D-Link DSL-2520U User Manual
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D-Link DSL-2520U User Manual

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..................................................................................................... 2  
................................................................................................ 3  
...................................................................................................................... 5  
................................................................................................. 6  
Connections ........................................................................... 6
LEDs ........................................................................................ 7
INSTALLATION .............................................................................. 8
..................................................................................................... 8  
................................................................................................... 9  
................................................................................................ 15  
.................................................................................................... 15  
........................................................................................... 16  
CONFIGURATION ........................................................................ 18
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SETUP ....................................................................................................................... 19  
WIZARD ................................................................................. 19
ADSL SETUP ......................................................................... 22
ADVANCED .............................................................................................................. 30  
PORT FORWARDING ............................................................ 30
QOS SETUP .......................................................................... 32
OUTBOUND FILTER ............................................................. 34
INBOUND FILTER ................................................................. 35
DNS SETUP ........................................................................... 36
VLAN ...................................................................................... 38
FIREWALL & DMZ ................................................................. 40
ADVANCED ADSL ................................................................. 41
ADVANCED LAN ................................................................... 42
REMOTE MANAGEMENT ..................................................... 43
TR-069 ................................................................................... 45
MAINTENANCE ....................................................................................................... 46  
D-Link DSL-2520U User Manual

Table of Contents

.................... 11  
DSL-2520U .................................................. 13  
...................................................................... 18  
PASSWORD .......................................................................... 46
SAVE/RESTORE SETTINGS ................................................ 47
FIRMWARE UPDATE ............................................................ 48
SYSTEM LOG ....................................................................... 50
 
STATUS ...................................................................................................................... 51  
 
DEVICE INFO ........................................................................ 51
 
CONNECTED CLIENTS ........................................................ 53
STATISTICS .......................................................................... 54
TROUBLESHOOTING ................................................................. 56
NETWORKING BASICS .............................................................. 58
TECHNICAL SPECIFICATIONS .................................................. 60
 
 
 
 
 
 
 
 
 
 
 
 
 
 
............................................................................................ 58  
........................................................................... 59  
 
 
 
 
 
 
 
 
 
 
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Summary of Contents for D-Link DSL-2520U

  • Page 1: Table Of Contents

    NSTALLATION OTES TROUBLESHOOTING ..............56   ....11   ADSL NFORMATION YOU WILL NEED FROM YOUR SERVICE PROVIDER DSL-2520U ..........13   NETWORKING BASICS .............. 58   NFORMATION YOU WILL NEED ABOUT ....................15   EVICE NSTALLATION .................... 58  ...

  • Page 2: Package Contents

    One USB cable  One Splitter  One CD Note: Using a power supply with a different voltage rating than the one included with the DSL-2520U will cause damage and void the warranty for this product. D-Link DSL-2520U User Manual...

  • Page 3: System Requirements

     CD-ROM Drive  Ethernet Adapter with TCP/IP Protocol Installed  USB Port  Windows win7/vista/XP/2000  MAC OS  Internet Explorer v6 or later, FireFox v1.5  D-Link Click's Connect Utility  Computer with Windows 2000/XP D-Link DSL-2520U User Manual...
  • Page 4 ULTIMATE INTERNET CONNECTION The DSL-2520U ADSL2+ router is a versatile, high-performance remote router for home and the small office. With integrated ADSL2/2+ supporting up to 24Mbps download speed, firewall protection, Quality of Service (QoS), this router provides all the functions that a home or small office needs to establish a secure and high-speed remote link to the outside world.

  • Page 5: Features

    This eliminates the need to reconfigure every host whenever changes in network topology occur.  Network Address Translation (NAT) - For small office environments, the DSL-2520U allows multiple users on the LAN to access the Internet concurrently through a single Internet account. This provides Internet access to everyone in the office for the price of a single user.

  • Page 6: Hardware Overview

    Push again to power-off the port) Router Reset button Power insert To manually reset, depress Use the adapter shipped with the button with the power on for Router to connect to power between ten and fifteen seconds source D-Link DSL-2520U User Manual...

