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TD-8841T 
4-port ADSL2/2+ Ethernet/USB Router 

 

 

 

 

 

 

 

 

 

Rev: 1.0.1 

1910010059 

Summary of Contents for TD-8841T

Page 1: ...TD 8841T 4 port ADSL2 2 Ethernet USB Router Rev 1 0 1 1910010059 ...

Page 2: ...s are trademarks or registered trademarks of their respective holders No part of the specifications 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 TP LINK TECHNOLOGIES CO LTD Copyright 2008 TP LINK TECHNOLOGIES CO LTD All rights reserved http www tp link com ...

Page 3: ...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 This device complies with part 15 of the FCC Rules Operation ...

Page 4: ...5 cable Two RJ11 cables One USB cable One ADSL splitter One Resource CD including z This User Guide z USB Driver z Other Helpful Information Note Make sure that the package contains the above items If any of the listed items are damaged or missing please contact with your distributor Conventions The Router or TD 8841 or device mentioned in this User guide stands for TD 8841 External ADSL2 Router w...

Page 5: ...e 6 3 1 Configure PC 6 3 2 USB Configuration 9 3 3 Login 11 Chapter 4 Software Configuration 16 4 1 Status 16 4 2 Quick Start 17 4 3 Interface Setup 17 4 3 1 Internet 18 4 3 2 LAN 22 4 4 Advanced Setup 25 4 4 1 Firewall 25 4 4 2 Routing 25 4 4 3 NAT 26 4 4 4 QoS 30 4 4 5 VLAN 32 4 4 6 ADSL 34 4 5 Access Management 35 4 5 1 ACL 35 4 5 2 Filter 36 4 5 3 SNMP 44 4 5 4 UPnP 44 4 5 5 DDNS 45 4 5 6 CWMP...

Page 6: ...4 6 3 Firmware 49 4 6 4 System Restart 51 4 6 5 Diagnostic 51 4 7 Help 51 Appendix A Specification 53 ...

Page 7: ...ork and Router management is done through the Web based Utility which can be accessed through local Ethernet using any web browser ADSL The TD 8841T supports full rate ADSL2 connectivity conforming to the ITU and ANSI specifications In addition to the basic DMT physical layer functions the ADSL2 PHY supports dual latency ADSL2 framing fast and interleaved and the I 432 ATM Physical Layer 1 2 Main ...

Page 8: ...irtual Server DMZ host and IP Address Mapping Supports Dynamic DNS UPnP and Static Routing Supports system log and flow Statistics Supports firmware upgrade and Web management 1 3 Conventions The Router or device mentioned in this User guide stands for TD 8841T without any explanations Parameters provided in the pictures are just references for setting up the product which may differ from the actu...

Page 9: ...t Act Off No data transmitting or receiving on WAN port On Connection to telecom network is OK Off Connection on USB port is abnormal USB Flash Data is transmitting or receiving On 1 4 LAN port normal Off Connection on 1 4 LAN port abnormal 1 4 LAN Flash Data transmitting or receiving on 1 4 LAN port 2 2 The Back Panel Figure 2 2 On OFF The switch for the power POWER The Power plug is where you wi...

Page 10: ...one end of the twisted pair ADSL cable into the ADSL LINE port on the rear panel of TD 8841T and insert the other end into the wall socket Method two You can use a separate splitter External splitter can divide the data and voice and then you can access the Internet and make calls at the same time The external splitter has three ports LINE Connect to the wall jack PHONE Connect to the phone sets M...

Page 11: ...TD 8841T 4 port ADSL2 2 Ethernet USB Router User Guide 5 Figure 2 3 ...

Page 12: ... or connect your adapter to a Hub Switch which has connected to the Router you need to configure your PC s IP address Follow the steps below to configure it Step 1 Click the Start menu on your desktop right click My Network Places and then select Properties shown in Figure 3 1 Figure 3 1 Step 2 Right click Local Area Connection LAN and then select Properties ...

