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6.6 DNS 

6.6.1 DNS Server

 

If 'Enable Automatic Assigned DNS' checkbox is selected, this router will accept the 
first received DNS assignment from one of the PPPoA, PPPoE or MER/DHCP enabled 

PVC(s) during the connection establishment. If the checkbox is not selected, enter 
the primary and optional secondary DNS server IP addresses. Click 'Save' button to 

save the new configuration. You must reboot the router to make the new 
configuration effective. 

 

 

 
 

6.6.2 Dynamic DNS 

 

The Dynamic DNS service allows you to alias a dynamic IP address to a static 
hostname in any of the many domains, allowing your DSL router to be more easily 
accessed from various locations on the Internet. 

 
For this option to be available (displayed on your screen), you need to have set up a 

WAN PPPoE or PPPoA interface. This can be done at 

www.dyndns.org

 . Here you will 

register your host name, username and password.  

 
 

Click on the Dynamic DNS button. The following screen will be displayed.

 

 

 

57

Содержание CT-5071E

Страница 1: ...CT 5071E ADSL2 Ethernet Router User s Manual Version A4 0 May 07 2007 261063 011 ...

Страница 2: ...r supply is clearly stated in Appendix B Specifications Recycling For The Environment Never throw your electronic equipment out with household waste Ask for information from your town council on how to correctly dispose of it so that it does not damage the environment Always respect the current legislation regarding waste disposal Persons who do not comply are subject to the sanctions and penaltie...

Страница 3: ...on No part of this document may be translated transcribed reproduced in any form or by any means without prior written permission by Comtrend Corporation Technical support When you find the product out of service or that it doesn t work properly please contact technical support engineer for immediate servicing or email to INT support comtrend com 2 ...

Страница 4: ...atistics 15 4 2 2 WAN Statistics 16 4 2 3 ATM statistics 17 4 2 4 ADSL Statistics 19 4 2 5 Route 21 4 2 6 ARP 21 4 2 7 Bridging 22 4 2 8 IGMP Proxy 23 CHAPTER 5 QUICK SETUP 24 5 1 AUTO QUICK SETUP 25 5 2 MANUAL QUICK SETUP 26 5 2 1 PPP over ATM PPPoA and PPP over Ethernet PPPoE 28 5 2 2 MAC Encapsulation Routing MER 32 5 2 3 IP Over ATM IPoA 36 5 2 4 Bridging 40 CHAPTER 6 ADVANCED SETUP 42 6 1 WAN...

Страница 5: ... 7 DIAGNOSTICS 61 CHAPTER 8 MANAGEMENT 62 8 1 SETTINGS 62 8 1 1 Configuration Backup 63 8 1 2 Configuration Update 63 8 1 3 Restore Default 64 8 2 SYSTEM LOG 66 8 3 INTERNET TIME 68 8 4 ACCESS CONTROL 69 8 4 1 Services 70 8 4 2 Access IP Addresses 71 8 4 3 Password Change 72 8 5 UPDATE SOFTWARE 73 8 6 SAVE AND REBOOT 74 APPENDIX A PIN ASSIGNMENTS 75 APPENDIX B SPECIFICATIONS 76 4 ...

Страница 6: ...ntial applications that require wired connectivity to an ADSL broadband network The CT 5071E supports up to 4 contiguous virtual connections allowing for multiple simultaneous Internet connections 1 1 Features IP MAC address filtering Static route RIP RIP v2 routing functions Dynamic IP assignment NAT PAT IGMP Proxy DHCP Server Relay Client DNS Proxy Up to 4 VCs Web based management Remote configu...

Страница 7: ...1 2 Application The following diagram depicts the application of the CT 5071E 6 ...

Страница 8: ...s powered down Green On The ADSL link is established Off The ADSL link is not established ADSL LINK Green Blink The ADSL link is training On Normal operating status Green Off The ADSL link is terminated ADSL TX RX Green Blink Data transmitting or receiving over ADSL Green On An Ethernet Link is established Off An Ethernet Link is not established LAN LINK Green Blink Data transmitting or receiving ...

