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DIR-120
User Manual
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Quick Install Guide
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QUICK INSTALL GUIDE
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D-Link DIR-120 User Manual

DIR-120 Ethernet Broadband Router
CONTENTS
About This User’s Guide.........................................................................................................................................................................................................................................iv
Before You Start......................................................................................................................................................................................................................................................iv
Installation Notes......................................................................................................................................................................................................................................................v
Installation Information...........................................................................................................................................................................................................................................vi
INTRODUCTION ................................................................................................................................................................................... 1
Router Description and Operation............................................................................................................................................................................................................................1
Front Panel...............................................................................................................................................................................................................................................................3
Rear Panel ................................................................................................................................................................................................................................................................4
CONNECTING THE ROUTER............................................................................................................................................................... 5
Connect Router to Ethernet LAN .....................................................................................................................................................................................................5
Power On Router......................................................................................................................................................................................................................................................6
Reset.........................................................................................................................................................................................................................................................................6
BASIC ROUTER CONFIGURATION..................................................................................................................................................... 7
Configuring IP Settings on Your Computer.............................................................................................................................................................................................................7
ACCESSING THE CONFIGURATION MANAGER............................................................................................................................... 8
Login........................................................................................................................................................................................................................................................................9
Web Manager....................................................................................................................................................................................................................................10
Configure Internet Connection with the Setup Wizard................................................................................................................................................................11
Configure Internet Connection Manually...............................................................................................................................................................................................................23
Network (LAN IP) Settings..............................................................................................................................................................................................................34
Printer Setup ....................................................................................................................................................................................................................................36
ADVANCED CONFIGURATION ......................................................................................................................................................... 41
Port Forwarding...............................................................................................................................................................................................................................42
Application Rules ............................................................................................................................................................................................................................43
D-Link DIR-120 User Manual
DIR-120 Ethernet Broadband Router
Access Control.................................................................................................................................................................................................................................44
Website Filter ...................................................................................................................................................................................................................................45
Firewall Rules ........................................................................................................................................................................................................................................................46
Advanced Network ..........................................................................................................................................................................................................................47
QOS Engine......................................................................................................................................................................................................................................48
TOOLS................................................................................................................................................................................................. 49
Admin................................................................................................................................................................................................................................................50
Time...................................................................................................................................................................................................................................................51
System..............................................................................................................................................................................................................................................52
Firmware...........................................................................................................................................................................................................................................53
Dynamic DNS ...................................................................................................................................................................................................................................54
System Check ..................................................................................................................................................................................................................................55
Schedules.........................................................................................................................................................................................................................................56
Log Settings.....................................................................................................................................................................................................................................57
STATUS............................................................................................................................................................................................... 58
Device Info........................................................................................................................................................................................................................................59
Log ....................................................................................................................................................................................................................................................60
Stats ..................................................................................................................................................................................................................................................60
Active Session .................................................................................................................................................................................................................................61
LAN Computer (DHCP Client) List .................................................................................................................................................................................................61
SUPPORT............................................................................................................................................................................................ 62
TECHNICAL SPECIFICATIONS ......................................................................................................................................................... 63
CONFIGURING IP SETTINGS ON YOUR COMPUTER..................................................................................................................... 64
D-Link DIR-120 User Manual
About This User’s Guide
This user’s guide provides instructions on how to install the DIR-120 Ethernet Broadband Router and use it to connect a computer or Ethernet LAN to the Internet.
Before You Start
Please read and make sure you understand all the prerequisites for proper installation of your new Router. Have all the necessary information and equipment on hand before beginning the installation.
Overview
The procedure to install the Router can be described in general terms in the following steps:
1. Gather information and equipment needed to install the device. Before you begin the actual installation make sure you have all the necessary information and
equipment.
2. Install the hardware, that is, connect the cables (Ethernet and telephone) to the device and connect the power adapter.
3. Check the IP settings on your computer and change them if necessary so the computer can access the web-based software built into the Router.
4. Use the web-based management software to configure the device to suit the requirements of your ISP account.
Packing List
Open the shipping carton and carefully remove all items. In addition to this Manual, ascertain that you have:
• DIR-120 Ethernet Broadband Router
• Power Adapter
• Ethernet Cable
• Quick Installation Guide
• Manual on CD
If any of the above items are missing, please contact your reseller.
NOTE: Using a power supply with a different voltage rating will damage and void the warranty for this product
CAUTION: T he Router must be used with the power adapter included with the device.
