D-Link DSL-2640B User Manual
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D-Link DSL-2640B User Manual

Adsl2+ wireless router
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  • Page 2: Table Of Contents

    Wireless--Advanced ......... 58 Dynamic DNS ............31 Wireless--MAC Filter ........60 Logout ..............3 Wireless--Bridge ..........61 Advanced Setup ............33 Wireless--QoS ..........6 ADSL ..............33 Tools ................63 ADSL Settings ..........34 D-Link DSL-640B ADSL+ 4-Port Router User Manual...
  • Page 3 WAN Info ..............75 Route Info .............. 75 Log ................. 76 LAN ................ 76 WAN ..............77 ATM ................ 78 ADSL ..............79 ADSL BER Test............80 Wireless Station Info ..........8 Troubleshooting ............83 D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 4: General Information

    • Quick Install Guide • Documentation CD-ROM (QIG + user manual) Note: Using a power supply with a different voltage rating than the one included with the DSL-2640B will cause damage and void the warranty for this product. Important Safety Instructions •...

  • Page 5: Front Panel View

    A solid light indicates a connection to an wireless is operational. A flashing Ethernet-enabled computer on ports 1-4. traffic is passing through. green light indicates wireless traffic This LED blinks during data transmission. is passing through the router. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 6: Rear Panel View

    Reset Power Receptor Pressing the Reset button for 5 seconds restores Receptor for the supplied power the router to its original factory default settings. adapter. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 7: Installing The Router

    Ethernet port (labeled LAN) on the router. Note that either a crossover or straight-through Ethernet cable can be used. The router automatically recognizes the type of connection that is required. D-Link DSL-640B ADSL+ 4-Port Router User Manual...
  • Page 8 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-640B ADSL+ 4-Port Router User Manual...

  • Page 9: Configuring Your Computer

    4. If Internet Protocol (TCP/IP) does not appear as an installed component, then click on Install. 5. In the Select Network Component Type window, click on protocol and then the Add button. 6. Select Internet Protocol (TCP/IP) from the list and then click on OK. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 10: Windows ® Xp

    IP address and type 19.168.1.x (where x is any number between  and 54) for the IP address field and 55.55.55.0 for the Subnet Mask field. 5. Click on OK twice to save your changes and then close the Control Panel. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 11: Log In To The Router

    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-640B ADSL+ 4-Port Router User Manual...

  • Page 12: Home

    To enable the auto-connect process, click on the box labeled DSL Auto-connect, a process that will automatically detect the first usable PVC and automatically detect PPPoE, PPPoA, and Bridge Protocol (with DHCP Server available). To continue, click on the Next button. D-Link DSL-640B ADSL+ 4-Port Router User Manual...
  • Page 13 If you uncheck the DSL Auto-connect box, more options will appear below the check box. Enter the VPI/VCI values as indicated by your ISP. There is also an option to enable Quality of Service. When you are ready, click Next to continue. D-Link DSL-640B ADSL+ 4-Port Router User Manual...
  • Page 14 PPPoA over ATM and IP over ATM). Select this option if required by your ISP. The following is a PPPoA example. Click Next to continue. Select an appropriate network protocol and encapsulation mode. Click Next to continue. D-Link DSL-640B ADSL+ 4-Port Router User Manual...
  • Page 15 Enter the PPP username and password given to you by your ISP. Then decide if you will be using any features such as dial on demand, PPP IP extension, keep alive and then click Next. D-Link DSL-640B ADSL+ 4-Port Router User Manual...
  • Page 16 Section 5 - Home The next step is to configure the Network Address Translation (NAT) settings. For the example, NAT will be enabled. Leave the remaining fields at their defaults and click Next to continue. D-Link DSL-640B ADSL+ 4-Port Router User Manual...
  • Page 17 IP addresses that the DHCP server can assign to your computers. Disable the DHCP server if you would like to manually assign IP addresses. Click Next to continue. D-Link DSL-640B ADSL+ 4-Port Router User Manual...
  • Page 18 This next screen will allow you to enable the wireless function of your router. If you enable wireless, be sure to enter a wireless network name (SSID) to identify your wireless connection. You will need to know the wireless network name (SSID) to connect any wireless computers on your network to your router. D-Link DSL-640B ADSL+ 4-Port Router User Manual...
  • Page 19 After all WAN configurations are complete, the WAN Setup Summary screen displays all WAN settings that you have made. Check that the settings are correct before clicking on the Save / Reboot button. Clicking on Save / Reboot will save your settings and restart your router. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 20: Wireless

    (SSID) field and have selected your country from the drop-down list. Click Apply to save your changes. Click Security to proceed to the wireless security section. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 21: Security

