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TD851W

150Mbps Wireless N ADSL2+ Modem Router User Guide

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MODEM: Connect to the ADSL port of TD851W

Plug one end of the twisted-pair ADSL cable into the ADSL LINE port on the rear panel of

TD851W. Connect the other end to the MODEM port of the external splitter.

Step 2:

Connect the Ethernet cable. Attach one end of a network cable to your computer’s
Ethernet port or a regular hub/switch port, and the other end to the LAN port on the
TD851W.

Step 3:

Power on the computers and LAN devices.

Step 4:

Attach the power adapter. Connect the power adapter to the power connector on the rear
of the device and plug in the adapter to a wall outlet or power extension, and then power
on the device. The electrical outlet shall be installed near the device and shall be easily
accessible.

Figure 2-3

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Summary of Contents for TD851W

Page 1: ...TD851W 150Mbps Wireless N ADSL2 Modem Router Rev 1 0 0 1910010472 ...

Page 2: ...rantee 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 ...

Page 3: ...ional restrictions This device is intended for home and office use in all EU countries and other countries following the EU directive 1999 5 EC without any limitation except for the countries mentioned below Country Restriction Reason remark Bulgaria None General authorization required for outdoor use and public service France Outdoor use limited to 10 mW e i r p within the band 2454 2483 5 MHz Mi...

Page 4: ...r normative documents ETSI EN 300 328 V1 7 1 2006 ETSI EN 301 489 1 V1 8 1 2008 ETSI EN 301 489 17 V2 1 1 2009 EN60950 1 2006 Recommendation 1999 519 EC EN62311 2008 Directives 2004 108 EC The above product is in conformity with the following standards or other normative documents EN 55022 2006 A1 2007 EN 55024 1998 A1 2001 A2 2003 EN 61000 3 2 2006 EN 61000 3 3 1995 A1 2001 A2 2005 Directives 200...

Page 5: ...6 2 4 Connecting the Modem Router 6 Chapter 3 Quick Installation Guide 8 3 1 Configure PC 8 3 2 Login 11 Chapter 4 Software Configuration 15 4 1 Status 15 4 1 1 Device Info 15 4 1 2 Statistics 17 4 1 3 Wizard 18 4 2 Setup 18 4 2 1 WAN 18 4 2 2 LAN 23 4 2 3 WLAN 28 4 3 Advanced 42 4 3 1 Route 43 4 3 2 NAT 44 4 3 3 QoS 50 4 3 4 CWMP 55 4 3 5 Port mapping 57 4 3 6 Others 59 4 4 Service 59 4 4 1 IGMP ...

Page 6: ... 64 4 5 2 IP Port Filter 66 4 5 3 URL Filter 67 4 5 4 ACL 68 4 6 Maintenance 71 4 6 1 Update 71 4 6 2 Password 74 4 6 3 System Restart 74 4 6 4 Time 75 4 6 5 Log 76 4 6 6 Diagnostic 77 Appendix A Specifications 82 Appendix B Troubleshooting 83 Appendix C Technical Support 92 ...

Page 7: ...eless N ADSL2 Modem Router One Power Adapter for TD851W 150Mbps Wireless N ADSL2 Modem Router Quick Installation Guide One RJ45 cable Two RJ11 cables One ADSL splitter One Resource CD which includes this User Guide Note Make sure that the package contains the above items If any of the listed items are damaged or missing please contact your distributor ...

Page 8: ...p messages are provided for the configuration Network and Router management is done through the Web based Utility which can be accessed through local Ethernet using any web browser ADSL The TD851W 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 interl...

Page 9: ...ping Protection against Denial of Service attack IP Packet filtering MAC filtering URL filtering IP QoS Dynamic DNS UPnP support System log support can record the state of the router Remote management SNMP v1 v2 Trap Firmware upgrade through FTP TFTP and HTTP Configuration backup restore Diagnostic tools 1 3 Conventions The Router or device mentioned in this User Guide stands for TD851W without an...