  • Page 7: Leds

    A blinking green light indicates activity on the WAN Internet (ADSL) interface. Steady green light indicates a successful Internet connection. Steady red light indicates failed Internet connection. Dark if no WAN protocol is configured. D-Link DSL-2520U User Manual...

  • Page 8: Installation

    Before you Begin 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. D-Link DSL-2520U User Manual...

  • Page 9: Installation Notes

    Operating Systems The DSL-2520U uses 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 2000, Windows XP, Windows Vista, Windows 7 and MAC OS.
  • Page 10 LAN side of the bridge, such as a PC, a server, a gateway device such as a router or similar firewall hardware. The IP address can be assigned in a number of ways. Your network service provider will give you instructions about any additional connection software or NIC configuration that may be required. D-Link DSL-2520U User Manual...

  • Page 11: Information You Will Need From Your Adsl Service Provider

    Modulation Type drop-down list on the ADSL Configuration window (Advanced > ADSL) Security Protocol This is the method your ADSL service provider will use to verify your Username and Password when you log on to their network. Your Router supports the PAP and CHAP protocols. D-Link DSL-2520U User Manual...
  • Page 12 ADSL service provider’s network and your computer. If you are setting up the Router for multiple virtual connections, you will need to configure the VPI and VCI as instructed by your ADSL service provider for the additional connections. This setting can be changed in the WAN Settings window of the web management interface. D-Link DSL-2520U User Manual...

  • Page 13: Information You Will Need About Dsl-2520U

    IP address used for DHCP service on the LAN when DHCP is enabled. LAN Subnet Mask for the DSL-2520U This is the subnet mask used by the DSL-2520U, and will be used throughout your LAN. The default subnet mask is 255.255.255.0. This can be changed later.

  • Page 14: Information You Will Need About Your Lan Or Computer

    Ethernet NIC If your computer has an Ethernet NIC, you can connect the DSL-2520U to this Ethernet port using an Ethernet cable. You can also use the Ethernet ports on the DSL-2520U to connect to other computer or Ethernet devices.

  • Page 15: Device Installation

    Device Installation The DSL-2520U ADSL Router maintains three separate interfaces, an Ethernet LAN ,an USB interface and an ADSL Internet (WAN) connection. Carefully consider the Router’s location suitable for connectivity for your Ethernet devices. You must have a functioning broadband connection via a bridge device such as a Cable or ADSL modem in order to use the Router’s WAN function.

  • Page 16: Factory Reset Button

    (MDI-II) port on a hub or switch. The rules governing Ethernet cable lengths apply to the LAN to Router connection. Be sure that the cable connecting the LAN to the Router does not exceed 100 meters. D-Link DSL-2520U User Manual...
  • Page 17 MDI-X ports (1x, 2x, etc.) with a crossed cable. Computer to Router Connection You can connect the Router directly to a 10/100BASE-TX Ethernet adapter card (NIC) installed on a PC using the Ethernet cable provided as shown in this diagram. D-Link DSL-2520U User Manual...

  • Page 18: Configuration

    Section 3 - Configuration Configuration This section will show you how to configure your new D-Link ADSL router using the web-based configuration utility. Web-based Configuration Utility Connect to the Router To configure the WAN connection used by the Router it is first necessary to communicate with the Router through its management interface, which is HTML-based and can be accessed using a web browser.

  • Page 19: Setup

    Router including how to change IP settings and DHCP server setup. WIZARD ADSL SETUP Click on the Setup Wizard button to launch the Setup Wizard. WELCOME TO D-LINK SETUP WIZARD There are four steps to configuring your router. Click on the Next button to continue. D-Link DSL-2520U User Manual...
  • Page 20 Section 3 - Configuration STEP 1: CHANGE YOUR DSL-2520U PASSWORD The default password is "admin", in order to secure your network, please modify the password. Note: Confirm Password must be same as "New Password". Of course, you can click on the Skip to ignore the step.
  • Page 21 Type in the Username and Password (and PPPoE Service Name, if required by your ISP). Click on the Next button to go to the next Setup Wizard window. STEP 3: FINISH Push the FINISH button to use the configuration. D-Link DSL-2520U User Manual...

