D-Link DSL-520B User Manual
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D-Link DSL-520B User Manual

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Summary of Contents for D-Link DSL-520B

  • Page 2: Table Of Contents

    Incoming ...................47 LAN ......................21 MAC Filtering ..................48 WAN ......................21 Parental Control ..................49 ATM ......................22 Quality of Service ..................50 ADSL ......................23 Route .........................24 QoS Configuration ................52 Queue Classification ................54 ARP ........................25 DHCP ........................26 Routing ......................58 D-Link DSL-520B ADSL2+ Modem User Manual...
  • Page 3 System Log ......................70 System Log Configuration ..............71 TR-069 Client ....................72 Internet Time....................73 Access Control—Services ..............74 Access Control—IP Address .............75 Access Control—Passwords .............76 Update Software ..................77 Save and Reboot ..................78 Troubleshooting ..................79 Networking Basics ..................81 D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 4: General Information

    • RJ-45 Ethernet cable • Quick Install Guide • Installation CD-ROM Note: Using a power supply with a different voltage rating than the one included with the DSL-520B will cause damage and void the warranty for this product. Important Safety Instructions • Place your modem on a flat surface close to the cables in a location with sufficient ventilation. • To prevent overheating, do not obstruct the ventilation openings of this equipment.

  • Page 5: Front Panel View

    • A red light indicates that the modem does not have an IP address or authentication Internet LED has failed • No light indicates that an ADSL connection is not present or the modem is in bridge mode. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 6: Rear Panel View

    • Pressing the Reset button for 5 seconds restores the modem to its original factory Reset default settings. ON/OFF • Press this button to turn the unit ON or OFF. Power Receptor • Receptor for the supplied power adapter. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 7: Installing The Modem

    Ethernet cable to the port labeled LAN on the back of the modem and attach the other end to the Ethernet port of your computer. • If your LAN has more than one computer, you can attach one end of an Ethernet cable to a hub or a switch and the other to the Ethernet port (labeled LAN) on the modem. Note that either a crossover or straight-through Ethernet cable can be used. The modem automatically recognizes the type of connection that is required. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 8: Connect The Power Adapter

    Section 2 - Installing The Modem Connect the Power Adapter • Complete the process by connecting the supplied 12V, 500mA power adapter to the POWER connector on the back of the device and plug the adapter into a wall outlet or power strip. Then turn on and boot up your PC and any LAN devices, such as hubs or switches, and any computers connected to them. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 9: Installation Diagram

    Section 3 - Installation Diagram Installation Diagram DSL-520B Modem Desktop Computer RESET ON/OFF - - - D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 10: Configuring Your Computer

    IP) is checked and then click on Properties. 4. In the Internet Protocol (TCP/IP) Properties dialog box, click on the radio buttons labeled Obtain an IP address automatically and Obtain DNS server address automatically. Click on OK twice to save your changes and then close the Control Panel. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 11: Mac

    2. Under Internet & Network, click Network. In the Show menu, select Built-in Ethernet or Ethernet (Depending on your Mac OS version.) 3. Click the TCP/IP tab. 4. In the Configure menu, select Using DHCP. 5. Click Apply Now and Save if your computer prompts you to save changes. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 12: Log In To The Modem

    • The admin account can perform all functions (username / password: admin / admin). Note: Passwords can be changed at any time. 3. Enter your user name and password, and then click OK to display the user interface. Note: This manual has been prepared using the admin user name. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 13: Quick Setup