    Network re-auth interval is the time in which another key needs to be dynamically issued. WPA2-PSK: (Wi-Fi Protected Access  – Pre-Shared Key)—suitable for home and SOHO environments, it also uses AES encryption and requires you to enter a password and an re-key interval time. D-Link DSL-640B ADSL+ 4-Port Router User Manual...
  • Page 22 Useful during transitional times for upgrades in the home or SOHO environment, a pre-shared key must be entered along / WPA-PSK: with the group re-key interval time. Both TKIP and AES are also used. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 23: Wan

    WAN interface and to proceed to the ATM PVC Configuration screen as seen on page 5. The ATM PVC Configuration screen allows you to configure an ATM PVC identifier (VPI and VCI) and select a service category. D-Link DSL-640B ADSL+ 4-Port Router User Manual...
  • Page 24 Used by time-sensitive applications such as real-time video. Rt-VBR service allows the network more Variable Bit Rate): flexibility than CBR. Quality of Can be enabled only for UBR without PCR, UBR with PCR, and Non Realtime VPR. Service: D-Link DSL-640B ADSL+ 4-Port Router User Manual...
  • Page 25 Enable 80.1q checkbox and then enter the VLAN ID number. When finished with your selections, click Next to continue. Note: These settings are ISP dependant. For information regarding proper configuration, contact your ISP. D-Link DSL-640B ADSL+ 4-Port Router User Manual...
  • Page 26 Internet. If selected, you will be asked to enter the static IP address. Note: These settings are ISP dependant. For information regarding proper configuration, contact your ISP. When finished, click Next to proceed to the NAT Settings screen. D-Link DSL-640B ADSL+ 4-Port Router User Manual...
  • Page 27 When finished, click the Next button and the following WAN summary screen will be displayed. This screen will outline all WAN settings for review. When satisfied with the settings click the Apply button. D-Link DSL-640B ADSL+ 4-Port Router User Manual...
  • Page 28 When the router restarts the DSL Router Reboot screen will appear during the reboot process. Close the DSL Configuration window and wait at least two minutes before reopening your web browser. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 29: Lan

    The Save button only saves the LAN configuration data, but does not apply the configuration. Select the Save/Reboot button to save the LAN configuration data, reboot the router and apply the new configuration. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 30: Dns

    If you uncheck the Enable Automatic Assigned DNS checkbox, two additional fields will appear (primary and secondary DNS server). Enter one primary and one secondary DNS address in each field. Click Apply to save the configuration. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 31: Dynamic Dns

    DNS address. Enter the hostname and the interface that you are using. Also enter the username and password assigned by the DNS service. Click on Apply to save these configurations. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 32: Logout

    Logout To log out of the router’s user interface at any time during the setup, click on the Logout button. A confirmation screen will appear confirming that you really want to log out. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 33: Advanced Setup

    The ADSL 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 more advanced settings. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 34: Adsl Settings

    The test mode can be selected from the ADSL Advanced Settings page. Test modes include normal, reverb, medley, no retrain, and L3. After you make your selection, click on Apply to save these settings first before you go to Tone Selection. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 35: Adsl Tone Settings

    56 separate routers were running in parallel. The tone range is from 0 to 31 for upstream and from 3 to 55 for downstream. Do not change these settings unless directed by your ISP. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 36: Virtual Server

    Internet (e.g. peer-to-peer, games, etc.). This figure shows the Virtual Servers Setup page that allows you to configure your virtual server(s). Click on the Add button to configure a virtual server. D-Link DSL-640B ADSL+ 4-Port Router User Manual...
  • Page 37 To determine your IP address see Networking Basics in the Appendix section of this manual. Once you are satisfied with your selection, click Apply once. D-Link DSL-640B ADSL+ 4-Port Router User Manual...
  • Page 38 The following screen appears after you save your selection. To add additional virtual servers, click on the Add button. If you need to remove any of the server names, select its check box in the Remove column and click on the Remove button. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 39: Dmz

    You can define the IP address of the DMZ Host on this screen. The DMZ is used to forward all IP packets coming into the router to a specified IP address. Enter the IP address and click Apply. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 40: Ip Filter

    Incoming IP Filtering Setup An Incoming IP filter allows you to specify which WAN traffic is allowed to pass through the firewall. Click on the Add button to add incoming filter settings. D-Link DSL-640B ADSL+ 4-Port Router User Manual...
  • Page 41 This next screen will appear when you click Add. Enter the filter name, select the Protocol, enter source information (from the WAN side), and destination information (to the LAN side). Make sure at least one or multiple WAN interfaces are selected to apply the rule. Click Apply to save. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 42: Outgoing Ip Filtering Setup

    Outgoing IP Filtering Setup An Outgoing IP filter allows you to specify which LAN traffic is blocked from passing through to the WAN side (Internet). Click on the Add button to add outgoing filter settings. D-Link DSL-640B ADSL+ 4-Port Router User Manual...
  • Page 43 IP filter. The screen lists the IP filters that were added from the previous screen. To add another filter click Add. To remove any previously created filter, place a checkmark next to the filter in the “Remove” column and click Remove. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 44: Bridge Filters

