Instruction/ maintenance manual of the product TD-8840T TP-Link
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TD-8840T ADSL2+ Modem Router 1910010648 Rev: 4.0.0.
COPYRIGHT & TRADEMARKS Specifications are subjec t to change without notice. is a registered trademark of TP-LINK TECHNOLOGIES CO., L TD. Other brands and product names are trademarks or registered trademarks of t heir respective holders.
FCC STATEMENT This equipment has been tested and found to comply wi th 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.
TP-LINK TECHNOLOGIES CO., L TD TP-LINK TECHNOLOGIES CO., L TD Building 24 (floors 1, 3, 4, 5), and 28 (floors 1-4) Central Science and Technology Park, Shennan Rd, Nanshan, Shenzhen, China DECLARA TION OF CONFORMITY For the following equipment: Product Description: ADSL2+ Modem Router Model No.
CONTENTS Package Cont ents .................................................................................................... 1 Chapter 1. Product Over view ................................................................................... 2 1.1 Overview of the Modem Router .
4.6.3 RIP Se ttings ................................................................................................................... .... 35 4.7 Forwarding ............................................................................................
TD-8840T ADSL2+ Modem Router User Guide 1 Package Content s The following contents should be found in your package: ¾ One TD-8840T ADSL2+ Modem Router ¾ One Power Adapter for TD-8840T ADSL2+ Modem R.
TD-8840T ADSL2+ Modem Router User Guide 2 Chapter 1. Product Overview Thank you for choosing the TD-8840T ADSL2+ Modem Router . 1.1 Overview of the Modem Router The device is designed to provide a simple and cost-effective ADSL Internet connection for a private Ethernet network.
TD-8840T ADSL2+ Modem Router User Guide 3 1.2 Main Features ¾ 4 10/100M RJ45 LAN ports (A uto MDI/MDIX), 1 RJ11 port. ¾ Downstream data rates up to 24Mbps, upstream data rates up to 3.5Mbps （ With Annex M enabled ） . ¾ Supports long transfers, the max line length can reach to 6.
TD-8840T ADSL2+ Modem Router User Guide 4 1.3 Panel Layout 1.3.1 The Front Panel Figure 1-1 The Router’s LEDs are located on the front panel (V iew from left to right). They indicate the device’s working status. For details, please refer to LED Explanation.
TD-8840T ADSL2+ Modem Router User Guide 5 ¾ POWER: The Power socket is where the power adapter connects to. ¾ ON/OFF: The switch for the power. ¾ RESET: There are two ways to reset t he Router's factory defaults. Method one: With the Router powered on, use a pin to press and hold the Reset button for at least 5 seconds.
TD-8840T ADSL2+ Modem Router User Guide 6 Chapter 2. Connecting the Modem Router 2.1 Inst allation Environment ¾ The Product should not be locat ed where it will be exposed to moisture or excessive heat. ¾ Place the Ro uter in a location where it can be c onnected to the vario us devices as well as to a power source.
TD-8840T ADSL2+ Modem Router User Guide 7 2.2 Connecting the Modem Router Before installing the device, please make sure y our broadband service provided by your ISP is available. If there is any problem, please contact your ISP. Before cabl e connection, cut off the power supply and keep your hands dr y.
TD-8840T ADSL2+ Modem Router User Guide 8 Chapter 3. Quick Inst allation Guide 3.1 Configuring the PC After you directly connect your PC to the Modem Router or connect your adapter to a Hub/Switch which has connected to t he Modem Router, you need to confi gur e your PC’s IP address.
TD-8840T ADSL2+ Modem Router User Guide 9 Figure 3-2 Step 3: Select General tab, highlight Internet Protocol (TCP/IP) , and then click the Properties button.
TD-8840T ADSL2+ Modem Router User Guide 10 Step 4: Configure the IP address as Figure 3-4 shows. After that, click OK . Figure 3-4 ) Note: You can configure the PC to get an IP address automatically, select “Obtain an IP address automatically” and “Obtain DNS server addre ss automatically” in the screen above.
TD-8840T ADSL2+ Modem Router User Guide 11 If the result displayed is similar to the screen shown belo w, it means t hat your PC has not connected to the Modem Router.