  • Page 22: Adsl Setup

    Dynamic IP Address Choose this option if your ISP uses Dynamic IP Address over DSL. Static IP Address Choose this option if your ISP uses Static IP assignments. Bridge Choose this option if your ISP uses Bridge. D-Link DSL-2520U User Manual...
  • Page 23 IGMP query packets to the IPTV clients, it can be disable, IGMP-V1 and IGMP-V2. The default mode is disabled. Set Default Route mode to enable or disable default route, in order to access Internet, suggest enable default route. The default mode is enabled. D-Link DSL-2520U User Manual...
  • Page 24 Set PVC values which are from your ISP on VPI/VCI Set Virtual Circuit to enable mode when you want to use this PVC. For ADSL QoS setup, modify Service Category according to your ISP’s suggestions. Click on the Save Settings button to use this configuration. D-Link DSL-2520U User Manual...

  • Page 25: Lan Setup

    192.168.1.33. The IP address pool can be up to 253 IP addresses. Set the value hours on the DHCP Lease Time and the default is 72 hours. If you don’t want DSL-2520U to be the DHCP server, you can uncheck Enable DHCP Server to disable current DHCP server.
  • Page 26 Static means add IP address + MAC address binding to DHCP reservation table, Auto means delete exist IP address + MAC address binding from DHCP reservation table. Click on the Save Settings button to save the settings. D-Link DSL-2520U User Manual...
  • Page 27 Daylight Saving time ends in the most parts of the United States on the First Sunday of November. Each time zone in the United States must use Daylight Saving time at 2:00 A.M. Thus, in the D-Link DSL-2520U User Manual...
  • Page 28 You can also use the Copy Your Computer’s Time Settings to synchronize the Date and Time to your local PC. Or, you also can adjust Year/Month/Day/Hour/Minute/Second manually. Please click the Save Settings button to save the configuration. D-Link DSL-2520U User Manual...
  • Page 29 The LOGOUT page enables you to logout of your router configuration and closes the browser. To access the LOGOUT setting window, click on the Logout button in the SETUP directory LOGOUT Click on the Logout button to logout of the router configuration settings and close the browser. D-Link DSL-2520U User Manual...

  • Page 30: Advanced

    (WAN-to-LAN traffic). The Port Forwarding function allows remote users to access services on your LAN such as FTP for file transfers or SMTP and POP3 for e-mail. The DSL-2520U will accept remote requests for these services at your Global IP Address, using the specified TCP or UDP protocol and port number, and then redirect these requests to the server on your LAN with the LAN IP address you specify.
  • Page 31 PC with the appointed Private Type internal end port from Internal End Port input box. It shows the end port opened in the PC with the appointed Private IP. Select PVC of the port forwarding rule from Connection drop-down list. D-Link DSL-2520U User Manual...

  • Page 32: Qos Setup

    You have to define the service ports. For example, VoIP(RTP) is from 700(Start Port) to 900(End Port) H.323 is 1720 FTP is from 20(Start Port) to 21(End Port) MSN massager is from 1863(Start Port) to 1864(End Port) D-Link DSL-2520U User Manual...
  • Page 33 Select the Protocol, ICMP, TCP and UDP. Set the Source IP Range and the Destination IP Range. Set the Source Port Range and the Destination Port Range. Click the Add/Apply button to add the policy to the list. D-Link DSL-2520U User Manual...

  • Page 34: Outbound Filter

    Choose TCP, UDP or ICMP on the Protocol. Type Source IP address, Source Subnet Mask and Source Port Type Destination IP address, Destination Subnet Mask and Destination Port Please click Add/Apply button to add the policy in the list. D-Link DSL-2520U User Manual...