    Internet Service Provider (ISP). Click Next to begin setup. Note: Quick Setup will allow you to configure a PPPoE connection. For more information on PPPoE and other connection types, please see the Advanced Setup section in this user manual. D-Link DSL-520B ADSL2+ Modem User Manual...
  • Page 14 Section 6 - Quick Setup The router will automatically perform a PVC scan in order to detect your DSL connection. If the scan is unsuccessful, you must manually enter account settings. For these settings, please refer to your account information provided by your ISP. D-Link DSL-520B ADSL2+ Modem User Manual...
  • Page 15 Section 6 - Quick Setup When the PVC scan is complete, you will be prompted to enter your username and password as provided by your ISP. Advanced users can configure optional settings on this page. Click Next to continue setup. D-Link DSL-520B ADSL2+ Modem User Manual...
  • Page 16 Section 6 - Quick Setup The router will automatically verify your username and password. D-Link DSL-520B ADSL2+ Modem User Manual...
  • Page 17 Section 6 - Quick Setup This page allows you to adjust the Local Area Network settings. No changes are required on this page. Click Next to continue. D-Link DSL-520B ADSL2+ Modem User Manual...
  • Page 18 Section 6 - Quick Setup Verify your settings are correct and click Save/Reboot. The router will save your settings and reboot itself. Please do not unplug any cables during this process. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 19: Device Info

    Section 7 - Device Info Device Info The Device Info page shows details of the modem such as the version of the software, bootloader, LAN IP address, etc. It also displays the current status of your DSL connection. Summary A summary of your device’s information is provided in this section. The information will reflect your DSL’s connection status. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 20: Wan

    Section 7 - Device Info The WAN Info screen displays WAN connections previously set up in the Home section. There is an extra “ Status” column used for connection status information, displaying either ADSL Link Down or ADSL Link Up. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 21: Statistics

    Ethernet interface. Click on Reset Statistics to renew the information. The WAN section shows received and transmitted packet information for the WAN connections that you have set up. Click on Reset Statistics to renew the information. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 22: Atm

    Section 7 - Device Info The ATM section displays statistical values for your ATM interface as well as for AAL5 and AAL5 VCC. Click on Reset Statistics to reset the values. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 23: Adsl

    Section 7 - Device Info ADSL Information contained in the ADSL screen is useful for troubleshooting and diagnosing connection problems. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 24: Route

    Section 7 - Device Info Route The Route Info section displays route information showing the IP addresses of the destination, gateway, and subnet mask as well as other route information. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 25: Arp

    Section 7 - Device Info This section allows you to query the MAC and IP address information of the equipment attached to the modem. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 26: Dhcp

    IP settings that are connected to the router though the Ethernet port. When the router is used for DHCP it becomes the default gateway for DHCP client connected to it. Keep in mind that if you change the IP address of the router, you must change the range of IP addresses in the pool used for DHCP on the LAN. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 27: Advanced Setup

    WAN interface and to proceed to the ATM PVC Configuration screen on the following page. The ATM PVC Configuration screen allows you to configure an ATM PVC identifier (VPI and VCI) and select a service category. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 28: Atm Pvc Configuration

    Section 9 - Advanced Setup ATM PVC Configuration VPI/VCI: These values are required for all DSL connection types and are provided by your ISP. Service Category: Use the default setting unless otherwise instructed by your ISP. Enable QoS: Use the default setting unless otherwise instructed by your ISP. For more information about QoS, see the Quality of Service section in this user manual. Click Next D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 29: Connection Type

    Setup for PPPoA and IPoA are similar to PPPoE and MER, respectively. Encapsulation Mode: Use the default setting unless otherwise instructed by your ISP. Note: These settings are ISP dependant. For information regarding proper configuration, contact your ISP. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 30: Ppp Over Ethernet (Pppoe)

    Bridge PPPoE Frames Between WAN and Local Ports (Default Enabled): Use the default setting unless otherwise instructed by your ISP. MTU: Use the default setting of 1492 unless otherwise instructed by your ISP. Click Next. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 31: Network Address Translation Settings (Pppoe)

    Enable WAN Service: This option is Enabled by default. Deselecting this option will cause your DSL connection to be disabled. Service Name: Enter any name that will help you identify your connection. This field will not affect your connection. Click Next. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 32: Wan Setup - Summary (Pppoe)

    Section 9 - Advanced Setup WAN Setup – Summary (PPPoE) Confirm the settings on this page match the settings provided by your ISP. To make any changes, click Back. If your settings are correct, click Save. Note: After clicking Save, you will have to reboot the modem in order to activate your connection. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 33: Dhcp