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Installation Notes
In order to establish a connection to the Internet it will be necessary to provide information to the Router that will be stored in its memory. For some users, only their account information (User Name and Password) is required. For others, various parameters that control and define the Internet connection will be requi red.
Internet Connection
The DIR-120is intended for use with a broadband device such as an ADSL, DSL or cable (CATV) modem. The physical connection to the Internet must first be established through a broadband device, typically this should be set up as an invisible bridge.
Operating Systems
The DIR-120uses an HTML-based web interface for setup and management. The web configuration manager may be accessed using any operating system capable of running web browser software, including Windows 98 SE, Windows ME, Windows 2000, and Windows XP.
Web Browser
Any common web browser can be used to configure the Router using the web configuration management software. The program is designed to work best with more recently released browsers such as Opera, Microsoft Internet Explorer® version 5.0, Netscape Navigator® version 4.7, or later versions. The web browser must have JavaScript enabled. JavaScript is enabled by default on many browsers. Make sure JavaScript has not been disabled by other software (such as virus protection or web user security packages) that may be running on your computer.
Ethernet Port (NIC Adapter)
Any computer that uses the Router must be able to connect to it through the Ethernet port on the Router. This connection is an Ethernet connection and therefore requires that your computer be equipped with an Ethernet port as well. Most notebook computers are now sold with an Ethernet port already installed. Likewise, most fully assembled desktop computers come with an Ethernet NIC adapter as standard equipment. If your computer does not have an Ethernet port, you must install an Ethernet NIC adapter before you can use the Router. If you must install an adapter, follow the installation instructions that come with the Ethernet NIC adapter.
D-Link DIR-120 User Manual v
Installation Information
Print this page and record the listed information here in case you have to re-configure your WAN connection in the future or reset the device configuration settings.
Information you will need from your Internet service provider:
Username
This is the Username that is used to log on to your Internet service provider’s network. It is commonly in the form − user@isp.com.
Record your info here.
Password
Internet Connection Type
This is the Password that is used, in conjunction with the Username above, to log on to your Internet provider’s network.
This is the method that your ISP uses to send and receive data between the Internet and your computer.
Information you will need about your DIR-120 Ethernet Broadband Router:
Username
Password
LAN IP address for the DIR-120
LAN Subnet Mask for the DIR-120
This is the Username you will be prompted to enter when you access the DIR-120 configuration screens using a Web browser. The default Username is admin.
This is the Password you will be prompted to enter when you access the DIR-120’s configuration windows using a Web browser. There is no initial Password.
This is the IP address you will enter into the Address field of your Web browser to access the DIR-120’s configuration windows using a Web Browser. The default IP address is 192.168.0.1.
This is the subnet mask used by the DIR-120, and will be used throughout your LAN. The default subnet mask is 255.255.255.0.
Information you will need about your LAN or computer:
DHCP Client status Your DIR-120 Broadband Router is configured, by default, to be a DHCP
server. This means that it can assign an IP address, subnet mask, and a default gateway address to computers on your LAN. The range of IP addresses the DIR-120 will assign are from 192.168.0.100 to
192.168.0.199. Your computer (or computers) needs to be configured to Obtain an IP address automatically (that is, they need to be configured as DHCP clients.)
Record your info here.
Record your info here.
D-Link DIR-120 User Manual vi
Introduction
This section provides a brief description of the Router, its associated technologies and a list of Router features.
Router Description and Operation
The D-Link DIR-120 Ethernet Broadband Router is designed to provide connectivity for your private Ethernet LAN plus one USB connected printer, to share an Internet connection via a broadband technology. The broadband connection may be in any common form including DSL or cable modems.
The Router is easy to install and use and take just a few minutes to set up. . The D-Link DIR-120 also incorporates many advanced features, typically found in more expensive routers. After completing the steps outlined in the Quick Installation Guide (included in your package) you will have the ability to share a single Internet connection as well as sharing information and resources such as files and printers.
The DIR-120 is compatible with most popular operating systems, including Macintosh, Linux and Windows, and can be integrated into an existing network.
D-Link DIR-120 User Manual 1
Router Features
The D-Link DIR-120 Broadband Router provides the following features:
• Broadband Connection Sharing - Connects multiple computers to a Broadband (Cable or DSL) modem to share the Internet connection.
• Ethernet Switch - Allows sharing of an Internet connection with multiple computers and devices.
• USB port – The USB 1.1 port is intended for printer sharing. Note: The printer must support LPR protocol.
• VPN Supported - Supports multiple and concurrent IPsec and PPTP pass-through sessions, so multiple users behind the DIR-120 can access corporate networks through
various VPN clients more securely.