    Blocked means all MAC layer frames will be blocked except those matching any specified rules. If you click Change Policy, a confirmation dialog allows you to verify your change. Select Yes to continue, or No to to cancel. D-Link DSL-640B ADSL+ 4-Port Router User Manual...
  • Page 45 Click Apply to save. After you save the settings, a screen showing the settings will appear. On this screen you will be able to add, view and delete MAC filtering rules. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 46: Parental Control

    Enter a start and end blocking time. To determine the MAC address of a computer see “Networking Basics” in the Appendix section of this manual. Click Apply to save the settings and continue. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 47: Routing

    3 entries can be configured). To proceed, click on Add. On the Static Route Add page, enter the destination network address, subnet mask, gateway IP address, and select an available WAN interface. When complete, click Apply. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 48: Routing--Default Gateway

    This shows the Default Gateway screen when the Enable Automatic Assigned Default Gateway is unchecked. Enter a gateway IP in the Use Default Gateway IP Address field and/or select a WAN Interface. When ready, click Apply. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 49: Rip

    If RIP is set to active, the router will advertise its routes (reachability information) to others; if RIP is set to passive, the router will not advertise its routes, but will listen and update its routes based on other routers’ advertisements. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 50: Quality Of Service

    This ensures that time sensitive data (e.g. video streaming) is given priority over other non-essential data. You can configure the Quality of Service to apply different priorities to traffic on the router. Click Add to view the Add Network Traffic Class Rule screen. D-Link DSL-640B ADSL+ 4-Port Router User Manual...
  • Page 51 This screen allows you to add a network traffic class rule. A rule consists of a traffic class name and at least one condition. All configured conditions must first be met before the rule takes effect. Click Apply to save any changes. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 52: Port Mapping

    Click on the Add button to create a mapping group. If you need to remove an entry, select the checkbox in the remove column next to the desired group and click the Remove button. D-Link DSL-640B ADSL+ 4-Port Router User Manual...
  • Page 53 Note: Any DHCP client request with the specified DHCP vendor ID will be denied an IP address from the local DHCP server. These clients may obtain public IP addresses from your ISP. Click Apply when finished. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 54: Certificate

    To apply for a certificate, click on Create Certificate Request. If you have an existing certificate, click on Import Certificate to retrieve it. D-Link DSL-640B ADSL+ 4-Port Router User Manual...
  • Page 55 Import your existing certificate by pasting the certificate content into the Certificate field and paste the private key into the Private Key field. Click Apply to submit the request to import the certificate. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 56: Trusted Ca

    Click Import Certificate to continue to the next screen. Enter the certificate name in the Certificate Name field. Paste the content of the certificate that you wish to add in the Certificate field and click Apply. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 57: Wireless

    APs. The Wireless -- QoS section allows you to configure the wireless quality of service for the router. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 58: Wireless--Advanced

    A Beacon is a packet of information that is sent from a connected device to all other devices where it announces its availability and readiness. A beacon interval is a period of time (sent with the beacon) before sending the beacon again. The beacon interval may be adjusted in milliseconds (ms). D-Link DSL-640B ADSL+ 4-Port Router User Manual...
  • Page 59 High network traffic areas should select Short preamble type. Transmit Power: This is the percentage of power that should be transmitted from your wireless router. Select from 0%, 40%, 60%, 80%, and 100%. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 60: Wireless--Mac Filter

    Enter a MAC address of a computer on your network and click Apply. To determine the MAC address of a computer see “Networking Basics” in the Appendix section of this manual. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 61: Wireless--Bridge

    Enabled(scan) only those bridges whose Address: MAC addresses appear in these fields will be granted access. Click Refresh to update the Remote Bridges MAC Address fields. Click Save/Apply to save the wireless bridge options. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 62: Wireless--Qos

    To create a QoS entry, click the Add QoS Entry button to proceed to add or remove traffic class rules for your network. Click on Save/Apply WME Settings. See the “QoS” section on page 51 for more information. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 63: Tools

    Click the Admin button to change the routers account passwords. Click the Services button to configure what services are allowed to pass through the router. Click the IP Address button to define who is permitted access to local management features. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 64: Access Control-Admin

    (Simple Network Management Protocol) A protocol used for network management and monitoring network devices. 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-640B ADSL+ 4-Port Router User Manual...

  • Page 65: 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-640B ADSL+ 4-Port Router User Manual...

  • Page 66: Time

    Internet time servers checkbox. Addional 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-640B ADSL+ 4-Port Router User Manual...