    Obtain default gateway automatically: This is the default option. If your ISP has provided you with a static default gateway, select Use the following default gateway. Select Use IP Address and enter the default gateway that your ISP has provided. Alternately, you may choose to select Use WAN Interface. Obtain DNS server addresses automatically: This is the default option. If your ISP has provided you with static DNS server addresses, select Use the following DNS server addresses. Enter the Primary and Secondary (if available) DNS server addresses that you ISP has provided. Click Next. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 34: Network Address Translation Settings (Mer/Dhcp)

    Enable WAN Service: This option is Enabled by default. Deselecting this option will cause your DSL connection to be disabled. Service Name: Enter any name that will help you identify your connection. This field will not affect your connection. Click Next. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 35: Wan Setup - Summary (Mer/Dhcp)

    Section 9 - Advanced Setup WAN Setup – Summary (MER/DHCP) Confirm the settings on this page match the settings provided by your ISP. To make any changes, click Back. If your settings are correct, click Save. Note: After clicking Save, you will have to reboot the modem in order to activate your connection. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 36: Bridging

    Enable WAN Service: This option is Enabled by default. Deselecting this option will cause your DSL connection to be disabled. Service Name: Enter any name that will help you identify your connection. This field will not affect your connection. Click Next. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 37: Wan Setup - Summary (Bridging)

    Section 9 - Advanced Setup WAN Setup – Summary (Bridging) Confirm the settings on this page match the settings provided by your ISP. To make any changes, click Back. If your settings are correct, click Save. Note: After clicking Save, you will have to reboot the modem in order to activate your connection. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 38: Lan

    You can configure the DSL Modem IP address and Subnet Mask for the LAN interface. The Save button only saves the LAN configuration data, but does not apply the configurations. Select the Save/ Reboot button to save the LAN configuration data, then reboot the modem and apply the new configuration. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 39: Nat

    IP address of the router by default. One of the characteristics of NAT is that data from the Internet is not allowed into the local network unless it is explicitly requested by one of the PCs in the network. Most Internet applications can run behind the NAT firewall without any problems. For example, if you request Internet pages or send and receive e-mails, the request for data from the Internet comes from a PC in the local network, and so the router allows the data to pass through. The router opens one specific port for the application. A port in this context is an internal PC address, via which the data is exchanged between the Internet and a client on a PC in the local network. Communicating via a port is subject to the rules of a particular protocol (TCP or UDP). If an external application tries to send a call to a PC in the local network, the router blocks it. There is no open port via which the data could enter the local network. Some applications, such as games on the Internet, require several links (that is, several ports), so that players can communicate with each other. In addition, these applications must also be permitted to send requests from other users on the Internet to users in the local network. These applications cannot run if NAT is activated. D-Link DSL-520B ADSL2+ Modem User Manual...
  • Page 40 IP address of the router when accessing the Internet. You can use NAT settings to configure the DSL router to carry out the following tasks. • For functions described as follows, IP addresses of the PCs must remain unchanged. If the IP addresses of the PCs are assigned via the DHCP server of the DSL router, you must disable DHCP server as the settings in the local network menu entry for the lease time or assign static IP addresses for the PCs. • You can enable or disable the NAT function. By default, the NAT function is enabled. D-Link DSL-520B ADSL2+ Modem User Manual...
  • Page 41 IP address or host name of the designated computer. All FTP-related data arriving at DSL router from the Internet henceforth is forwarded to the specific computer. Similarly, you can grant Internet users access to servers inside your home network, by identifying each service and the PC that provide it. This is useful, for example, if you want to host a Web server inside your home network. When an Internet user points his/her browser to DSL router external IP address, the gateway forwards the incoming HTTP request to your Web server. With one external IP address (DSL router main IP address), different applications can be assigned to your LAN computers, however each type of application is limited to use one computer. For example, you can define that FTP uses address X to reach computer A and Telnet also uses address X to reach omputer A. But attempting to define FTP to use address X to reach both computer A and B fails. DSL router, therefore, provides the ability to add additional public IP addresses to port forwarding rules, which you must obtain from your ISP, and enter into the IP addresses pool. Then, you can define FTP to use address X to reach computer A and address Y to reach computer B. D-Link DSL-520B ADSL2+ Modem User Manual...
  • Page 42 An ALG is needed to handle these packets and ensure that they reach their intended destinations. DSL router is equipped with a robust list of ALG modules in order to enable maximum functionality in the home network. The ALG is automatically assigned based on the destination port. Virtual servers are configured for this purpose. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 43: Port Triggering