• Advanced Firewall, MAC Filtering, and WebSite Filtering Features - The Web-based user interface displays a number of advanced network management features
including:
• Web-Based Management - DIR-120 is configurable through any network computer’s web browser using Netscape or Internet Explorer.
• Port Forwarding Supported - Enables you to expose WWW, FTP and other services on your LAN to be accessible to Internet users.
• Special Application Supported - Special applications requiring multiple connections, like Internet gaming, video conferencing, Internet telephony and so on. The DIR-
120 can sense the application type and open a multi-port tunnel for it.
• DMZ Host Supported - Allows a networked computer to be fully exposed to the Internet. This function is used when the Special Application feature is insufficient to
allow an application to function correctly.
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Front Panel
Place the Router in a location that permits an easy view of the LED indicators on the front panel.
Status LEDs
Power
The LED indicators on the front panel include the Power, Status, WAN, and LAN for the Ethernet ports.
Power
Status
WAN
LAN
Steady green light indicates the unit is powered on. This lights steady green when the device is first powered on, then blinks green when the system status is normal, that is, when
the device is functioning properly. A prolonged steady green light indicates a problem. Lights steady green when the WAN (Internet) connection is established and blinks green when there is activity on the WAN
port. Lights steady green when the LAN (Ethernet) connection is established and blinks green when there is activity on the
corresponding LAN port.
WAN LEDs USB LEDs
LAN LEDs
USB (printer)
Lights steady green when the USB connection to a printer is established and blinks green when there is activity on the USB port.
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Rear Panel
Connect the AC power adapter cord and network cables on the rear panel. The power switch and reset button are also located on the back of the device.
LAN Port USB Port WAN Port Reset Button
Note: All ports (LAN and WAN) are Auto-MDIX. All ports also automatically connect with straight-through
or crossover CAT5 or better Ethernet cable.
USB Port
LAN Ports (1 – 4)
WAN Port
Power Adapter Reset Button
The USB port can be used to share a printer. The printer must support the LPR protocol. Use CAT5 or better Ethernet cabling with standard RJ-45 connectors to connect computers, switches, hubs, wireless access
points or any Ethernet networking device. Use the LAN LED indicators on the front panel to check the Ethernet connection This port is where the user is to connect the Ethernet cable from an outside source that is taking the connection from your local
ISP. This is where the user will connect the power adapter, the other end of which will be connected to a power outlet. Pressing this button will restore the DIR-120 to its factory default settings.
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Connecting the Router
The Router provides the connection between two networks, a private Ethernet LAN and the public Internet (WAN). Choose a location for the Router where Ethernet devices can be connected to the LAN ports and the WAN port can be connected to the cable modem or DSL modem that provides the broadband Internet connection.
The Router, and all electrical devices should be protected from dust, water, moisture and heat. Make sure network cables, power adapters and power cords are placed safely out of the way so they do not create a tripping hazard. As with any electrical appliance, observe common sense safety procedures.
Place the Router on a shelf, desktop, or other stable platform. Ideally you should be able to view the LED indicators on the front panel.
Connect Router to Ethernet LAN
The Router can be connected to computers or other Ethernet devices using the four Ethernet LAN ports on the rear panel. Any connection to an Ethernet concentrating device such as a switch or hub must operate at a speed of 10/100 Mbps only. When connecting the Router to any Ethernet device capable of operating at speeds between 10~100Mbps, be sure that the device has auto-negotiation (NWay) enabled for the connecting port. Use standard CAT5 or better Ethernet cable with RJ-45 connectors. The Ethernet LAN ports are auto MDI-II/MDI-X so you can use straight-through or crossover Ethernet cabling.
The rules governing Ethernet cable lengths apply to the LAN to Router connection. Be sure the Ethernet cables connected to the LAN ports do not exceed 100 meters in length.
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Power On Router
To power on the Router:
1. Insert the AC Power Adapter cord into the power receptacle located on the rear panel of
the Router and plug the adapter into a suitable nearby power source. See the back panel illustration above to view the power receptacle.
2. The Power LED indicator will immediately light green and remain lit. The Status LED
should light steady green initially and begin to blink after a few seconds.
3. If you have the Router connected to your network you can look at the Ethernet Link/Act LED indicators to make sure they have valid connections. The Router will attempt
to establish the WAN connection, if the WAN line is connected and the connection is properly configured this should light up after several seconds.
CAUTION: The Router must be used w ith the power adapter included with the device.