  • Page 35: Inbound Filter

    Choose TCP, UDP or ICMP on the Protocol. Type Source IP address, Source Subnet Mask and Source Port Type Destination IP address, Destination Subnet Mask and Destination Port Please click Add/Apply button to add the policy in the list. D-Link DSL-2520U User Manual...

  • Page 36: Dns Setup

    IP addresses. Using a DDNS service provider, your friends can enter your host name to connect to your game server and your friends don’t mind what your IP address is, and then just type the DDNS name to reach. You can use the D-Link DDNS server, https://www.dlinkddns.com to have a free DDNS.
  • Page 37 Type which Host name which you registered with your DDNS service provider. on the Host Name. Type the username/password on the username/password for your DDNS account. After configure the DNS settings as desired, click on the Apply Settings button to apply settings. D-Link DSL-2520U User Manual...

  • Page 38: Vlan

    To add ATM VCs port to VLAN group, check PVC’s Port. To tag outbound traffic from ATM VCs, check PVC’s Tagged. To add Ethernet port to VLAN group, check Ethernet’s Port. To tag outbound traffic from Ethernet port, check Ethernet’s Tagged. D-Link DSL-2520U User Manual...
  • Page 39 Section 3 - Configuration VLAN GROUP SUMMARY Present current exist VLAN groups, including Group, ID, VLAN Group Ports, VLAN Tagged Ports. To remove designate VLAN group, tick Remove checkbox and click Remove Selected to remove selected VLAN group. D-Link DSL-2520U User Manual...

  • Page 40: Firewall & Dmz

    DMZ IP Address. Or you also can choose the DMZ host by the up-down menu. the SYN attack, FIN/URG/PSH attack, Ping attack, Xmas Tree attack; TCP reset attack, Null scanning attack, Ping of Death attack and SYN/RST SYN/FIN attack. D-Link DSL-2520U User Manual...

  • Page 41: Advanced Adsl

    ADVANCED ADSL The Advanced ADSL settings allow you to choose which ADSL modulation settings your modem router will support. D-Link do not recommend that you change these settings unless directed to do so by your ISP. ADVANCED ADSL SETTINGS Please select following ADSL profile to link.

  • Page 42: Advanced Lan

    Section 3 - Configuration ADVANCED LAN These options are for users that wish to change the LAN settings. D-Link does not recommend changing these settings from factory default. Changing these settings may affect the behavior of your network. UPNP Please select the Enable UPnP when you want to have Universal Plug and Play (UPnP) supports peer-to-peer Plug and Play functionality for network devices.

  • Page 43: Remote Management

    Please type the port number which you want to replace the original port. Please select Allow All or Deny All on the Remote Admin Inbound Filter Please type a string to describe the action on the Details. D-Link DSL-2520U User Manual...
  • Page 44 Section 3 - Configuration REMOTE ACCESS CONTROL Please select the Service to enable on LAN or WAN. Please click the Apply Settings button to save the configuration. D-Link DSL-2520U User Manual...

  • Page 45: Tr-069

    Enter the authentication user name Name: Enter the authentication password Password: Connection Enter the authentication user name for the Request User ACS to login Name: Connection Enter the authentication password for the Request ACS to login Password: D-Link DSL-2520U User Manual...

  • Page 46: Maintenance

    Click on the MAINTENANCE tab to reveal the window buttons for various functions located in this directory. PASSWORD The factory default password of this router is 'admin'. To help secure your network, D-Link recommends that you should choose a new password. SET PASSWORD (OPTIONAL) Please type the Current Password, New Password and Confirm Password.

  • Page 47: Save/Restore Settings

    Please click the Save button on the Save Settings to Local Hard Drive. Please click Browse button to choose the configurations file and then click the Update Settings button to upload. If necessary, please click the Restore Device button to have the default settings. D-Link DSL-2520U User Manual...