Page 10: ...tion is in progress ADSL Off ADSL synchronization fails Please refer to Note 1 for troubleshooting On The network is available with a successful Internet connection Flash There is data being transmitted or received via the Internet Internet Off There is no successful Internet connection or the modem router is operating in Bridge mode Please refer to Note 2 for troubleshooting On Wireless is enable...

Page 11: ...e information Note 1 If the ADSL LED is off please check your Internet connection first Refer to 2 4 Connecting the Modem Router for more information about how to make Internet connection correctly If you have already made a right connection please contact your ISP to make sure if your Internet service is available now 2 If the Internet LED is off please check your ADSL LED first If your ADSL LED ...

Page 12: ...e heat Place the Router in a location where it can be connected to the various devices as well as to a power source Make sure the cables and power cord are safely placed out of the way so they do not create a tripping hazard The Router can be placed on a shelf or desktop Keep away from the strong electromagnetic radiation and the device of electromagnetic sensitive 2 4 Connecting the Modem Router ...

Page 13: ...ble Attach one end of a network cable to your computer s Ethernet port or a regular hub switch port and the other end to the LAN port on the TD851W Step 3 Power on the computers and LAN devices Step 4 Attach the power adapter Connect the power adapter to the power connector on the rear of the device and plug in the adapter to a wall outlet or power extension and then power on the device The electr...

Page 14: ...r 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 8 ...

Page 15: ...TD851W 150Mbps Wireless N ADSL2 Modem Router User Guide Figure 3 2 Step 3 Select General tab highlight Internet Protocol TCP IP and then click the Properties button 9 ...

Page 16: ...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 or command in the field and press Enter 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 be...

Page 17: ...apter should be lit 2 Is the TCP IP configuration for your PC 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 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 tha...

Page 18: ...TD851W 150Mbps Wireless N ADSL2 Modem Router User Guide Figure 3 7 Step 1 Select the Wizard tab and you will see the next screen Figure 3 8 12 ...

Page 19: ...ded by your ISP After that click the next button to continue Figure 3 9 Step 3 Choose to enable your wireless network or not If it s enabled you need to create a name for your wireless network It s recommended that the name be unique and easy to remember You can also keep default without the device being affected Select an Encryption and Authentication Mode for the security of your wireless networ...

Page 20: ...TD851W 150Mbps Wireless N ADSL2 Modem Router User Guide Figure 3 10 Step 4 Click the Apply Changes button to finish the wizard Figure 3 11 14 ...

Page 21: ...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 and Statistics Click any of them and you will be able to configure the corresponding function Click any...

Page 22: ...50Mbps Wireless N ADSL2 Modem Router User Guide Figure 4 1 Click the Refresh button to refresh immediately 4 1 1 2 ADSL Choose Status Device Info ADSL menu and you will be able to view the ADSL configuration 16 ...

Page 23: ...em Router User Guide Figure 4 2 Click the Retrain button to retrain the information again Click the Refresh button to refresh immediately 4 1 2 Statistics Choose Status Statistics menu and you will be able to view the network traffic 17 ...

Page 24: ...e Refresh button to refresh immediately 4 1 3 Wizard Please refer to 3 2 Login 4 2 Setup Choose Setup you can see the next submenus WAN LAN and WLAN Click any of them and you will be able to configure the corresponding function 4 2 1 WAN 4 2 1 1 WAN Back to LED Explanation 18 ...

Page 25: ...P provides VPI Virtual Path Identifier VCI Virtual Channel Identifier settings to you In this Device there is one VC configured by default 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 Click this icon to enter the VC modification page Besides some advanced settings can be configured there C...

Page 26: ...twork connection Continuous means the Internet connection will always keep on Connect on demand is dependent on the traffic If it s idle there is no traffic 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 Manually means you have to manually connect or disconnect your Internet by clickin...