Page 13: ...TD 8841T 4 port ADSL2 2 Ethernet USB Router User Guide 7 Figure 3 2 Step 3 Select General tab highlight Internet Protocol TCP IP and then click the Properties button Figure 3 3 ...

Page 14: ...cally and Obtain DNS server address automatically in the screen above Now you can run the Ping command in the command prompt to verify the network connection Please click the Start menu on your desktop select run tab type cmd in the field and then type ping 192 168 1 1 on the next screen and then press Enter If the result displayed is similar to the screen below the connection between your PC and ...

Page 15: ... correct If the Router s IP address is 192 168 1 1 your PC s IP address must be within the range of 192 168 1 2 192 168 1 254 3 2 USB Configuration If you use the USB interface you must install the USB s driver to the computer first You can obtain the drivers from the provided CD or download from our website http www tp link com USB Drive installation procedures Step 1 Please connect your PC to th...

Page 16: ...ort ADSL2 2 Ethernet USB Router User Guide 10 Figure 3 7 Step 3 You will see Figure 3 8 as follow please wait a moment Figure 3 8 Step 4 After that you will see Figure 3 9 Click Finish to complete the installation ...

Page 17: ... cable of the Router to a computer please just unplug the USB cable and try again 3 3 Login Once your host PC is properly configured please proceed as follows to use the Web based Utility Start your web browser and type the private IP address of the Router in the URL field 192 168 1 1 After that you will see the screen shown below enter the default User Name admin and the default Password admin an...

Page 18: ...lect the Quick Start tab then click RUN WIZARD and you will see the next screen Click the NEXT button Figure 3 11 Step 2 Change the login password in the next screen and then click the NEXT button Figure 3 12 Step 3 Configure the time for the Router and then click the NEXT button ...

Page 19: ...ep 4 Select the connection type to connect to the ISP We select PPPoE PPPoA mode for example here and then click the NEXT button Figure 3 14 Step 5 Configure the following options provided by your ISP Username Password VPI VCI and Connection Type Then click Next Figure 3 15 ...

Page 20: ...the same VPI VCI as the default PVCs in factory configuration you will have an Error Message ERROR FAIL TO UPDATE DUE TO Duplicate to a VPI VCI In this condition please choose Interface Setup Internet and configure the PVC manually To get detailed information please refer to 4 3 1 ...

Page 21: ...TD 8841T 4 port ADSL2 2 Ethernet USB Router User Guide 15 Step 6 Click NEXT to finish the Quick Start Figure 3 16 ...

Page 22: ... on the top of the Web based Utility submenus will be available after you click one of the main menus On the center of the Web based Utility there are the detailed configurations or status information To apply any settings you have altered on the page please click the SAVE button 4 1 Status Choose Status you can see the next submenus Device Info System Log and Statistics Click any of them and you ...

Page 23: ...tics in Figure 4 2 you will be able to view the system log and traffic statistics about the Router 4 2 Quick Start Please refer to 3 3 Login 4 3 Interface Setup Choose Interface Setup you can see the next submenus Internet and LAN Figure 4 3 Click any of them and you will be able to configure the corresponding function ...

Page 24: ... in Figure 4 4 Figure 4 4 ATM VC ATM settings are used to connect to your ISP Your ISP provides VPI Virtual Path Identifier VCI Virtual Channel Identifier settings to you In this Device you can totally setup 8 VCs on different encapsulations if you apply 8 different virtual circuits from your ISP You need to activate the VC to take effect For PVCs management you can use ATM QoS to ...

Page 25: ...ed by the parameters specified below including PCR Peak Cell Rate SCR Sustained Cell Rate and MBS Maximum Burst Size please configure them according your needs Encapsulation There are four connection types Dynamic IP Address Static IP Address PPPoA PPPoE and Bridge Mode Please choose the designed type that you want to use After that you should follow the configuration below to proceed 1 Dynamic IP...

Page 26: ...tion IGMP Internet Group Multicast Protocol is a session layer protocol used to establish membership in a multicast group The ADSL ATU R supports both IGMP version 1 IGMP v1 and IGMP v2 Select Disabled to disable it 2 Static IP Address Select this option if your ISP provides static IP information to you You should set static IP address IP subnet mask and gateway address in the screen below shown i...