Страница 9: ...to four LAN devices The ports are auto sensing MDI X and either straight through cable or crossover cable can be used Connection to Power Connect the Power jack to the shipped power cord Attach the power adapter to the wall outlet or other AC source After all connections have been made push the power switch in to the on position After powering on the router performs a self test Wait for a few seco...

Страница 10: ...n to the device 3 1 IP Address The default IP address of the CT 5071E LAN port is 192 168 1 1 To configure the CT 5071E for the first time the configuration PC must have a static IP address within the 192 168 1 x subnet Follow the steps below to configure your PC IP address to use subnet 192 168 1 x STEP 1 Right click on the Local Area Connection under the Network and Dial Up connection window and...

Страница 11: ...IP address for the router in the Web address field For example if the IP address is 192 168 1 1 type http 192 168 1 1 STEP 2 You will be prompted to enter your user name and password Type root in the user name and 12345 in the password field and click OK These values can be changed later in the Web User Interface by selecting the Management link STEP 3 After successfully logging in you will reach ...

Страница 12: ...user interface or other management protocols To load the factory default settings hold the reset button down for at least 5 seconds until the power indicator blinks or by clicking the Restore Default Configuration option in the Restore Settings screen The following default settings are present when setting up the router for the first time The PC running the browser can be attached to the Ethernet ...

Страница 13: ...Chapter 4 Device Info After login the Device Info screen appears as shown Note The selections available on the left side of menu are based upon the configured connection 12 ...

Страница 14: ...ion Interface Shows connection interfaces Protocol Shows the connection type such as PPPoE PPPoA etc IGMP Shows the statue of the IGMP function Firewall Shows if the Firewall enabled or disabled Nat Shows if the Network Address Translation NAT is enabled or disabled QoS Shows the statue of the QoS function State Shows the connection state of the WAN connection Status Lists the status of DSL link I...

Страница 15: ...4 2 Statistics Selection of the Statistics screen provides statistics for the Network Interface of LAN WAN ATM and ADSL All statistics screens are updated every 15 seconds 14 ...

Страница 16: ...shows interface statistics for ATM AAL5 interface and Ethernet interfaces The Network Statistics screen shows interface statistics for LAN of Ethernet interfaces This shows byte transfer packet transfer Error and Drop statistics for the LAN interface 15 ...

Страница 17: ...Shows the connection type such as PPPoE PPPoA etc Interface Shows connection interfaces Received Transmitted Bytes Pkts Errs Drops Rx TX receive transmit packet in Byte Rx TX receive transmit packets Rx TX receive transmit the packets which are errors Rx TX receive transmit the packets which are dropped 16 ...

Страница 18: ...If cells with undefined PTI values are discarded they are also counted here In Hec Errors Number of cells received with an ATM Cell Header HEX error In Invalid Vpi Vci Errors Number of cells received with an unregistered VCC address In Port Not Enabled Errors Number of cells received on a port that has not been enabled In PTI Errors Number of cells received with an ATM header Payload Type Indicato...

Страница 19: ...scards Number of received AAL5 AAL0 CPCS PDUs discarded due to an input buffer overflow condition Out Discards This field is not currently used ATM AAL5 LAYER STATISTICS FOR EACH VCC OVER ADSL INTERFACE Field Descriptions CRC Errors Number of PDUs received with CRC 32 errors SAR TimeOuts Number of partially re assembled PDUs which were discarded because they were not fully re assembled within the ...

Страница 20: ...atistics The following figure shows the ADSL Network Statistics screen Within the ADSL Statistics window a bit Error Rate Test can be started using the ADSL BER Test button The Reset button resets the statistics 19 ...

Страница 21: ...es Total number of super frames Super Frame Errors Number of super frames received with errors RS Words Total number of Reed Solomon code errors RS Correctable Errors Total Number of RS with correctable errors RS Uncorrectable Errors Total Number of RS words with uncorrectable errors HEC Errors Total Number of Header Error Checksum errors OCD Errors Total Number of out of cell Delineation errors L...