TD-8840T ADSL2+ Modem Router User Guide 12 Figure 3-8 ) Note: 1) Do not mix up the user name and password with your ADSL account user name and password which are needed for PPP connections. 2) If the above screen does not pop up, it means that your Web-br owser has been set to a proxy.
TD-8840T ADSL2+ Modem Router User Guide 13 Figure 3-9 3. Change the VPI or VCI values which are used to define a unique path for your connection. If you have been given specific settings for this to configuration, type in the correct values assigned by your ISP.
TD-8840T ADSL2+ Modem Router User Guide 14 Figure 3-11 5. On this page, please conf irm all parameters. Click Previous to modify or click the Save button to make the configuration take effect. Figure 3-12 6. You will see the Complete screen below, click Finish to complete these settings.
TD-8840T ADSL2+ Modem Router User Guide 15 Chapter 4. Configuring the Modem Router This chapter will show each Web page's key function and the c onfiguration way. 4.1 Login After your successful login, you will see the fift een main menus on the left of the Web-based utility.
TD-8840T ADSL2+ Modem Router User Guide 16 Figure 4-1 4.3 Quick Setup Please refer to Section 3.2 Login . 4.4 Network Choose “ Netw ork ”, there are many submenus under the main menu. Click any one of them, and you will be able to configur e the corresponding function.
TD-8840T ADSL2+ Modem Router User Guide 17 4.4.1 WAN Settings Choose “ Netw ork ” Æ “ WAN Settings ”, and you will see the WAN Port Information Table in the screen similar to Figure 4-2 , which describes the WAN port setti ngs and the relevant manipulation to each interface.
TD-8840T ADSL2+ Modem Router User Guide 18 Figure 4-3 4.4.1.1 Static IP Select this option if your ISP prov ides static IP information to you. You should set static IP address, IP subnet mask, and gateway address in the screen below.
TD-8840T ADSL2+ Modem Router User Guide 19 Figure 4-4 ATM Configuration: ¾ VPI (0~255): Identifies the virtual path between endpoints in an ATM network. The valid range is from 0 to 255. Please input the value provided by your ISP. ¾ VCI (1~65535): Identifies the virtual channel endpoints in an ATM network.
TD-8840T ADSL2+ Modem Router User Guide 20 ¾ Default Gatewa y: select a WAN Interface from the drop-down list as the IPv4 default gateway. ¾ MTU (bytes): Maximum Transmission Unit Size. Check this box then you can change the MTU size. The default MTU value is 1500 Bytes.
TD-8840T ADSL2+ Modem Router User Guide 21 Figure 4-5 Click Advanced , advanced selections for WAN Service Setup can be shown. ¾ MTU (bytes): Maximum Transmission Unit Size. Check this box then you can change the MTU size. The default MTU value is 1500 Bytes.
TD-8840T ADSL2+ Modem Router User Guide 22 ¾ Primary DNS Server/ Secondary DNS Server: Choose “Set DNS Server manually”, you can set DNS Server (at least one) manually here. T he Route will use this DNS Server for priority. Click the Save button to save the settings.
TD-8840T ADSL2+ Modem Router User Guide 23 ¾ Choose the right connection type according to your needs: For PPPoE connection, you can select Connect on demand or Connect automatically or Connect manually . Connect on demand is dependent on the traffic.
TD-8840T ADSL2+ Modem Router User Guide 24 4.4.1.5 IPoA If your ISP provides an IPoA connection, select IPoA option for the WAN service t ype on the screen. Figure 4-8 ¾ IP Address/Subnet Mask: Enter the IP Address and Subnet Mask provided by ISP. If you forget, you can ask your ISP.
TD-8840T ADSL2+ Modem Router User Guide 25 Figure 4-9 ) Note: After you finish the Internet configuration, please click Save to m ake the settings take e ffe ct. 4.4.2 Interface Grouping Choose “ Network ” Æ “ Interface Grouping ”, you can view all the current groups on this page (shown in Figure 4-10 ).
TD-8840T ADSL2+ Modem Router User Guide 26 To support this feature, you must create mapping groups with appropriate LAN and WAN interfaces using the Add button. The Remove button will remove the grouping and add the ungrouped interfaces to the Default group.