  • Page 48: Firmware Update

    FIRMWARE UPDATE To update firmware, click on the Browse… button to search for the firmware file and then click the Update Firmware button to begin copying the file. The Router will load the file and restart automatically. D-Link DSL-2520U User Manual...
  • Page 49 There are Test the assigned IP address, Ping ISP Default Gateway and Ping Preferred DNS server and they will show PASS, FAIL or N/A Please click the Re_run Diagnostics Tests button to Diagnostic the above test items. D-Link DSL-2520U User Manual...

  • Page 50: System Log

    Section 3 - Configuration SYSTEM LOG The system Log allows you to view the logs that have been created. SYSTEM LOG Date/Time: Log date and time Message: All logged events will be displayed. D-Link DSL-2520U User Manual...

  • Page 51: Status

    The Device Info page displays a summary overview of your router status, including: Device firmware version and summary of your Internet configuration (both Internet and Ethernet status). To access the DEVICE INFO window, click on the Device Info button in the STATUS directory. GENERAL This window displays current system time and the firmware version. D-Link DSL-2520U User Manual...
  • Page 52 Network Status, Connection Up Time, Downstream Line Rate, Upstream Line Rate, MAC address, IP address, Subnet Mask, Default Gateway, and Preferred/Alternate DNS Server. This window displays LAN information including MAC Address, IP Address, Subnet Mask, and DHCP Server. D-Link DSL-2520U User Manual...

  • Page 53: Connected Clients

    Section 3 - Configuration CONNECTED CLIENTS This feature shows all the currently connected LAN computers. CONNECTED DHCP LAN CLIENTS This window displays all the entities which link to the LAN interface and obtained IP address from DHCP server successfully. D-Link DSL-2520U User Manual...

  • Page 54: Statistics

    This information reflects the current status of your router. WAN STATISTICS This window displays all the Received and Transmitted packet status on the WAN interface. LAN STATISTICS This window displays all the Received and Transmitted packet status on the LAN interface. D-Link DSL-2520U User Manual...
  • Page 55 Section 3 - Configuration ADSL STATISTICS This window displays all the ADSL status D-Link DSL-2520U User Manual...

  • Page 56: Troubleshooting

    1. Why can’t I access the web-based configuration utility? When entering the IP address of the D-Link router (192.168.1.1 for example), you are not connecting to a website on the Internet or have to be connected to the Internet. The device has the utility built-in to a ROM chip in the device itself.
  • Page 57  Close your web browser (if open) and open it.  Access the web management. Open your web browser and enter the IP address of your D-Link router in the address bar. This should open the login page for the web management.

  • Page 58: Networking Basics

    Networking Basics Check your IP address After you install your new D-Link adapter, by default, the TCP/IP settings should be set to obtain an IP address from a DHCP server automatically. To verify your IP address, please follow the steps below.

  • Page 59: Statically Assign An Ip Address

    Windows® 2000 - From the desktop, right-click on the My Network Places > Properties. Step 2 Right-click on the Local Area Connection which represents your D-Link network adapter and select Properties. Step 3 Highlight Internet Protocol (TCP/IP) and click on the Properties.

  • Page 60: Technical Specifications

    Appendix B – Technical Specification Technical Specifications D-Link DSL-2520U User Manual...
  • Page 61  RFC1058 RIP v1  RFC2131 DHCP Client /  RFC1213 SNMP v1 & v2c  RFC1334 PAP DHCP Server  RFC2364 PPP over ATM  RFC1389 RIP v2  RFC2516 PPP over  RFC1577 Classical IP over Ethernet D-Link DSL-2520U User Manual...
  • Page 62  ADSL full rate downstream: up to 24 Mbps / upstream: up to 1 Mbps Media Interface  ADSL interface: RJ-11 connector for connection to 24/26 AWG twisted pair telephone line LAN interface: RJ-45 port for 10/100BASE-T Ethernet connection D-Link DSL-2520U User Manual...

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