Page 27: ...and or Connect Manually Connect on demand is dependent on the traffic If there is no traffic or Idle for a pre specified period of time the connection will tear down automatically And once there is traffic send or receive the connection will be automatically on Static Dynamic IP Address For PPPoE PPPoA connection you need to specify the public IP address for this ADSL Router The IP address can be ...

Page 28: ... of the same physical LAN Figure 4 8 Note After you finish the Internet configuration please click SAVE to make the settings take effect 4 3 2 LAN Choose Interface Setup LAN menu and you will see the LAN screen shown in Figure 4 9 Please configure the parameters for LAN ports according to the descriptions below Figure 4 9 Router Local IP These are the IP settings of the LAN interface for the devic...

Page 29: ...ot accept RIP packet Multicast Select IGMP version or disable the function IGMP Internet Group Multicast Protocol is a session layer protocol used to establish membership in a multicast group The ADSL ATU R supports both IGMP version 1 IGMP v1 and IGMP v2 Select Disabled to disable it IGMP Snoop Enable the IGMP Snoop function if you need DHCP Server Select Enabled then you will see the screen belo...

Page 30: ...m one of the PPPoA PPPoE or MER DHCP enabled PVC s during the connection establishment If Use User Discovered DNS Server Only is selected in DNS Relay it is necessary for you to enter the primary and optional secondary DNS server IP addresses After type in the address click SAVE button to save it and invoke it DHCP Relay Select Relay then you will see the next screen shown in Figure 4 11 the Route...

Page 31: ...menu and you will see the next screen shown in Figure 4 13 Figure 4 13 Firewall Select this option can automatically detect and block Denial of Service DoS attacks such as Ping of Death SYN Flood Port Scan and Land Attack SPI If you enable SPI all traffics initiated from WAN would be blocked including DMZ Virtual Server and ACL WAN side 4 4 2 Routing Choose Advanced Setup Routing menu and you will...

Page 32: ...ess of one of the remote nodes Metric Metric represents the cost of transmission for routing purposes IP Routing uses hop count as the measurement of cost with a minimum of 1 for directly connected networks Enter a number that approximates the cost for this link The number need not to be precise but it must between 1 and 15 In practice 2 or 3 is usually a good number Announced in RIP This paramete...

Page 33: ... and Virtual servers Furthermore for VCs with multiple IPs they can define the Address Mapping rules for VCs with single IP since they have only one IP there is no need to individually define the Address Mapping rule 4 4 3 1 DMZ Choose Advanced Setup NAT DMZ in Figure 4 16 you can configure the DMZ host in the next screen A DMZ demilitarized zone is a host between a private local network and the o...

Page 34: ... Virtual Server Listing This displays the information about the Virtual Servers you establish To add a virtual server entry Step 1 Select the Virtual Circuit and select Virtual Server Note For VCs with single IP select Single For VCs with multiple IPs select Multiple for the option Step 2 Select the Rule index for the rule as shown in Figure 4 18 Step 3 Select the application you want from drop do...

Page 35: ...ules in maximum Rule Type There are four types one to one Many to One Many to Many Overload and Many to Many No overload Local Start End IP Enter the local IP Address you plan to map to Local Start IP is the starting local IP address and Local End IP is the ending local IP address If the rule is for all local IPs then the Start IP is 0 0 0 0 and the End IP is 255 255 255 255 Public Start End IP En...

Page 36: ...the entries as shown in Figure 4 20 Enter the index of assigned entry click the DELETE button to delete the entry Click the Back button to return to the previous screen Click the CANCEL button to cancel the configuration which is made just now 4 4 4 QoS Choose Advanced Setup QoS you can configure the QoS in the next screen QoS helps to prioritize data as it enters your router By attaching special ...