    UDP) that this port uses. You then assign the public ports that are to be opened for the application to this trigger port. You can select known Internet services or manually assign ports or port blocks. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 44: Dmz Host

    Note: A DMZ host is not protected by the firewall and may be vulnerable to attack. This may also put other computers in the home network at risk. Hence, when designating a DMZ host, you must consider the security implications and and take the appropriate precautions. You can set up a client in your local network as a DMZ host. Your device then forwards all incoming data traffic from the Internet to this client. You can, for example, operate your own Web server on one of the clients in your local network and make it accessible to Internet users. As the exposed host, the local client is directly visible to the Internet and therefore particularly vulnerable to attacks (for example, hacker attacks). Enable this function only when necessary (for example, to operate a Web server) and when other functions (for example, port forwarding) are inadequate. In this case, you should take appropriate measures for the clients concerned. Note: Only one PC per public IP address can be set up as an exposed host. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 45: Security

    Click Security > IP Filtering and the following interface appears. By default, the firewall is enabled. The firewall is used to block document transmissions between the Internet and your PC. It serves as a security gate and permits only authorized traffic to be sent to the LAN. Note: If the modem is configured to bridge mode only, IP filtering is disabled and the IP filtering interface does not appear. If the modem does not configure a PVC of Bridge mode, MAC filtering is disabled and the MAC Filtering interface does not appear. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 46: Outgoing

    Section 7 - Device Info Outgoing Click Security > IP Filtering > Outgoing and the following page will appear. By default, all outgoing IP traffic from LAN is allowed, but some IP traffic can be blocked by setting up filters. Click Add and the page for defining the IP filtering rule appears. In this page, you can create a filter rule to identify outgoing IP traffic by specifying a new filter name and at least one condition. All specified conditions in the filtering rule must comply with the rule to take effect. Click Save/Apply to save and activate the filter. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 47: Incoming

    All specified conditions in this filter rule must comply with the rule. Click Save/ Apply to save and activate the filter. You should select at least one WAN interface to apply this rule. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 48: Mac Filtering

    Click Change Policy and the following page will appear. Then you can change the MAC Filtering Global Policy from FORWARDED to BLOCKED. Read the warning information. Click Yes to change the MAC filtering global policy from Forwarded to Blocked. Click No to cancel. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 49: Parental Control

    Click Security > Parental Control. Click Add and the following page will appear. On this page, you can add time of day restriction to a particular LAN device connected to the Router. The Browser’s MAC Address automatically displays the MAC address of the LAN device where the browser is running. To restrict other LAN device, click Other MAC Address and enter the MAC address of the another LAN device. To obtain the MAC address of a Windows based PC, enter ipconfig /all in the DoS window. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 50: Quality Of Service

    Section 9 - Advanced Setup Quality of Service Many communication and multimedia applications require large, high-speed bandwidths to transfer data between the local network and the internet. However, for many applications there is often only one internet connection available with limited capacity. QoS divides this capacity between the different applications and provides undelayed, continuous data transfer in situations where data packets with higher priority are given preference. Click Quality of Service and the following page will appear. Under Quality of Service, there are two network share modes: Queue Config and QoS Classification. Network QoS is an industry-wide set of standards and mechanisms for ensuring high-quality performance for critical applications. By using QoS mechanisms, network administrators can use existing resources efficiently and ensure the required level of service without reactively expanding or over-provisioning their networks. Traditionally, the concept of quality in networks meant that all network traffic was treated equally. The result was that all network traffic received the network’s best effort, with no guarantees for reliability, delay, variation in delay, or other performance characteristics. With best-effort delivery service, however, a single bandwidth-intensive application can result in poor or unacceptable performance for all applications. The QoS concept of quality is one in which the requirements of some applications and users are more critical than others, which means that some traffic needs preferential treatment. D-Link DSL-520B ADSL2+ Modem User Manual...
  • Page 51 Enabling QoS In this page, you can perform QoS queue management configuration. By default, the system enables QoS and sets a default DSCP mark to automatically mark incoming traffic without reference to particular classifier. Select Advanced Setup > Quality of Service and the following page will appear. Select Enable QoS to enable QoS and set the default DSCP mark. Click Save/Apply to activate QoS. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 52: Qos Configuration