Страница 22: ...4 2 5 Route Choose Route to display the routes that the route information has learned 4 2 6 ARP Click ARP to display the ARP information 21 ...

Страница 23: ...4 2 7 Bridging Click Bridging to display the bridge entries information 22 ...

Страница 24: ...4 2 8 IGMP Proxy Click IGMP Proxy to display the IGMP proxy entries information 23 ...

Страница 25: ... client or whether the CT 5071E is to run the PPPoE client The CT 5071E can support both cases simultaneously If some or none of the LAN side devices do not run PPPoE client then select PPPoE If every LAN side device is running a PPPoE client then select Bridge In PPPoE mode CT 5071E also supports pass through PPPoE sessions from the LAN side while simultaneously running a PPPoE client fro non PPP...

Страница 26: ... for the Quick Setup menu option to be displayed This can be done by clicking on the Advanced menu bar selecting the bridge PVE and removing it Then save and reboot the device to see the Quick Setup option in the menu bar 1 Select Quick Setup to display the DSL Quick Setup screen 2 Click Next to start the setup process Follow the online instructions to complete the setting This procedure will skip...

Страница 27: ...manual configuration of the connection type Un tick this checkbox to enable manual setup and display the following screen STEP 2 Enter the Virtual Path Identifier VPI and Virtual Channel Identifier VCI Select Enable Quality Of Service if required Click Next STEP 3 Then choose the Encapsulation mode 26 ...

Страница 28: ... following screen Choosing different connection types pops up different settings requests Enter appropriate settings that are requested by your service provider The following descriptions state each connection type setup separately 27 ...

Страница 29: ... WEB user interface allows a maximum of 256 characters in the PPP user name and a maximum of 32 characters in PPP password Encapsulation Mode Choosing different connection types provides different encapsulation modes PPPoA VC MUX LLC ENCAPSULATION PPPoE LLC SNAP BRIDGING VC MUX MER LLC SNAP BRIDGING VC MUX IPoA LLC SNAP ROUTING VC MUX Bridging LLC SNAP BRIDGING VC MUX PPPoE Service Name For PPPoE ...

Страница 30: ...to the remote since the DHCP server within the ADSL router has a single IP address to assign to a LAN device NAPT and firewall are disabled when this option is selected The ADSL router becomes the default gateway and DNS server to the PC through DHCP using the LAN interface IP address The ADSL router extends the IP subnet at the remote service provider to the LAN PC That is the PC becomes a host b...

Страница 31: ...elect the radio box Enable DHCP server on the LAN to enter the starting IP address and end IP address and DHCP lease time This configures the router to automatically assign IP addresses default gateway address and DNS server addresses to each of your PCs Select Enable DHCP Server Relay if required and enter the DHCP Server IP Address This allows the router to relay the DHCP packets to the remote D...

Страница 32: ... Click Next to display the WAN Setup Summary screen that presents the entire configuration summary Click Save Reboot if the settings are correct Click Back if you wish to modify the settings 5 After clicking Save Reboot the router will save the configuration to the flash memory and reboot The Web UI will not respond until the system is brought up again After the system is up the Web UI will refres...

Страница 33: ...the WAN IP settings Notice DHCP can be enabled for PVC in MER mode if Obtain an IP address automatically is chosen Changing the default gateway or the DNS effects the whole system Configuring them with static values will disable the automatic assignment from DHCP or other WAN connection If you configure static default gateway over this PVC in MER mode you must enter the IP address of the remote ga...

Страница 34: ...ox is selected the firewall submenu on the left side main panel will be displayed after system reboot The user can then configure firewall features after the system comes up If firewall is not used this checkbox should be de selected to free up system resources for better performance When system comes back after reboot the Firewall submenu will not be displayed on the left main panel Enable IGMP M...

Страница 35: ...erver on the LAN to enter the starting IP address and end IP address and DHCP lease time This configures the router to automatically assign IP addresses default gateway address and DNS server addresses to each of your PCs Select Enable DHCP Server Relay if required and enter the DHCP Server IP Address This allows the router to relay the DHCP packets to the remote DHCP server The remote DHCP server...