Page 37: ...the rule you want to configure Active Activate the rule The rule can take effect only when it is activated Application Select the application that the rule aimed at Physical Ports Select the port whose traffic flow are controlled by the rule Destination MAC IP Mask Port Range Enter the IP information about the Destination host for the rule Source MAC IP Mask Port Range Enter the IP information abo...

Page 38: ...Field Select the type for the action IP Precedence Remarking Select the number to remark the priority for IP precedence Type of Service Remarking Select the type to remark the service DSCP Remarking Enter the number to remark the DSCP priority 802 1p Remarking Select the type to remark the 802 1p priority Queue Select the priority type for the action 4 4 5 VLAN Choose Advanced Setup VLAN you can a...

Page 39: ...gn the PVID for each interface in the next screen shown in Figure 4 23 Figure 4 23 PVID Each physical port has a default VID called PVID Port VID PVID is assigned to untagged frames or priority tagged frames frames with null 0 VID received on this port 2 Define VLAN Group Click Define VLAN Group in Figure 4 22 you can define VLAN groups in the next screen shown in Figure 4 24 ...

Page 40: ...ember of VLAN and if you leave the Tagged blank the tag in frames will be deleted when transmitted from the port USB Select the USB port as a member of VLAN and if you leave the Tagged blank the tag in frames will be deleted when transmitted from the port VLAN Group Summary This displays the information about the VLAN Groups 4 4 6 ADSL Choose Advanced Setup ADSL you can select the ADSL Type and AD...

Page 41: ...L connection uses 4 5 Access Management Choose Access Management you can see the next submenus Figure 4 26 Click any of them and you will be able to configure the corresponding function 4 5 1 ACL Choose Access Management ACL you can see the next screen shown in Figure 4 27 You can specify the client to access the ADSL Router once setting his IP as a Secure IP Address through selected applications ...

Page 42: ...le and then you can access the Router through it Interface Select the interface for access LAN WAN or Both Access Control of Listing This displays the information about the ACL Rules 4 5 2 Filter Choose Access Management Filter you can see the Filter screen the default is IP MAC Filter screen shown in The filtering feature includes IP MAC Filter Application Filter and URL Filter The feature makes ...

Page 43: ... six IP MAC Filter Rule Indexes Interface Select the interface for the entry Note If select PVC0 PVC7 as an interface the filter will match the IP traffic of WAN port with specified IPs Source IP Address and Destination IP Address If select LAN as an interface the filter will match the IP traffic of LAN port with specified IPs Direction Select the direction for this IP Filter rule There are three ...

Page 44: ...r the Port Number for the rule You can enter 0 it means that all ports are controlled by the rule Protocol Select the protocol TCP UDP or ICMP for the filter rule Rule Unmatched If the current rule can not match and you select Forward the router will skip the rule and transmit directly If you select Next the router will find the next filter rule show in Filter list to match IP MAC Filter Listing T...

Page 45: ... mail received by the IP address 192 168 1 7 on your local network Make the PC with IP address 192 168 1 8 unable to visit the website of IP address 202 96 134 12 Note After you complete the IP filter rules for the example the Filter list will show as follows You can enter the IP MAC Filter Set Index to view the information about the rule Other operations for the entries as shown in Figure 4 28 Se...

Page 46: ...current rule can not match and you select Forward the router will skip the rule and transmit directly If you select Next the router will find the next filter rule show in Filter list to match IP MAC Filter Listing This displays the information about the MAC Filter rules To add a MAC Address filtering entry For example If you want to block the PCs with MAC addresses 00 0A EB 00 07 BE and 00 0A EB 0...

Page 47: ...entry Step 5 Go to Step 2 to configure the next rule Block the PC with MAC address 00 0A EB 00 07 5F to access the Internet Note After you complete the MAC filter rules for the example the Filter list will show as follows You can enter the IP MAC Filter Set Index to view the information about the rule Other operations for the entries as shown in Figure 4 29 Select the IP MAC Filter Set Index and I...

Page 48: ...cation Filter Activate or deactivate the function ICQ MSN YMSG Real Audio Video Select Allow or Deny for these applications If you select Allow the Router will accept the application if you select Deny the Router will forbid the application 4 5 2 4 URL Select URL as the Filter type shown in Figure 4 31 then you can configure the filter rules based on URL ...

