account.
Q: Can Internet users access LAN computers?
The NetComm ADSL Modem Router uses NAT to route all in/out band packets. All external
users can only see the IP of the NetComm ADSL Modem Router but cannot access LAN
computers. The LAN computers are well protected with the NetComm ADSL Modem Router’s
natural firewall (NAT). You can allow Internet users access to specific computers by using the
Port Forwarding, DMZ Host and Special Application options.
Q: When should I use DMZ host?
Enable DMZ host when you want to have unrestricted communication between your computer
and the Internet, for example, playing Internet game (i.e. Ages of Empire) or having multimedia
conference (i.e. NetMeeting).
Q: Does the NetComm ADSL Modem Router support PPTP of VPN packets pass
through?
Yes. The NetComm ADSL Modem Router supports single session PPTP pass through.
Q: Does the NetComm ADSL Modem Router series support IPsec?
Yes. The NetComm ADSL Modem Router supports single session IPsec pass through.
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Appendix B: Technical Specifications
Standards Compliance
IEEE 802.3 10BASE-T
IEEE 802.3u 100BASE-TX
Interface
One 10Mbps Ethernet RJ45 port on WAN
Four 10/100Mbps auto-sensing Ethernet RJ-45 ports and one uplink port on LAN
Management
Web-based UI Management
LED Display
Power
DIAG
Link/Activity for both WAN and LAN port(s)
Full Duplex/Collision for LAN ports
Environment
Operation Temperature: 0 ~ 45 degrees C
Storage Temperature: -20 ~ 70 degrees C
Humidity: 0 ~ 90% non-condensing
Dimension
145 (L) x 260 (W) x 38 (H) mm
Power
External, DC 5V, 2.5A
Mounting
Desktop
Wall-mounting
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Appendix C: Glossary
10Base-T / 100Base-T
The adaptation of the Ethernet standard for
Local Area Networks (LANs). 10Base-T uses
a twisted pair cable with maximum lengths of
100 meters and transmits data at 10Mbps
maximum. 100Base-T is similar, but uses two
different twisted pair configurations and
transmits at 100Mbps maximum.
Ad-hoc Network
Also known as the peer-to-peer network, an
ad-hoc network allows all computers
participating in a wireless network to
communicate each other without an
AccessPoint.
Adapter
A device that makes the connection to a
network segment, such as Ethernet and
modem cards.
ADSL
Asymmetric Digital Subscriber Line (ADSL),
as its name indicates, is an asymmetrical data
transmission technology with higher traffic
rate downstream and lower traffic rate
upstream. ADSL technology satisfies the
bandwidth requirements of applications which
demand “asymmetric” traffic, such as web
surfing, file downloads, and telecommuting.
ATM
Asynchronous Transfer Mode is a network
technology supports real time voice, video,
and data transmission. The topology uses
switches that establish a logical circuit from
end to end, which guarantees quality of
service (QoS). ATM works by transmitting all
traffic as fixed-length, 53-byte cells. This fixed
unit allows very fast switches to be built
ATM is widely used as a backbone
technology in carrier networks and large
enterprises. ATM is highly scalable and
supports transmission speeds of 1.5, 25, 100,
155, 622, 2488 and 9953 Mbps. ATM is also
running as slow as 9.6 Kbps between ships at
sea.
Bandwidth
The amount of data that can be transmitted in
a fixed amount of time.
Browser
A software application used to locate and
display Web pages. Examples include
Netscape Navigator and Microsoft Internet
Explorer.
BSS
BSS is the acronym of Basic Service Set that
is consisted a wireless access point and a
group of wireless client computers.
Communications Protocols
Communication between devices requires they
agree on the format in which the data is to be
transmitted, sent and received. The
communications protocols are a set of rules
that define the data format.
DHCP
DHCP, short for Dynamic Host Configuration
Protocol, is a protocol for assigning dynamic
IP Addresses to devices on a network.
Dynamic Addressing means that a device can
have a different IP Address each time it
connects to the network.
Domain Name
A name that identifies one or more IP
Addresses. For example, the domain name
microsoft.com represents about a dozen IP
Addresses. Domain names are used in URLs
to identify particular Web pages. For example,
in the URL http://www.pcwebopedia.com/
index.html, the domain name is
pcwebopedia.com.
DNS
Short for Domain Name Server, translates
domain names into IP Addresses. To help us
recognize and remember domain names they
are alphabetic in form, however, the Internet
actually runs on numbered IP Addresses.
DNS servers translate domain names into their
respective IP Addresses.
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DSSS
Also known as Direct Sequence Spread
Spectrum, it is a radio transmission method
that continuously changes frequencies.
Ethernet
One of the most common Local Area Network
(LAN) standards. Ethernet uses a bus
topology which supports a data transfer rate
of 10 or 100 Mbps.
ESS
ESS is the acronym of Extend Service Set that
consists of several BSS.