TD-8840T ADSL2+ Modem Router User Guide 27 ¾ IP Address: You can configure the Modem Router’s IP Address and Subnet Mask for LAN Interface. • IP Address: Enter the Modem Router’s local IP A ddress, then you can access to the Web-based Utility via the IP Addre ss, the default val ue is 192.
TD-8840T ADSL2+ Modem Router User Guide 28 Figure 4-13 ) Note: Only the WAN Ports can use MAC Address Clone function. All the clone MAC addresses must not be the same with each other. 4.4.5 ALG Settings Choose menu “ Advanced Setup ” Æ “ ALG Settings ”, and then you can configure the basic security in the screen as shown in Figure 4-14 .
TD-8840T ADSL2+ Modem Router User Guide 29 layer "control/data" protocols such as FTP, TFTP etc. • FTP ALG - To allow FTP clients and servers to transfer data across NAT, click Enable . • TFTP ALG - To allow TFTP clients and servers to transfer data across NAT, click Enable .
TD-8840T ADSL2+ Modem Router User Guide 30 Figure 4-16 ¾ Start IP Address: Enter a value for the DHCP server to start with when issuing IP addresses. Because the default IP address for the Modem Router is 192.168.1.1, the default Start IP Address is 192.
TD-8840T ADSL2+ Modem Router User Guide 31 ) Note: 1) To use the DHCP server func tion of the Modem Router, you mu st configure all computers on the LAN as "Obtain an IP Address automatically". 2) Y ou have to disable NA T of the WAN connections, or the DHCP Relay may not ta ke effect.
TD-8840T ADSL2+ Modem Router User Guide 32 Figure 4-18 ¾ MAC Address: The MAC address of the PC for which you want to reserve an IP address. ¾ IP Address: The IP address reserved for the PC by the Modem Router. ¾ Status: The status of this entry either Enabled or Disabled .
TD-8840T ADSL2+ Modem Router User Guide 33 Figure 4-20 To add a vendor class: 1. Click the Add New button. Then Figure 4-21 will pop up. 2. Enter parameters for the vendor class. Click the Save button. Figure 4-21 To modify or delete an existing entry: 4.
TD-8840T ADSL2+ Modem Router User Guide 34 4.6.1 Default Gateway Choose “ Route Settings ” Æ “ Default Gatewa y ”, you can see the Default Gateway screen. You can select a WAN Interface from the drop-down list as the system default gateway. Figure 4-22 Click the Add Interface button, you can add WAN Interfaces.
TD-8840T ADSL2+ Modem Router User Guide 35 Figure 4-24 2. Enter the following data: ¾ Destination IP Address: The Destination IP Addr ess is the address of the network or host that you want to assign to a static route.
TD-8840T ADSL2+ Modem Router User Guide 36 4.7 Forwarding There are four submenus under the Forwarding menu: Virtual Servers , Port Triggering , DMZ and UPnP .
TD-8840T ADSL2+ Modem Router User Guide 37 5. Select the protocol used for this application in the Protocol drop -down list, either TCP , UDP , or All .
TD-8840T ADSL2+ Modem Router User Guide 38 Figure 4-28 To add a new rule, follow the steps below. 1. Click the Add New button, the next screen will pop-up as shown in Figure 4-29 . 2. Select a co mmon application from the Common Service Port drop-down list, then the Trigger Port field and the Open Ports field will be automatically filled.
TD-8840T ADSL2+ Modem Router User Guide 39 ¾ Open Protocol : The protocol used for Incoming Port , either TCP , UDP , or ALL (all protocols supported by the Modem Router). ¾ Status : The status of this entry, Enabled means the Port Triggering entry is enabled.
TD-8840T ADSL2+ Modem Router User Guide 40 To assign a computer or server to be a DMZ server: 1. Click the Enable button. 2. Enter the IP address of a local PC that is set to be DMZ host in the DMZ Host IP Address field. 3. Click the Save button. 4.7.