Reset
To reset the system settings to factory defaults, please follow these steps:
1. Leave the device powered on, do not disconnect the power.
2. Press the reset button and hold (use a paper-clip). See the back panel illustration above to view the location of the reset button.
3. Keep the button pressed about 10 seconds.
4. Release the button.
The DIR-120 will then automatically reboot itself. Upon restarting the Router will load the factory default configuration settings including the default IP address 192.168.0.1 a subnet mask 255.255.255.0 and the DHCP server active.
D-Link DIR-120 User Manual 6
Basic Router Configuration
The first time you setup the Router it is recommended that you configure the WAN connection using a single computer making sure that both the computer and the Router are not connected to the LAN. Once the WAN connection is functioning properly, you may continue to make changes to Router configuration including IP settings and DHCP setup. This chapter is concerned mainly with using your computer to configure the WAN connection. Instructions are also provided for basic Wireless LAN configuration. The following chapter describes how to set up the advanced features of the Router.
Configuration Summary
1. Connect to the Router To configure various settings used by the Router for Internet and Wireless LAN access it is first necessary to access the Router’s management
HTML-based interface. This is done using an ordinary web browser. Your computer must be able to “see” the Router before it can manage it using a browser. If the Router is in the same “neighborhood” or subnet as the Router, you should be able to access the management software. Therefore, you must first make sure your computer has IP settings that place it in the same subnet as the Router. The easiest way to make sure your computer has the correct IP settings is to configure it to use the DHCP server in the Router. The DHCP server will automatically enable your computer to use a browser to manage the Router. Appendix B, Configuring IP Settings on Your Computer, describes how to change the IP configuration for a computer running a Windows operating system to be a DHCP client. If you are running another operating system, make sure your computer is configured as a DHCP client so it can automatically obtain IP settings from the Router. Some operating systems will automatically select the best IP settings. Consult the user manual for the operating system (OS) if you are unsure.
2. Configure the Internet (WAN) Connection Most users will be able to complete this process using the Setup Wizard. The Setup Wizard can be launched once you
have successfully connected with the Router’s management software. There are different methods used to establish the WAN connection to the ISP’s network and ultimately to the Internet. Your service provider should provide all the information needed to configure the WAN connection for Internet access.
Configuring IP Settings on Your Computer
In order to configure your system to receive IP settings from the Router it must first have the TCP/IP protocol installed. I f you have an Ethernet port on your computer, it probably already has TCP/IP protocol installed. See Appendix B for instruction on how to configure Windows computers to be DHCP clients.
For computers running non-Windows operating systems, follow the instructions for your OS that configure the system to receive an IP address from the Router, that is, configure the system to be a DHCP client.
For computers using manually configured IP settings, make sure the IP address is on the same subnet as the Router. The computer should use an IP address in the range
192.168.0.2 to 192.168.0.254 with a subnet mask of 255.255.255.0.
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Accessing the Configuration Manager
Now that your computer’s IP settings allow it to communicate with the Router, you can access the configuration software. To use the web-based management software, launch a suitable web browser and direct it to the IP address of the Router.
Type in http:// followed by the default IP address, 192.168.0.1 in the address bar of the browser. The URL in the address bar should read: http://192.168.0.1. Once entered, the user will be prompted to enter the username and password to access the Configuration Manager, as show below. A new window will appear and you will be prompted for a user name and password to access the web-based manager.
NOTE: The wrong proxy server settings on your browser can prevent conne ction to the web manag er. If you are having trouble connecting to the web interface of the Router, configu re the proxy settings to bypass the proxy server or disable use of proxy servers and try to connect again.
To check proxy setting for Windows Internet Explorer:
1. In Windows, click on the Start button, go to Settings and choose Control Panel.
2. In the Control Panel window, double-click on the Internet Options icon. (Alternatively you can access this Internet Options menu using the Tools pull-down menu in Internet Explorer.)
3. Click the Connections tab and click on the LAN Settings button.
4. Verify that the “Use proxy server” option is NOT checked. If it is checked, click in the checked box to deselect the option and click OK.
D-Link DIR-120 User Manual 8
Login
Use the default user name “admin” and no password for first time setup. You should change the web-based manager access user name and password once you have verified that a connection can be established. The user name and password allows any PC within the same subnet as the Router to access the web-based manger.
Login menu
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Web Manager
The Web Manager used for configuration uses directories to organize the various menus used to configure and monitor the Router. The first page that appears after logging in presents the Internet menu in the Setup menu directory.
Click to access menu directories:
Setup, Advanced, Tools and Support.
Click to launch Setup Wizard for Internet connection.