    Click Queue Config, and the following page will appear. In this page, you can configure QoS queue. A maximum of 16 entries can be configured. QoS Queue Configuration can allocate four queues. Each of the queues can be configured for a precedence value (Lower integer values for precedence imply higher priority for this queue relative to others). The queue entry configured is used by the classifier to place ingress packets appropriately. Note: Lower integer values for precedence imply higher priority for this queue relative to others. For example, add a QoS queue entry and allocate it to a specific network interface (PVC 0/0/35). Set integer values for queue precedence to 1. D-Link DSL-520B ADSL2+ Modem User Manual...
  • Page 53 Lower integer values for precedence imply higher priority for this queue relative to others. Step 2 Add a QoS queue entry and assign it to a specific network interface (PVC 0/0/35), and set integer values for queue precedence to 1. See the following figure: Step 3 After proper modifications, click Save/Apply and the following page will appear. This configuration takes effect immediately. To delete a certain queue, disable it, select it, and then click Remove. After the queue is configured, you can create several traffic class rules to classify the upstream traffic. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 54: Qos Classification

    Section 9 - Advanced Setup QoS Classification Some applications require specific bandwidth to ensure its data be forwarded in time. QoS classification can creates traffic class rule to classify the upstream traffic. Assign queue which defines the precedence and the interface and optionally overwrite the IP header DSCP byte. After QoS classification, QoS divides capacity between different applications and provides undelayed, continuous data transfer where data packet with higher priority is given preference. Click QoS Classification and the following page will appear. In this page, you can configure network traffic classes. Click Add to continue. D-Link DSL-520B ADSL2+ Modem User Manual...
  • Page 55 There are two sets of classification rules. Set-1 is based on different fields within TCP/UDP/IP layer plus physical LAN port. Set-2 is based on MAC layer IEEE 802.1p priority field. Set-1 Rules contain the following: Physical LAN Port: Select one among Ethernet ports and D-Link DSL-520B ADSL2+ Modem User Manual...
  • Page 56 UPD/TCP Source Port Destination IP Address Destination Subnet Mask UPD/TCP Destination Port or a Range of Ports Source Mac Address Source Mac Mask Destination Mac Address Destination Mac Mask Set-2 Rules contain the following: 802.1p Priority: the 802.1p header includes a 3-bit prioritization field, which allows packets to be grouped into eight levels of priority (0-7), where level 7 is the highest one. D-Link DSL-520B ADSL2+ Modem User Manual...
  • Page 57 Section 9 - Advanced Setup QoS-DSCP Setting In order to understand Differentiated Services Code Point (DSCP), you should be familiar with the differentiated services model (Diffserv). Diffserv is a Class of Service (CoS) model that enhances best-effort Internet services by differentiating individual user traffic, service requirements and other criteria. Packets are specifically marked, allowing network nodes to provide different levels of service via priority queuing or bandwidth allocation, or by choosing dedicated routes for specific traffic flows. As displayed in following diagram, the IPV4 packet has a TOS field. Diffserv defines TOS field in IP packet headers referred to as DSCP. Hosts or routes that pass traffic to a Diffserv-enabled network typically mark each transmitted packet with an appropriate DSCP. The DSCP markings are used by Diffserv network routers to appropriately classify packets and to apply particular queue handing or scheduling behavior. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 58: Routing

    If you select Enable Automatic Assigned Default Gateway, this router can accept the first received default gateway assignment from one of the PPPoA, PPPoE or MER/DHCP enabled PVC(s). If the check box is not selected, you must enter the static default gateway and/or a WAN interface. Then, click Save/Apply. Note: If the Automatic Assigned Default Gateway check box is changed from deselected to selected, you must reboot the router to obtain the automatic assigned default gateway. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 59: Static Route