Page 27: ...red VC and then click this button thus your existed VC will be deleted Undo Click this button to abandon your operation Refresh Click this button to refresh the ATM VC table Note After configuration you need to click the Save button appeared on the left panel so that your configuration can still take effect after the Router reboots 4 2 1 2 ATM Choose Setup WAN ATM menu you can configure the parame...

Page 28: ...Please configure them according to your needs Click Apply Changes to save your configuration Note After configuration you need to click the Save button appeared on the left panel so that your configuration can still take effect after the Router reboots 4 2 1 3 ADSL Choose Setup WAN ADSL menu you can configure some advanced parameters for your ADSL Router in the next screen shown in Figure 4 4 Figu...

Page 29: ...r s local IP Address You can access to the Web based Utility via the IP Address the default value is 192 168 1 1 You can change the IP address if needed The LAN IP address is private to your internal network and cannot be seen on the Internet Subnet Mask The subnet mask of the ADSL Router s LAN interface The default value is 255 255 255 0 Secondary IP If you enable the Secondary IP you should conf...

Page 30: ...add a new MAC address enter the MAC address and then click Add button Current Allowed MAC Address Table Displays the current allowed MAC address Click the Delete button and then the corresponding MAC address will be deleted After configuration click Apply Changes button to save your changes Note After configuration you need to click the Save button appeared on the left panel so that your configura...

Page 31: ...and DHCP Server 1 None In this mode the Modem Router will do nothing when the host requests an IP address by DHCP protocol The screen will be shown as in Figure 4 9 Figure 4 9 2 DHCP Relay In this mode the Router will work as a DHCP Relay A DHCP relay is a device that forwards DHCP data between computers that request IP addresses and the DHCP server that assigns the addresses Each of the device s ...

Page 32: ...e Router will work as a DHCP Server it becomes the default gateway for DHCP client connected to it That device on your local network must be set as a DHCP client to obtain the IP address automatically By default the DHCP Server is enabled Figure 4 11 IP Pool Range Specify the start and end IP address for the DHCP server s IP assignment The default start and end IP Address are 192 168 1 100 and 192...

Page 33: ...ndo Click this button to cancel your configuration Set VendorClass IP Range Click this button to and then you will enter the screen as shown in Figure 4 12 This page allows you to configure the IP address range depending on device s option60 Figure 4 12 Device name Give a name for the class of your device such as PC Phone TV etc Start address Specify the start address End address Specify the end a...

Page 34: ...mmended to be assigned to the client that requires permanent IP settings Figure 4 13 IP Address Enter the IP address desired to be assign to the client Mac Address Enter the MAC address of the client Add Click this button to add a new static IP entry Delete Selected Click this button to delete the selected entry in the DHCP Static IP Table Undo Click this button to delete your entering Note After ...

Page 35: ... wireless network The SSID must be identical for all devices in the wireless network It is case sensitive and must not exceed 32 characters use any of the characters on the keyboard Make sure this setting is the same for all stations in your wireless network Type the desired SSID in the space provided Channel Width Select the width you want to use from the drop down List There are three options 20...

Page 36: ...Choose Setup WLAN Security menu and you will see the Wireless Security Setup screen shown in Figure 4 15 Here you can configure the security settings of your wireless network There are six encryptions supported by the Router WEP WPA TKIP WPA AES WPA2 AES WPA2 TKIP and WPA2 Mixed Figure 4 15 Encryption There are six encryptions supported by the Router WEP WPA TKIP WPA AES WPA2 AES WPA2 TKIP and WPA...

Page 37: ... Step 1 Select WEP from the Encryption drop down list The following available options will change to offer the appropriate settings Figure 4 16 Step 2 Click Set WEP Key button to enter the Wireless WEP Key Setup screen as shown in Figure 4 17 Figure 4 17 31 ...