Страница 36: ...Setup Summary screen presents the entire configuration summary Click Save Reboot if the settings are correct Click Back if you wish to modify the settings The following screen will be displayed After clicking Save Reboot the router will save the configuration to the flash memory and reboot The Web UI will not respond until the system is brought up again After the system is up the Web UI will refre...

Страница 37: ...alues provided by the ISP and click Next 4 Select the IP over ATM IPoA radio button and click Next The following screen appears Notice that DHCP is not supported over IPoA The user must enter the IP address or WAN interface for the default gateway setup and the DNS server addresses provided by the ISP 5 Click Next The following screen appears 36 ...

Страница 38: ...system comes up If firewall is not used this checkbox should be de selected to free up system resources for better performance When system comes back after reboot the Firewall submenu will not be displayed on the left main panel Enable Quality Of Service Enabling IP QoS for a PVC improves performance for selected classes of applications However since IP QoS also consumes system resources the numbe...

Страница 39: ... addresses default gateway address and DNS server addresses to each of your PCs Select Enable DHCP Server Relay if required and enter the DHCP Server IP Address This allows the router to relay the DHCP packets to the remote DHCP server The remote DHCP server will provide the IP address To configure a secondary IP address for the LAN port click the box as shown below Note 1 Enable DHCP Server Relay...

Страница 40: ...ry Click Save Reboot if the settings are correct Click Back if you wish to modify the settings The following screen will be displayed 8 After clicking Save Reboot the router will save the configuration to the flash memory and reboot The Web UI will not respond until the system is brought up again After the system is up the Web UI will refresh to the Device Info page automatically The CT 5071E is r...

Страница 41: ...he following screen appears To use the bridge service tick the checkbox Enable Bridge Service and enter the service name 5 Click the Next button to continue Enter the IP address for the LAN interface The default IP address is 192 168 1 1 The LAN IP interface in bridge operating mode is needed for local users to manage the ADSL router Notice that there is no IP address for the WAN interface in brid...

Страница 42: ...ext button The following screen will be displayed The WAN Setup Summary screen presents the entire configuration summary Click Save Reboot if the settings are correct Click Back if you wish to modify the settings 41 ...

Страница 43: ...ection Interface Name of the interface for WAN Protocol Shows bridge or router mode IGMP Shows enable or disable IGMP proxy Firewall Shows if the Firewall enabled or disabled Nat Shows if the Network Address Translation NAT is enabled or disabled QoS Shows enable or disable IGMP QoS State Shows enable or disable WAN connection 6 1 WAN For further information on WAN please reference section 4 1 Pag...

Страница 44: ...n data and reboots the router to make the new configuration effective IP Address Enter the IP address for the LAN port Subnet Mask Enter the subnet mask for the LAN port To configure a secondary IP address for the LAN port click the box as shown below IP Address Enter the secondary IP address for the LAN port Subnet Mask Enter the secondary subnet mask for the LAN port 43 ...

Страница 45: ...er allows you to direct incoming traffic from WAN side identified by Protocol and External port to the Internal server with private IP address on the LAN side The Internal port is required only if the external port needs to be converted to a different port number used by the server on the LAN side A maximum 32 entries can be configured To add a Virtual Server simply click the Add button The follow...

Страница 46: ...ured External Port End Enter the ending external port number when you select Custom Server When a service is selected the port ranges are automatically configured Protocol User can select from TCP TCP UDP or UDP Internal Port Start Enter the internal port starting number when you select Custom Server When a service is selected the port ranges are automatically configured Internal Port End Enter th...

Страница 47: ...opens up the Open Ports in the firewall when an application on the LAN initiates a TCP UDP connection to a remote party using the Triggering Ports The Router allows the remote party from the WAN side to establish new connections back to the application on the LAN side using the Open Ports A maximum 32 entries can be configured To add a Trigger Port simply click the Add button The following will be...