TD-8840T ADSL2+ Modem Router User Guide 41 Figure 4-32 ¾ Enable Parental Control: Check the box if you want this func tion to take effect. This function is disabled by default. ¾ MAC Address of Parental PC: In this field, enter the MAC address of the controlling PC, or you can make use of the Copy To Above button below.
TD-8840T ADSL2+ Modem Router User Guide 42 4.9 Firewall There are five submenus under the Firewall menu: Rule , LAN Host , WAN Host , Schedule and DDoS .
TD-8840T ADSL2+ Modem Router User Guide 43 ¾ Delete Selected: Click the Delete Selected button to delete the selected entries in the table. The methods to add a new rule: 1. Click the Add New button and the next screen will pop up as shown in Figure 4-34 .
TD-8840T ADSL2+ Modem Router User Guide 44 To add a new entry, please follow the steps below. 1. Click the Add New button. 2. In the Mode field, select IP Address or MAC Address. z If you select IP Address, please follow the steps below: 1) In Description field, create a unique description for the host (e.
TD-8840T ADSL2+ Modem Router User Guide 45 If you select MAC Address , the screen shown is Figure 4-38 . Figure 4-38 1) In Description field, create a unique description for the host (e.g. Host_1). 2) In MAC Address field, enter the MAC address. If you select URL Address , the screen shown is Figure 4-39 .
TD-8840T ADSL2+ Modem Router User Guide 46 To add a new schedule, follo w the steps belo w : 1. Click Add New button and the next screen will pop-up as shown in Figure 4-41 . 2. In Description field, create a unique description for the schedule (e.g. Schedule_1).
TD-8840T ADSL2+ Modem Router User Guide 47 Figure 4-42 ¾ DoS protection - Denial of Service protection. Check the Enable or Disable button to enable or disable the DoS protection function.
TD-8840T ADSL2+ Modem Router User Guide 48 4.10 Bandwid th Control Choose menu “ Bandwidth Control ”, and then you can configure the Upstream Bandwidth and Downstream Bandwidth in the next screen. T he values you configur e should be less than 100000Kbps.
TD-8840T ADSL2+ Modem Router User Guide 49 Figure 4-44 3. Click the Save button. 4.11 IP&MAC Binding There are two submenus under the IP &MAC Binding menu: Binding Settings and ARP List . Click any of them, and you will be able to scan or configure the corre s ponding function.
TD-8840T ADSL2+ Modem Router User Guide 50 When you want to add or modify an IP & MAC Binding entry, you can click the Add New button or Edit button, and then you will go to the next page. Th is page is used for adding or modifying an IP & MAC Binding entry (shown in Figure 4-46 ).
TD-8840T ADSL2+ Modem Router User Guide 51 ¾ Load: Load the item to the IP & MAC Binding list. Click the Load Selected button to load selected items to the IP & MAC Binding list. Click the Refresh button to refresh all items. 4.12 Dy namic DNS Choose menu “ Dynamic DNS ”, and you can configure t he Dynamic DNS function.
TD-8840T ADSL2+ Modem Router User Guide 52 Figure 4-49 4.14 Sy stem T ools Choose menu “ System Tools ”, and you can see the s ubmenus under the main menu: System Log , Time Settings , Manage Control , CWMP Settings , SNMP Settings , Backup & Restore , Factory Defaults , Firm ware Upgrade , Reboot and Statistics.
TD-8840T ADSL2+ Modem Router User Guide 53 Figure 4-50 ¾ Log Type: By selecting th e log type, only logs of this type will be shown. ¾ Log Level: By selecting the log level, only logs of this level will be shown. ¾ Refresh: Refresh the page to show the latest log list.
TD-8840T ADSL2+ Modem Router User Guide 54 Figure 4-52 ¾ Time Zone: Select your local time zone from this pull down list. ¾ Date: Enter your local date in MM/DD/YY into the right blanks. ¾ Time: Enter your local time in HH/ MM/SS into th e right blanks.
TD-8840T ADSL2+ Modem Router User Guide 55 Figure 4-53 ¾ Current User Status: This box displays the information about User Type , User Name , Host IP Address and Host MAC Address . ¾ Account Management: Here you can set the account user information about Old Passw ord , New User Name , New Password and Confirm Passw ord .