Page 38: ... appeared on the left panel so that your configuration can still take effect after the Router reboots 2 WPA WPA2 WPA Wi Fi Protected Access and WPA2 WPA version 2 are based on Radius Server There are two WPA encryption rules AES and TKIP There are also two WPA Authentication Mode Enterprise RADUIS or Personal Pre Shared Key To configure WEP settings select follow the steps below Step 1 Select WPA ...

Page 39: ...uired For Pre Shared Key Format Passphrase and Hex 64 characters are provided You then need to create a key for your Router in Pre Shared Key filed The least length of the key will change according to the format selected in Pre Shared Key Format field Step 3 Click Apply Changes to save your configuration Note After configuration you need to click the Save button appeared on the left panel so that ...

Page 40: ...able to connect to you access point Click Apply Changes to save your configuration MAC Address Enter the MAC address of the client you want to allow or deny Current Access Control List Shows the MAC address table you configured you can delete it as you need Note After configuration you need to click the Save button appeared on the left panel so that your configuration can still take effect after t...

Page 41: ...ticular receiving station and negotiates the sending of a data frame After receiving an RTS the wireless station responds with a Clear to Send CTS frame to acknowledge the right to begin transmission In most cases keep its default value of 2347 Beacon Interval Enter a value between 20 1000 milliseconds The Beacon Interval value indicates the frequency interval of the beacon A beacon is a packet br...

Page 42: ...Point 2 After configuration you need to click the Save button appeared on the left panel so that your configuration can still take effect after the Router reboots 4 2 3 5 WPS Back to LED Explanation Choose Setup WLAN WPS menu and you will see the Quick Secure Setup screen shown in Figure 4 21 Wi Fi Protected Setup WPS is a simple way to establish the connection between the wireless client and acce...

Page 43: ...Push Button Configuration PBC method you can add it to the network by PBC with the following two methods Method One Step 1 Press the WPS button on the front panel of the Router or click Start PBC button in Figure 4 21 Step 2 Press and hold the WPS button of the adapter directly for 2 or 3 seconds Step 3 Wait for a while until the next screen appears Click Finish to complete the WPS configuration 3...

Page 44: ...less Adapter Method Two Step 1 Press the WPS button on the front panel of the Router or click Start PBC button in Figure 4 21 Step 2 For the configuration of the wireless adapter please choose Push the button on my access point in the configuration utility of the WPS as below and click Next 38 ...

Page 45: ...s Adapter Step 3 Wait for a while until the next screen appears Click Finish to complete the WPS configuration The WPS Configuration Screen of Wireless Adapter 2 PIN code If the wireless adapter supports WPS and the PIN method you can add it to the network by PIN with the following two methods 39 ...

Page 46: ...ase choose Enter a PIN into my access point or a registrar in the configuration utility of the WPS and get the PIN code on the screen as below then click Next The WPS Configuration Screen of Wireless Adapter Step 2 For the Router enter the PIN code of the wireless adapter in the Client PIN Number field as shown below Then click Start PIN Figure 4 22 40 ...

Page 47: ...een of Wireless Adapter Note 1 The default PIN code of the Router can be found in its label or the WPS configuration screen as shown in Figure 4 22 2 After saving your configuration you need to click the Save button on the left panel to make your configuration take effect 4 2 3 6 WDS Choose Setup WLAN WDS menu and you will see the WDS settings screen shown in Figure 4 23 WDS short for Wireless Dis...

Page 48: ...Access Point to communicate with in MAC Address field Step 2 Give a description for that Access Point in Comment field Step 3 Click Apply Changes button to save the MAC address to Current WDS AP List Note If changes are made after clicking Apply Changes button a Save button will appear on the left panel You need to click the Save button to make your changes take effect 4 3 Advanced Choose Advanced...

Page 49: ... Mask Enter the subnet mask of the destination Next Hop The IP address of the next hop through which traffic will forward the destination Interface Select the interface to which a static route is to be applied Click the Add Route button to add the new route in the Static Route Table The Static Route Table shows the current static route entries Note After configuration you need to click the Save bu...