Page 49: ...L filter entry For example If you want to forbid the user to access the website www yahoo com Presume its index is 1 Step 1 Select the URL Filter as the Filer Type Selection show in Figure 4 31 Step 2 Select the Index for the rule and then enter the website in the URL field Step 3 Finally Select Yes to active the rule and then click the SAVE to save the entry Other operations for the entries as sh...

Page 50: ...lay is a distributed open networking standard that uses TCP IP for simple peer to peer network connectivity between devices An UPnP device can dynamically join a network obtain an IP address convey its capabilities and learn about other devices on the network In turn a device can leave a network smoothly and automatically when it is no longer in use UPnP broadcasts are only allowed on the LAN Figu...

Page 51: ...card or not Figure 4 34 Dynamic DNS Activate the DDNS function or not Service Provider This field displays the service provider of DDNS My Host Name Enter your host name here E mail Address Enter your E mail address here Username Password Type the User Name and Password for your DDNS account Wildcard support Select the option to use Wildcard function 4 5 6 CWMP Choose Access Management CWMP you ca...

Page 52: ...er User Name Password Enter the User Name and Password that provided the ACS server to login the router Periodic Inform Activate or deactivate the function If Activated the information will be informed to ACS server periodically Interval Enter the interval time here 4 6 Maintenance Choose Maintenance you can see the next submenus Figure 4 36 Click any of them and you will be able to configure the ...

Page 53: ...hown in Figure 4 37 The system time is the time used by the device for scheduling services There are three methods to configure the time You can manually set the time specify the PC s Clock as the device system time or connect to a NTP Network Time Protocol server If you manually set the time you may also set Daylight Saving dates and the system time will automatically adjust on those dates If a N...

Page 54: ...tem time automatically from the NTP Server You can also configure the NTP Server address manually and then the Router will get the time from the specific Server firstly 2 PC s Clock Select PC s Clock as the Synchronize time you don t need to set any items Figure 4 39 3 Manually Select Manually as the Synchronize time you need to set the date and time corresponding to the current time ...

Page 55: ...ocal hard drive and locate the firmware or romfile to be used for upgrade Figure 4 41 To upgrade the router s firmware follow these instructions below Step 1 Download a more recent firmware upgrade file from the TP LINK website www tp link com Step 2 Type the path and file name of the update file into the New Firmware Location field Or click the Browse button to locate the update file Step 3 Click...

Page 56: ... upgrade its firmware 3 Do not turn off the router or press the Reset button while the firmware is being upgraded 4 The router will reboot after the upgrading has been finished To back up the Router s current settings Step 1 Click the ROMFILE SAVE button shown in Figure 4 41 click Save button in the next screen shown in Figure 4 42 to proceed Figure 4 42 Step 2 Save the file as the appointed file ...

Page 57: ... device with current settings or restore to factory default settings in the screen shown in Figure 4 44 Figure 4 44 4 6 5 Diagnostic Choose Maintenance Diagnostic you can view the test results for the connectivity of the physical layer and protocol layer for both LAN and WAN sides in the screen shown in Figure 4 45 Figure 4 45 4 7 Help Choose Help you can view the help information for configuratio...

Page 58: ...TD 8841T 4 port ADSL2 2 Ethernet USB Router User Guide 52 Figure 4 46 Note Click the tab and you will be able to get the corresponding information ...

Page 59: ...J45 port Auto MDI MDIX 1 RJ11 port 1 USB 1 1 port LEDs USB 1 4 LAN ADSL Power ACT Network Medium 10Base T UTP category 3 4 5 cable 100Base TX UTP category 5 USB USB cable Max line length 6 5Km Data Rates Downstream Up to 24Mbps Upstream Up to 3 5Mbps With Annex M enabled System Requirement Internet Explorer 5 0 or later Netscape Navigator 6 0 or later Physical and Environment Working Temperature 0...

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