    Gateway: The gateway that the packets pass by during transmission. Interface: The interface that the packets pass through on the modem. Click Add and the following page will appear. Enter the destination network address, subnet mask, gateway AND/ OR available WAN interface, then click Save/Apply to add the entry to the routing table. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 60: Rip

    Section 9 - Advanced Setup To activate RIP for the device, select the Enabled radio button for Global RIP Mode. To configure an individual interface, select the desired RIP version and operation, followed by placing a check in the Enabled checkbox for the interface. Click the Save/ Apply button to save the configuration, and to start or stop RIP based on the Global RIP mode selected. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 61: Dns

    (optional) DNS server IP addresses. The interface is as follows. Click Save to save the new configuration. Note: You must reboot the router to make the new configuration take effect. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 62: Dynamic Dns

    The Dynamic DNS service allows you to alias a dynamic IP address to a static hostname in any of the many domains, allowing your DSL router to be more easily accessed from various locations on the Internet. Click Add to add Dynamic DNS Add dynamic DNS Enter your information in the spaces provided and click Save. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 63: Dsl

    The DSL settings page contains modulation and capability settings. Consult your ISP to determine the correct settings. Click Apply if you are finished or click on Advanced Settings if you want to configure other advanced settings. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 64: Advanced Settings

    256 separate modems were running in parallel. The tone range is from 0 to 31 for upstream and from 32 to 255 for downstream. Do not change these settings unless directed by your ISP. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 65: Mac Clone

    Section 9 - Advanced Setup MAC Clone This page allosw you to clone the MAC address on your router. This is needed when adding a router to your network in order to share your internet connection. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 66: Diagnostics

    Section 10 - Diagnostics Diagnostics The diagnostics screen allows you to run diagnostic tests to check your DSL connection. The results will show test results of two connections: • Connection to your local network • Connection to your DSL service provider Click Run Diagnostic Tests to begin. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 67: Management

    The Backup Settings button allows you to save your router configuration to a file on your computer so that it may be accessed again later. This feature is useful if you have changed the configuration on the router, but would like to revert to a previous configuration. To save your current configuration, click the Backup Settings button. The following pop-up screen will appear with a prompt to open or save the file to your computer. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 68: Update

    Section 11 - Management Update To load a previously saved configuration file onto your router, click Browse, select the file on your computer and then click on Update Settings. The router will restore settings and reboot to activate the restored settings. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 69: Restore Default

    Restore Default Settings will delete all current settings and restore the router to factory default settings. Click on the Restore Default Settings button to proceed. The following confirmation dialog will appear confirming your decision to restore default settings. Click on OK to continue. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 70: System Log

    Both the log level and display level have eight choices. The default log level is Debugging and the default display level is Error. The mode options are Local, Remote, and Both. The default is Local. If you select Remote or Both, all events are transmitted to the specified UDP port of the specified log server. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 71: System Log Configuration

    Section 11 - Management System Log Configuration From the configuration screen, set the log to Enable, select the Log Level, Display Level and Mode. If the selected mode is “ Remote” or “ Both”, events will be sent to a specified IP address and UDP port of a remote system log server. If the selected mode is “Local” or “Both”, events will be recorded and viewed locally. Select the desired values and click Apply to save the system log options. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 72: Tr-069 Client

    Section 11 - Management TR-069 Client WAN Management Protocol (TR-069) allows a Auto-Configuration Server (ACS) to perform auto-configuration, provision, collection and diagnostics to this device. If you wish to enable this protocol, then select enable. Contact your ISP to determine the ACS URL, ACS User Name, and ACS Password. You must click on the Save/Reboot button for the change to take place. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 73: Internet Time

    The Time Settings page allows you to automatically synchronize your time with a time server on the Internet. To set the modem’s time, click on the automatically synchronize with Internet time servers checkbox. Additional time settings will appear below the checkbox. Select from the list of NTP (Network Time Protocol) time servers. Then select the time zone that you are in and click Apply to save. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 74: Access Control-Services