Firewall
A security system used to enforce an access
control policy between an organisation’s
networks and the Internet.
IEEE
Short for Institute of Electrical and Electronics
Engineers, an organization best known for
developing standards for the computer and
electronics industry.
Internet
A global network connecting millions of
computers for the exchange of data, news and
opinions.
Intranet
A network based on TCP/IP Protocol
belonging to an organization, and accessible
only by that organization’s members,
employees, or others with authorization.
Infrastructure Network
Unlike an ad-hoc network (where users on a
wireless LAN send data to each other
directly), users on an infrastructure network
send data through a dedicated access point.
Additionally, the access point enables users
on a wireless LAN to access an existing wired
network to take advantage of sharing the
wired networks resources, such as files,
printers, and Internet access.
IP Address
An identifier for a computer or device on a
TCP/IP network. Networks using the TCP/IP
Protocol route messages based on the IP
Address of the destination. The format of an
IP address is a 32-bit numeric address written
as four numbers separated by periods. Each
number can be from zero to 255.
IPSec
Internet Protocol Security is a security
standard for network transmission, which is
often used for VPN connections. It provides
authentication and packet encryption over the
Internet.
ISP
Short for Internet Service Provider, a
company that provides access to the Internet
for a fee.
Local Area Network (LAN)
A computer network that spans a relatively
small area. Most LANs are confined to a
single building or group of buildings.
However, one LAN can be connected to other
LANs over any distance. A system of LANs
connected in this way is called a wide area
network (WAN)
MAC Address
Short for Media Access Control Address, a
hardware address that uniquely identifies each
node of a network.
NAT
Short for Network Address Translation, a
routing protocol that allows global IP
Addresses to be translated into multiple
private IP Addresses for use on internal LAN
networks. The explosion in the use of the
Internet has created a critical problem for the
Internet Assigned Numbers Authority
(IANA) which is in charge of assigning IP
Addresses to Internet users, ISPs etc. NAT is
a technology that has been introduced to help
maximize the utilization of assigned IANA
and global IP Addresses.
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Network Protocol
Network protocols encapsulate and forward
data packets from one interface to another.
PAP/CHAP
Short for Password Authentication Protocol
and Challenge Handshake Authentication
Protocol. Most ISPs use either one for user
identification. If your ISP doesn’t support
these two protocols, contact them for an
authentication script.
PPP
Short for Point-to-Point Protocol, a
communications protocol for transmitting
information over standard telephone lines
between devices from different manufacturers.
PPPoE
Short for PPP over Ethernet, relying on two
widely accepted standards, Ethernet and the
Point-to-Point Protocol. PPPoE is a
communications protocol for transmitting
information over the Ethernet between
devices from different manufacturers.
PPTP
The acronym of Point to Point Tunnelling
Protocol, PPTP encapsulates the packet for
transmission over the Internet. It creates a
private “tunnel” through the large public
network to have similar security of private
network without actually leasing a private
line. PPTP is normally used for VPN
connections.
Protocol
An agreed format for transmitting, sending and
receiving data between two devices.
Roaming
The ability for a wireless device moves from
one access point’s range to another without
losing the connection.
Router
An Internet device that routes requests for
information to other routers until the
information’s location is found and the data
can be transmitted back to the origin of the
request.
TCP/IP
Short for Transmission Control Protocol and
Internet Protocol, the suite of communications
protocols that enable hosts on the Internet to
connect and exchange streams of data.
VPN
The acronym for Virtual Private Network. Via
access control and encryption, VPN brings the
security to the data transmission through the
Internet as it is transmitted through a private
network. It not only takes advantage of
economies of scale but also secures a high
level of security while the packet is sent over
the large public network.
Wide Area Network (WAN)
A system of LANs being connected by
telephone lines and radio waves. Although
some WANs may be privately owned, they
are usually considered a means of public
access.
WEP
The acronym for Wired Equivalent Privacy. It
is an encryption mechanism used to protect
your wireless data communications. WEP
uses a combination of 64-bit/128-bit keys to
encrypt data that is transmitted between all
points in a wireless network to ensure data
security. It is described in the IEEE 802.11
standard.
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Appendix D: Registering your NetComm Product
To ensure that the conditions of your warranty are complied with, please go to the NetComm
web site for quick and easy registration of your product at
www.netcomm.com.au
Alternatively, you can print out a copy of the Warranty Registration Form and mail it to
NetComm Limited, PO Box 1200, Lane Cove NSW 2066.
Note: The Warranty Registration Form can be found at “D:\Manuals\Warranty
Registration Form.pdf” where D:\ is the letter of your CD-ROM drive.
Contact Information
If you have any technical difficulties with your produce, please do not hesitate to contact
NetComm’s Customer Support Department.
Email: support@netcomm.com.au
Fax: (02) 9424-2010
Web: www.netcomm.com.au
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.
NetComm reserves the right to request proof of purchase upon any warranty claim.
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