Page 50: ...ck the Add button to add a RIP configuration to the Rip Config List Click the Delete button to delete it The RIP Config List shows the current RIP setting of the device Note After adding a new entry a Save button will appear on the left panel You need to click the Save button to make your changes take effect 4 3 2 NAT 4 3 2 1 DMZ Choose Advanced NAT DMZ you can configure the DMZ host in the screen...

Page 51: ...ur configuration can still take effect after the Router reboots 4 3 2 2 Virtual Server Choose Advanced NAT Virtual Server and then you can configure the Virtual Server in the screen as shown in Figure 4 27 The Virtual Server is the server or server s behind NAT on the LAN It allows a single host on your LAN to provide the specified service to the Internet for example Web server or FTP server which...

Page 52: ... and IP address Select a desired one and then options available will change to offer the configuration WAN Interface The interface on which the virtual server used on WAN side WAN IP Address The IP address which the virtual server used on WAN side You can access this IP and WAN port from WAN side to obtain the service WAN Port The open port on WAN side It can be either a single port or a port rang...

Page 53: ...Address field Step 4 Click Apply Changes button to save your configuration And the Virtual Server will be added to the Current Virtual Server Forwarding Table Step 5 Click Save button on the left panel to make sure your configuration can still take effect after the Router reboots 4 3 2 3 ALG Choose Advanced NAT ALG and then you can configure the ALG settings in the screen as shown in Figure 4 28 T...

Page 54: ... these applications that can work with an NAT Router which can be helpful in securing and restricting your local network Figure 4 29 Nat Port rigger Enable or disable the port trigger function on the device After selecting click the Apply Changes button to save your configuration Application Type You can select the service from the Usual Application Name and then the following parameters Match Por...

Page 55: ...he left panel so that your configuration can still take effect after the Router reboots 4 3 2 5 IP Address Mapping Choose Advanced NAT IP Address Mapping and then you can configure the mapping rules in the screen as shown in Figure 4 30 NAT IP mapping allows you to configure one IP pool for specified source IP address from LAN so a packet whose source IP is in range of the specified address will s...

Page 56: ...P address and Global End IP is the ending public IP address If you have a dynamic IP enter 0 0 0 0 as the Global Start IP Current NAT IP MAPPING Table This displays the information about the Mapping address Note After configuration you need to click the Save button appeared on the left panel so that your configuration can still take effect after the Router reboots 4 3 3 QoS Choose Advanced QoS you...

Page 57: ...ll be send by its priority the higher priority the traffic is the higher priority the traffic will be send out z WFQ 4 3 2 1 Traffic with different priority will be send in proportion of its priority the four priority traffic will be send out in proportion to 4 3 2 1 Apply Click this button to save your changes Note After configuration you need to click the Save button appeared on the left panel s...

Page 58: ...k The destination mask of the rule Src Port The source port number of the rule If the Protocol filed is not been selected or is selected as ICMP the Src Port filed can t be configured Dest Port The destination port number of the rule If the Protocol filed is not been selected or is selected as ICMP the Dest Port filed can t be configured Protocol The protocol of the rule It can be TCP UDP and ICMP...

Page 59: ...2 1p tag The traffic matches the rule will be added or modified the mark Note If you select 802 1p tag please make sure 802 1q is enabled in specified WAN interface otherwise 802 1p tag will not be tagged Apply After filling the parameters click this button to add a new rule QoS Rule List Shows the current rules on the device Delete Select a rule then press the delete button the selected rule will...

Page 60: ...he number of 802 1p tag Send priority The priority to transmit The traffic matches the 802 1p filed will be assigned this priority Modify Click this button to save your priority configuration 4 3 3 3 DSCP If the QoS policy is DSCP based you should configure the DSCP setting Press the DSCP config button to configure the DSCP priority 54 ...