TD-8840T ADSL2+ Modem Router User Guide 56 Figure 4-54 ¾ CWMP: Select enable the CWMP function. ¾ Inform: Enable or disable the function. If enabl ed, the information will be informed to ACS server periodically. ¾ Inform Interval: Enter the interval time here.
TD-8840T ADSL2+ Modem Router User Guide 57 Figure 4-55 An SNMP Agent is an application running on the Modem Router that performs the operational role of receiving and processing SNMP messages, sending responses to the SNMP manager, and sending traps when an event occurs.
TD-8840T ADSL2+ Modem Router User Guide 58 Figure 4-57 Click the Restore button to reset all configuration settings to their default values. • The default User Name : admin • The default Password : admin • The default Subnet Mask : 255.255.255.0 ) Note: All changed settings will be lost when defaults are restored.
TD-8840T ADSL2+ Modem Router User Guide 59 There is no need to upgrade the firm ware unle ss the new firmware has a new featur e you want to use. However, when experiencing probl ems caused by the Modem Router rather than the configuration, you can try to upgrade the firmware.
TD-8840T ADSL2+ Modem Router User Guide 60 Figure 4-60 ¾ Statistics Status: Enable or Disable. The default value is disabled. To enable it, click the Enable . If it is disabled, the func tion of DoS protection in Securi ty settings will be disabled. ¾ Statistics Interval (5-60): The default value is 10.
TD-8840T ADSL2+ Modem Router User Guide 61 Appendix A: Specifications General Standards and Protocols ANSI T1.413, ITU G.992.1, ITU G. 992.2, ITU G.992.
TD-8840T ADSL2+ Modem Router User Guide 62 Appendix B: T roubleshooting T1. How do I restore my Modem Router’s configuration to its f actory default settings? With the Modem Router powered on, press and ho ld the RESET button on the rear panel for 8 to 10 seconds before releasing it.
TD-8840T ADSL2+ Modem Router User Guide 63 Click Properties Right-click Local Area Connection Double-click Internet Protocol (TCP/IP).
TD-8840T ADSL2+ Modem Router User Guide 64 Select Obtain DNS server address automatically Select Obtain an IP address automatically Click OK Click OK.
TD-8840T ADSL2+ Modem Router User Guide 65 For Windows Vista OS Go to Start > Settings > Control Panel , and then you will see the following page.
TD-8840T ADSL2+ Modem Router User Guide 66 Double-click Internet Protocol Version 4 (TCP/IPv4) Select Obtain an IP address automatically Select Obtain DNS server address automatically Click OK.
TD-8840T ADSL2+ Modem Router User Guide 67 For Windows 7 OS Go to Start > Settings > Control Panel , and then you will see the following page. Click Change adapter settings Click Properties Righ.
TD-8840T ADSL2+ Modem Router User Guide 68 Double-click Internet Protocol Version 4 (TCP/IPv4) Click OK Select Obtain DNS server address automatically Select Obtain an IP address automatically.
TD-8840T ADSL2+ Modem Router User Guide 69 2) Configure your IE browser Open your IE browser, click Tools tab and you will see the following screen. Click Internet Options Click OK Select Never dial a connection Now, try to log on to the Web- based configuration page again afte r the above settings have been configured.
TD-8840T ADSL2+ Modem Router User Guide 70 3) Consult your ISP and make sure all the VPI/VCI, Connection Type, account username and password are correct.
TD-8840T ADSL2+ Modem Router User Guide 71 Appendix C: T echnical Support Technical Support For more troubleshooting help, go to: www.tp-link.com/s upport/faq.asp T o download the latest Firmware, Driver , Utility and User Guide, go to: www.tp-link.
An important point after buying a device TP-Link TD-8840T (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought TP-Link TD-8840T yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data TP-Link TD-8840T - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, TP-Link TD-8840T you will learn all the available features of the product, as well as information on its operation. The information that you get TP-Link TD-8840T will certainly help you make a decision on the purchase.
If you already are a holder of TP-Link TD-8840T, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime TP-Link TD-8840T.
However, one of the most important roles played by the user manual is to help in solving problems with TP-Link TD-8840T. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device TP-Link TD-8840T along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