  • Page 67: Remote Log

    If the log is enabled, the system will log selected events including Emergency, Alert, Critical, Error, Warning, Notice, Informational, and Debugging. All events above or equal to the selected log level will be logged and displayed. System log when log is enabled. D-Link DSL-640B ADSL+ 4-Port Router User Manual...
  • Page 68 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-640B ADSL+ 4-Port Router User Manual...

  • Page 69: Tr-069 Client

    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-640B ADSL+ 4-Port Router User Manual...

  • Page 70: System

    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-640B ADSL+ 4-Port Router User Manual...

  • Page 71: Update Settings

    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-640B ADSL+ 4-Port Router User Manual...

  • Page 72: Firmware

    1. Obtain an updated software image file (firmware) from your ISP. . Enter the path of the image file location or click the Browse button to locate the image file. 3. Click the Update Software button once to upload the new image file. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 73: Test

    There are three buttons at the bottom of the page; Next Connection (appears only if you have created more than one connection), Test and Test with OAM F4 (which will allow you to retest if necessary). D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 74: Status

    Status. This shows the computers, identified by the hostname and MAC address, that have acquired IP addresses by the DHCP server. The table will also show the time the DHCP lease will expire. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 75: Wan Info

    ADSL Link Down or ADSL Link Up. Route Info 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-640B ADSL+ 4-Port Router User Manual...

  • Page 76: Log

    This is the same screen as seen in the Remotelog section under tools. The LAN section shows received and transmitted packet information for the Ethernet interface. Click on Reset Statistics to renew the information. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 77: Wan

    Section 8 - Status 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-640B ADSL+ 4-Port Router User Manual...

  • Page 78: Atm

    Section 8 - Status 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-640B ADSL+ 4-Port Router User Manual...

  • Page 79: Adsl

    Section 8 - Status ADSL Information contained in the ADSL screen is useful for troubleshooting and diagnosing connection problems. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 80: Adsl Ber Test

    When you start the ADSL BER Test, the following progress window will display the connection speed as well as the length of time that the test will run for. At any time during the test, click on the Stop button to terminate the test. D-Link DSL-640B ADSL+ 4-Port Router User Manual...
  • Page 81 Section 8 - Status When the test is complete, the following window will display the test results showing the test time, total transferred bits, total error bits and error ratio. Click Exit to close the window. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 82: Wireless Station Info

    Section 8 - Status Wireless Station Info This page displays the stations (identified by their BSSID) that are associated with your wireless router. Click on Refresh to renew the page for new wireless stations. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 83: Troubleshooting

    1. Why can’t I access the web-based configuration utility? When entering the IP address of the D-Link router (19.168.1.1 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 84 • 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 your the web management.

  • Page 85: Wireless Basics

    Strictly adhering to the IEEE standard, the D-Link wireless family of products will allow you to securely access the data you want, when and where you want it. You will be able to enjoy the freedom that wireless networking delivers.

  • Page 86: What Is Wireless

    Why D-Link Wireless? D-Link is the worldwide leader and award winning designer, developer, and manufacturer of networking products. D-Link delivers the performance you need at a price you can afford. D-Link has all the products you need to build your network.
  • Page 87 Who uses wireless? Wireless technology as become so popular in recent years that almost everyone is using it, whether it’s for home, office, business, D-Link has a wireless solution for it. Home • Gives everyone at home broadband access •...

  • Page 88: Tips

    The wireless connection in public places is usually called “hotspots”. Using a D-Link Cardbus Adapter with your laptop, you can access the hotspot to connect to Internet from remote locations like: Airports, Hotels, Coffee Shops, Libraries, Restaurants, and Convention Centers.

  • Page 89: Wireless Modes

    An Infrastructure network contains an Access Point or wireless router. All the wireless devices, or clients, will connect to the wireless router or access point. An Ad-Hoc network contains only clients, such as laptops with wireless cardbus adapters. All the adapters must be in Ad-Hoc mode to communicate. D-Link DSL-640B ADSL+ 4-Port Router User Manual...

  • Page 90: 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 (i.e. wireless router) automatically. To verify your IP address, please follow the steps below.

  • Page 91: Statically Assign An Ip Address

    000 - From the desktop, right-click 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 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 router.

  • Page 92: Contacting Technical Support

    • Hardware Revision (located on the label on the bottom of the router (e.g. rev A1)) • Serial Number (s/n number located on the label on the bottom of the router). You can find software updates and user documentation on the D-Link website as well as frequently asked questions and answers to technical issues.

  • Page 93: Warranty

    (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.
  • Page 94 Appendix C - Warranty D-Link may reject or return any product that is not packaged and shipped in strict compliance with the foregoing requirements, or for which an RMA number is not visible from the outside of the package. The product owner agrees to pay D-Link’s reasonable handling and return shipping charges for any product that is not packaged and shipped in accordance with the foregoing requirements, or that is determined...

  • Page 95: 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 September 6, 006 D-Link DSL-640B ADSL+ 4-Port Router User Manual...

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