Page 61: ...on the device 4 3 4 CWMP Choose Advanced CWMP you can configure the CWMP function in the screen shown in Figure 4 35 Here you may change the setting for the ACS s parameters CPE WAN Management Protocol CWMP is a protocol for communication between a CPE and Auto Configuration Server ACS The function supports TR 069 protocol which collects information diagnoses the devices and configures the devices...

Page 62: ... the system startup and will continue to send it periodically at an interval defined in Periodic Inform Interval field when this field is disabled the device will only send Inform RPC to the ACS server once at the system startup Periodic Inform Interval The interval to send Inform RPC Connection Request parameters User Name Password Enter the User Name and Password the remote ACS should use when c...

Page 63: ...mapping group in the screen shown in Figure 4 36 The device provides multiple interface groups up to five interface groups are supported including one default group Traffic coming from one interface of a group can only be flowed to the interfaces in the same interface group Thus the device can isolate traffic from group to group for some application By default all the interfaces LAN and WAN belong...

Page 64: ...nfigure the mapping group as follow steps 1 Select a group Group 1 Group 2 Group3 or Group 4 from the table then you can see the available interface LAN and WAN and grouped interface list 2 Select interfaces from the WAN and LAN interface list and add it to the Interface group using Add button or delete it from the Interface group using Del button to manipulate the required mapping of the ports 58...

Page 65: ...ce how many devices can access to the internet Here you can enable or disable the client limit function and the maximum device to access to the internet Figure 4 37 Client Limit Capability Enable or disable the client limit function Maximum Devices limit the maximum number of devices that can access to the Internet Note After configuration you need to click the Save button appeared on the left pan...

Page 66: ... host making request to join and leave multicast groups and a multicast router sending multicast packets to multicast groups on WAN side Figure 4 38 Note After configuration you need to click the Save button appeared on the left panel so that your configuration can still take effect after the Router reboots 4 4 2 UPnP Choose Service UPnP menu you can configure the UPnP in the screen shown in Figur...

Page 67: ...ration you need to click the Save button appeared on the left panel so that your configuration can still take effect after the Router reboots 4 4 3 SNMP Choose Service SNMP you can see the SNMP screen shown in Figure 4 40 Simple Network Management Protocol SNMP is a troubleshooting and management protocol which uses the UDP protocol on port 161 to communicate between the clients and servers The ro...

Page 68: ...in the MIB Community name read write Name of the read write community This read write community allows read and write operation to all objects defines as read writable in the MIB Note After configuration you need to click the Save button appeared on the left panel so that your configuration can still take effect after the Router reboots 4 4 4 DNS Choose Service DNS you can see the DNS screen shown...

Page 69: ...Domain Name System DDNS feature The feature lets you use a static host name with a dynamic IP address User should type the host name user name and password assigned to your ADSL Router by your Dynamic DNS provider Figure 4 42 DDNS provider There are two DDNS provider to be selected in order to register your device DynDNS org and TZO Hostname Domain name to be registered with the DDNS server Interf...

Page 70: ...xisted DDNS entry Note After configuration you need to click the Save button appeared on the left panel so that your configuration can still take effect after the Router reboots 4 5 Firewall Choose Firewall you can see the next submenus Click any of them and you will be able to configure the corresponding function 4 5 1 MAC Filter Choose Firewall MAC Filter menu and you will see the next screen sh...

Page 71: ...the connection matches the filter rule will be denied if the action is Allow the connection matches the filter rule will be allowed Source MAC The source MAC address of the filter entry Empty means matching any source MAC address Destination MAC The destination MAC address of the filter entry Empty means matching any source MAC address Add Click this button to add your rule into Current MAC Filter...

Page 72: ...l network Figure 4 44 SPI Firewall Choose to enable or disable the SPI firewall Rule Action The filter mode of this entry it can be Permit and Deny If the mode is Permit the IP connection matches the rule will be permitted if the mode is Deny the IP connection matches the rule will be denied Protocol The protocol of this entry it can be IP ICMP TCP and UDP Direction The direction of this entry it ...