    (Internet Control Message Protocol) supports packets containing er ror, control, and informational messages. Telnet: A standard Internet protocol for accessing remote systems. TFTP: (Trivial File Transfer Protocol) A very simple form of the File Transfer Protocol (FTP). D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 75: Access Control-Ip Address

    Enter the IP address of the management station permitted to access the local configuration and click Apply. This will return you to the previous screen where you can enable access control. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 76: Access Control-Passwords

    Section 11 - Management Access Control—Passwords Access to your DSL router is controlled through three user accounts: Admin, Support, and User. “Admin” has unrestricted access to change and view configuration. “Support” is used to allowed an ISP technician to access your DSL router for maintenance and to run diagnostics. For “User”, the user name can access the DSL router to view configuration settings, statistics, and update router’s software. To change or create passwords, use the fields below and enter up to 16 characters. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 77: Update Software

    Section 11 - Management Update Software You can update your software through this screen. Follow the screen’s steps. Select Browse to search for your software file and Update Software. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 78: Save And Reboot

    Section 11 - Management Save and Reboot When clicking the Save/Reboot button, it will save all configuration changes made on the modem and restart the device. All new configuration settings will take effect when the modem starts up again. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 79: Troubleshooting

    Section 12 - Troubleshooting Troubleshooting This chapter provides solutions to problems that can occur during the installation and operation of the DSL-520B. Read the following descriptions if you are having problems. (The examples below are illustrated in Windows XP. If you have a different operating system, the screenshots on your ® computer will look similar to the following examples.) 1. Why can’t I access the web-based configuration utility? When entering the IP address of the D-Link modem (192.168.1.1 for example), you are not connecting to a website on the Internet or have to be connected to the Internet.
  • Page 80 10 seconds. Release the button and the modem will go through its reboot process. Wait about 30 seconds to access the modem. For information about logging into the modem see page 16. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 81: Networking Basics

    Some firewall software programs may block a DHCP request on newly installed device. If you are connecting to a wireless network at a hotspot (e.g. hotel, coffee shop, airport), please contact an employee or administrator to verify their wireless network settings. Check your MAC address Click on Start > Run. In the run box type cmd and click OK. At the prompt, type ipconfig /all and press Enter. This will display information about all installed adapters on your computer. Your MAC address is listed as the “Physical Address” and should look like xx-xx-xx-xx-xx-xx or xx:xx:xx:xx:xx:xx D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 82: Statically Assign An Ip Address

    2000 - From the desktop, right-click My Network Places > Properties. Windows ® 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 Properties. Step 4 Click Use the following IP address and enter an IP address that is on the same subnet as your network or the LAN IP address on your modem.

  • Page 83: Contacting Technical Support

    Appendix B - Contacting Technical Support Contacting Technical Support U.S. and Canadian customers can contact D-Link technical support through our web site or by phone. Before you contact technical support, please have the following ready: • Model number of the product (e.g. DSL-520B) • Hardware Revision (located on the label on the bottom of the modem (e.g. rev T1)) • Serial Number (s/n number located on the label on the bottom of the modem). You can find software updates and user documentation on the D-Link website as well as frequently asked questions and answers to technical issues. For customers within the United States: For customers within Canada: Phone Support: Phone Support:...