Select language used
for web interface
Internet Connection menu
Most users will be able to configure their Internet connection using the Setup Wizard. Click the Setup Wizard button on the first menu that appears after logging in to access the Setup Wizard. For printer setup, click the Printer Setup link and use the Printer Setup Wizard to configure the Router’s USB printer connection. See Printer Setup for details.
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Configure Internet Connection with the Setup Wizard
To use the Setup Wizard, open the Setup menu directory (the first page you see after logging in), and click the SetupWizard button to go to the Wizard menu.
Wizard menu
Click the Launch Internet Connection Setup Wizard button to begin configuration on the Internet connection.
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Setup Wizard – Welcome
The initial dialog box summarizes the setup process. Click the Next button to proceed. You may stop using the Setup Wizard at any time by clicking the Cancel button. If you exit the wizard you will return to the Internet Connection menu page without saving any of the settings changed during the process.
Setup Wizard welcome menu
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Setup Wizard – Step 1
Type a new Password used for system administration in the space provided and the same password again in the Confirm Password space. This will be the new system password used to login. Remember that this password is case sensitive so it must be typed exactly as you are typing it here when you want to access the web manager. The user cannot change the system User Name used for login, admin. Click the Next button to proceed, click the Prev button to see the previous wizard menu.
D-Link DIR-120 User Manual 13
Setup Wizard – Step 2
Choose the time zone you are in from the pull-down menu and click Next. This sets the system time used for the Router. If you wish to return to the previous menu during the setup process, click the Prev button.
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Setup Wizard – Step 3
Choose the Internet connection type from the list of options presented in the Setup Wizard. Select the connection type appropriate for your service and click the Next button.
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Setup Wizard – Configure PPPoE Connection
For PPPoE connections, select the Address Mode Dynamic IP or Static IP, type in the Username and Password used to identify and verify your account to the ISP. Retype the
password again and if necessary, type a Service Name or domain name. For Static IP address mode, type the IP Address assigned to your account. Your ISP should provide this IP address along with other account information. Click Next to continue.
PPPoE Connection Settings
Address Mode
User Name
Password
Retype Password Retype the password exactly as entered in
This determines how an IP address is assigned to the Internet connection. Choose Dynamic IP if the PPPoE Internet connection is assigned automatically (and might change). Choose Static IP if the PPPoE Internet connection is a single IP address that will not change. The ISP should give this IP address to you.
The PPPoE user name used to establish the identity of your ISP account. Typically this is in the form user1234@isp.com - some users may be allowed to select a personalized user name for their account.
Enter the password used to verify the identity of your account. Your ISP may have provided this to you or you might have chosen a personaliz e d pass word that is easy to remember. The password is case-sensitive, so type the characters exactly as given to you.
the previous field.
D-Link DIR-120 User Manual 16
Service Name
Enter the Service Name provided by your ISP if necessary (optional).
Setup Wizard – Configure Dynamic IP Address Connection
For Dynamic IP Address connections, you may want to copy the MAC address of your Ethernet adapter to the Router. Some ISPs use the unique MAC address of your computer’s Ethernet adapter for identification and for IP address assignment (DHCP) when you first access their network. This can prevent the Router (which has a different MAC address) from being allowed access to the ISP’s network (and the Internet). To clone the MAC address of your computer’s Ethernet adapter, click the Clone MAC Address button. Click Next to continue.
DHCP Connection Settings
Host Name
MAC
Clone MAC Address
The Host Name is optional but may be required by some ISPs. If you clone the MAC address of your com puter to the Router, the MAC
address will appear here. This will be the MAC address recorded by the ISP’s server when the connection is initiated.
The default MAC address is set to the Internet’s physical interface MAC address on the Broadband Router. You can use the “Clone Your PC’s MAC Address” button to copy the MAC address your computer’s Ethernet Card to the Router.
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Setup Wizard – Configure Static IP Address Connection
For Static IP Address connection types, you must type in the IP Address, Subnet Mask, Gateway Address, Primary DNS Address and Secondary DNS Address (optional). Your ISP should provide this information to you. Click Next to continue.
Static IP Connection Settings
IP Address
Subnet Mask
Gateway Address
Primary DNS Address
Secondary DNS Address
The public or global IP address provided by your ISP. The Subnet Mask used for the Internet. This should also be provided by
your ISP The IP address of the gateway router owned by your ISP. Your ISP should
provide this IP address. The primary DNS (Domain Name Server) IP address provided by your ISP This is an optional DNS Address entry to be used if the primary DNS Fails.
D-Link DIR-120 User Manual 18
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