Page 73: ...left panel so that your configuration can still take effect after the Router reboots 4 5 3 URL Filter Choose Firewall URL Filter menu and you will see the next screen shown in Figure 4 45 Here you can specify which site can t be accessed based on URL to secure or restrict your local network Figure 4 45 URL Blocking Capability Enable or disable the URL filtering function If it is enabled the access...

Page 74: ...k the Save button appeared on the left panel so that your configuration can still take effect after the Router reboots 4 5 4 ACL Choose Firewall ACL you can see the next screen shown in Figure 4 46 ACL function is used to specify which services are accessible from LAN or WAN side Figure 4 46 Direction Select The direction of the ACL entry it can be LAN or WAN 1 LAN If LAN is selected you can see t...

Page 75: ...ed only the hosts on the Current ACL Table can access the specified services IP Address The IP address of the host 0 0 0 0 means any IP Service Allowed LAN side The allowed services which the host can access It can be any or any specified service such as web telnet ftp tftp snmp and ping If select any it means the host can access all the services the router provides 2 WAN If WAN is selected you ca...

Page 76: ... it is Interface you should specify a WAN interface for this ACL entry If the WAN setting is IP Address you should specify the IP address of the host on WAN side Service Allowed You can specify the service and opened port for this service on WAN side The host access the specified port can obtain the specified service the router provides 70 ...

Page 77: ...u will be able to configure the corresponding function 4 6 1 Update 4 6 1 1 Firmware Update Choose Maintenance Update Firmware Update you can upgrade the firmware of the Router in the screen shown in Figure 4 49 Make sure the firmware you want to use is on the local hard drive of the computer Click Browse to find the local hard drive and locate the firmware to be used for upgrade Figure 4 49 71 ...

Page 78: ...ons so please back up the router s current settings before you upgrade its firmware 2 Do not turn off the router or press the Reset button while the firmware is being upgraded 3 The router will reboot after the upgrading has been finished 4 6 1 2 Backup Restore Choose Maintenance Update Backup Restore you can save the current configuration settings to a file and you can also restore the settings f...

Page 79: ...Guide Figure 4 51 Step 2 Save the file as the appointed file shown in Figure 4 52 Figure 4 52 To restore the Router s settings Step 1 Click the Browse button to locate the file for the device or enter the exact path in Load Settings from File field 73 ...

Page 80: ...er account of the router in the screen shown in Figure 4 53 Here you can add user account to access the web server and modify the password of the specified user Figure 4 53 4 6 3 System Restart Choose Maintenance Reboot you can select to restart the device with current settings or restore to factory default settings in the screen shown in Figure 4 54 Figure 4 54 74 ...

Page 81: ...hown in Figure 4 55 Simple Network Timing Protocol SNTP is a protocol used to synchronize the system time to the public SNTP server You can also configure the time manually Figure 4 55 1 Manually You need to set the date and time corresponding to the current time And then click Apply Changes button to save your configuration Figure 4 56 75 ...

Page 82: ...e time zone in which the device resides Get GMT Time After setting the NTP configuration correctly click this button to start the NTP function Then you can see the GMT time obtained from NTP server Note If changes are made after clicking Apply Changes button a Save button will appear on the left panel You need to click the Save button to make your changes take effect 4 6 5 Log Choose Maintenance L...

Page 83: ...the Save button to make your changes take effect 4 6 6 Diagnostic The router provides several useful diagnostic tools 4 6 6 1 Ping Choose Maintenance Diagnostic Ping you can ping a specified host shown in Figure 4 59 Figure 4 59 Host Enter the IP address or host name you want to ping After setting the host click the PING button to start the ping process then the ping result will be shown 77 ...

Page 84: ...imeout Datasize Data size of the trace route packet MaxHopCount The maximum hop count Interface The interface to which the trace route is to be applied For example you can set the host to www baidu com and then click the traceroute button to start the trace route process Several times later you can see the trace route result 4 6 6 3 OAM Loopback Choose Maintenance Diagnostic OAM Loopback you can p...