  • Page 84: Warranty

    Hardware during the Warranty Period at no charge to the original owner or to refund the actual purchase price paid. Any repair or replacement will be rendered by D-Link at an Authorized D-Link Service Office. The replacement hardware need not be new or have an identical make, model or part. D-Link may, at its option, replace the defective Hardware or any part thereof with any reconditioned product that D-Link reasonably determines is substantially equivalent (or superior) in all material respects to the defective Hardware. Repaired or replacement hardware will be warranted for the remainder of the original Warranty Period or ninety (90) days, whichever is longer, and is subject to the same limitations and exclusions. If a material defect is incapable of correction, or if D-Link determines that it is not practical to repair or replace the defective Hardware, the actual price paid by the original purchaser for the defective Hardware will be refunded by D-Link upon return to D-Link of the defective Hardware. All Hardware or part thereof that is replaced by D-Link, or for which the purchase price is refunded, shall become the property of D-Link upon replacement or refund. Limited Software Warranty: D-Link warrants that the software portion of the product (“Software”) will substantially conform to D-Link’s then current functional specifications for the Software, as set forth in the applicable documentation, from the date of original retail purchase of the Software for a period of ninety (90) days (“Software Warranty Period”), provided that the Software is properly installed on approved hardware and operated as contemplated in its documentation. D-Link further warrants that, during the Software Warranty Period, the magnetic media on which D-Link delivers the Software will be free of physical defects. The customer’s sole and exclusive remedy and the entire liability of D-Link and its suppliers under this Limited Warranty will be, at D-Link’s option, to replace the non-conforming Software (or defective media) with software that substantially conforms to D-Link’s functional specifications for the Software or to refund the portion of the actual purchase price paid that is attributable to the Software.
  • Page 85 Period and is subject to the same limitations and exclusions. If a material non-conformance is incapable of correction, or if D-Link determines in its sole discretion that it is not practical to replace the non-conforming Software, the price paid by the original licensee for the non-conforming Software will be refunded by D-Link; provided that the non-conforming Software (and all copies thereof ) is first returned to D-Link. The license granted respecting any Software for which a refund is given automatically terminates. Non-Applicability of Warranty: The Limited Warranty provided hereunder for Hardware and Software portions of D-Link’s products will not be...
  • Page 86 PROFIT, WORK STOPPAGE, COMPUTER FAILURE OR MALFUNCTION, FAILURE OF OTHER EQUIPMENT OR COMPUTER PROGRAMS TO WHICH D-LINK’S PRODUCT IS CONNECTED WITH, LOSS OF INFORMATION OR DATA CONTAINED IN, STORED ON, OR INTEGRATED WITH ANY PRODUCT RETURNED TO D-LINK FOR WARRANTY SERVICE) RESULTING FROM THE USE OF THE PRODUCT, RELATING TO WARRANTY SERVICE, OR ARISING OUT OF ANY BREACH OF THIS LIMITED WARRANTY, EVEN IF D-LINK HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. THE SOLE REMEDY FOR A BREACH OF THE FOREGOING LIMITED WARRANTY IS REPAIR, REPLACEMENT OR REFUND OF THE DEFECTIVE OR NON-CONFORMING PRODUCT. THE MAXIMUM LIABILITY OF D-LINK UNDER THIS WARRANTY IS LIMITED TO THE PURCHASE PRICE OF THE PRODUCT COVERED BY THE WARRANTY. THE FOREGOING EXPRESS WRITTEN WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ANY OTHER WARRANTIES OR REMEDIES, EXPRESS, IMPLIED OR STATUTORY. Governing Law: This Limited Warranty shall be governed by the laws of the State of California. Some states do not allow exclusion or limitation of incidental or consequential damages, or limitations on how long an implied warranty lasts, so the foregoing limitations and exclusions may not apply. This Limited Warranty provides specific legal rights and you may also have other rights which vary from state to state.
  • Page 87 Copyright Statement: No part of this publication or documentation accompanying this product may be reproduced in any form or by any means or used to make any derivative such as translation, transformation, or adaptation without permission from D-Link Corporation/D-Link Systems, Inc., as stipulated by the United States Copyright Act of 1976 and any amendments thereto. Contents are subject to change without prior notice. Copyright 2008-2009 by D-Link Corporation/D-Link Systems, Inc. All rights reserved. CE Mark Warning: This is a Class B product. In a domestic environment, this product may cause radio interference, in which case the user may be required to take adequate measures. FCC Statement: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communication. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help. For detailed warranty information applicable to products purchased outside the United States, please contact the corresponding local D-Link office. D-Link DSL-520B ADSL2+ Modem User Manual...

  • Page 88: Registration

    Appendix D - Registration Registration Product registration is entirely voluntary and failure to complete or return this form will not diminish your warranty rights. Version 1.0 July 29, 2010 D-Link DSL-520B ADSL2+ Modem User Manual...

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