Page 85: ...End to End F4 Segment or F4 End to End VPI The VPI number you want to do the loopback diagnostics VCI The VCI number you want to do the loopback diagnostics 4 6 6 4 ADSL Diagnostic Choose Maintenance Diagnostic ADSL Diagnostic you will see the next screen shown in Figure 4 62 ADSL diagnostics allows you to diagnostics the ADSL tone 79 ...

Page 86: ...c and then wait several minutes later you will see the test result 4 6 6 5 Diag Test Choose Maintenance Diagnostic Diag Test you can select an interface to run diagnostic in Figure 4 63 The Diagnostic Test allows you to test your DSL connection of the physical layer and protocol layer for both LAN and WAN sides 80 ...

Page 87: ...TD851W 150Mbps Wireless N ADSL2 Modem Router User Guide Figure 4 63 Click the Run Diagnostic Test button to start the test and then wait several times later you can see the diagnostic result 81 ...

Page 88: ...tion RJ45 ports Auto MDI MDIX One RJ11 port LEDs Power ADSL Internet WLAN LAN WPS Network Medium 10Base T UTP category 3 4 5 cable 100Base TX UTP category 5 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 Win 9x ME 2000 XP Vista Windows 7 Physical and Environment W...

Page 89: ...gure the router 2 What can I do if I don t know or forgot my password 1 Restore the Router s configuration to its factory default settings If you don t know how to do that please refer to section T1 2 Use the default user name and password admin admin 3 Try to configure your Router once again by following the instructions in the previous steps of the QIG 3 What can I do if I cannot access the web ...

Page 90: ...TD851W 150Mbps Wireless N ADSL2 Modem Router User Guide Click Network Connections Right click Local Area Connection Click Properties Double click Internet Protocol TCP IP 84 ...

Page 91: ...TD851W 150Mbps Wireless N ADSL2 Modem Router User Guide Click OK Select Obtain DNS server address automatically Click OK Select Obtain an IP address automatically 85 ...

Page 92: ...ps Wireless N ADSL2 Modem Router User Guide For Windows Vista OS Go to Start Settings Control Panel and then you will see the following page Click View network status and tasks Click View status Click Properties 86 ...

Page 93: ...851W 150Mbps Wireless N ADSL2 Modem Router User Guide Double click Internet Protocol Version 4 TCP IPv4 Select Obtain an IP address automatically Select Obtain DNS server address automatically Click OK 87 ...

Page 94: ...odem Router User Guide For Windows 7 OS Go to Start Settings Control Panel and then you will see the following page Click Change adapter settings Click Properties Right click Local Area Connection Click View network status and tasks 88 ...

Page 95: ...851W 150Mbps Wireless N ADSL2 Modem Router User Guide Double click Internet Protocol Version 4 TCP IPv4 Select Obtain an IP address automatically Select Obtain DNS server address automatically Click OK 89 ...

Page 96: ...ISP and make sure all the VPI VCI Connection Type account username and password are correct If there are any mistakes please correct the settings and try again 3 If you still cannot access the Internet please restore your Router to its factory default settings and reconfigure your Router by following the instructions of this QIG 4 Please feel free to contact our Technical Support if the problem st...

Page 97: ...Router following the instructions of this QIG Please feel free to contact our Technical Support if the problem persists Note For more details about Troubleshooting and Technical Support contact information please log on to our Technical Support Website http www tp link com support Support asp 91 ...

Page 98: ...Canada Toll Free 1 866 225 8139 E mail support usa tp link com Service time 24hrs 7 days a week Germany Austria Tel 49 1805 875465 German Service 49 1805 TPLINK E mail support de tp link com Fee 0 14 EUR min from the German fixed phone network and up to 0 42 EUR min from mobile phone Service time Monday to Friday 9 00 AM to 6 00 PM GMT 1 or GMT 2 Daylight Saving Time in Germany Except bank holiday...

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