Страница 48: ...umber when you select custom application When an application is selected the port ranges are automatically configured Trigger Protocol User can select from TCP TCP UDP or UDP Open Port Start Enter the starting open port number when you select custom application When an application is selected the port ranges are automatically configured Open Port End Enter the ending open port number when you sele...

Страница 49: ...orward IP packets from the WAN that do not belong to any of the applications configured in the Virtual Servers table to the DMZ host computer Enter the computer s IP address and click Apply to activate the DMZ host Clear the IP address field and click Apply to deactivate the DMZ host 48 ...

Страница 50: ...r frames will be FORWARDED except those matching with any of the specified rules in the following table BLOCKED means that all MAC layer frames will be BLOCKED except those matching with any of the specified rules in the following table The default is FORWARD you change by clicking the Change Policy button Choose Add or Remove to configure MAC filtering rules The following screen pops up when you ...

Страница 51: ... Address Define the source MAC address Set Multicast Click this button it will automatically set the multicast MAC address From Interface Select the incoming packet interface To Interface Select the outgoing packet interface 6 4 2 Parental Control Click on Parental Control in the menu bar Then click Add The following screen will be displayed 50 ...

Страница 52: ...Input your User Name Select the day of the week and the time that you want the restriction in place as shown below Then click Save Apply The following screen will be displayed 51 ...

Страница 53: ... specifying a new filter name and at least one condition below All of the specified conditions in this filter rule must be satisfied for the rule to take effect Click Save Apply to save and activate the filter Outgoing Note The default setting for Outgoing is Accepted To add a filtering rule simply click the Add button The following screen will be displayed 52 ...

Страница 54: ...IP address Enter source IP address Source Subnet Mask Enter source subnet mask Source Port port or port port Enter source port number Destination IP address Enter destination IP address Destination Subnet Mask Enter destination subnet mask Destination port port or port port Enter destination port number 53 ...

Страница 55: ... Note The default setting for Incoming is Blocked To add a filtering rule simply click the Add button The following screen will be displayed To configure the parameters please reference Outgoing table above 54 ...

Страница 56: ...r will accept the first received default gateway assignment from one of the PPPoA PPPoE or MER DHCP enabled PVC s If the checkbox is not selected enter the static default gateway AND OR a WAN interface Click Save Apply button to save it NOTE If changing the Automatic Assigned Default Gateway from unselected to selected You must reboot the router to get the automatic assigned default gateway 55 ...

Страница 57: ...tic routes and allows configuring static routes Choose Add or Remove to configure the static routes To add static route click the Add button to display the following screen Enter the destination network address subnet mask gateway AND OR available WAN interface then click Save Apply to add the entry to the routing table 56 ...

Страница 58: ...n You must reboot the router to make the new configuration effective 6 6 2 Dynamic DNS The Dynamic DNS service allows you to alias a dynamic IP address to a static hostname in any of the many domains allowing your DSL router to be more easily accessed from various locations on the Internet For this option to be available displayed on your screen you need to have set up a WAN PPPoE or PPPoA interfa...

Страница 59: ...ver Interface Select the interface from the list Username Enter the username for the dynamic DNS server Password Enter the password for the dynamic DNS server To add a dynamic DDNS select your D Dns provider Then input Hostname Username and Password Click Save Apply The following screen will be displayed 58 ...

Страница 60: ...59 ...

Страница 61: ... the T1 413 if you want the system to use only T1 413 mode ADSL2 Enabled The device can support the functions of the ADSL2 AnnexL Enabled The device can support enhance the long loop test ADSL2 Enabled The device can support the functions of the ADSL2 AnnexM Covers a higher upstream data rate version by making use of some of the downstream channels Inner Pair Reserved only Outer Pair Reserved only...

Страница 62: ...onsistent If the test continues to fail click Help and follow the troubleshooting procedures Test Description ADSL Synchronization Pass Indicates that the DSL modem has detected a DSL signal from the telephone company A solid WAN LED on the router also indicates the detection of a DSL signal from the telephone company Fail indicates that the DSL modem does not detect a signal from the telephone co...

Страница 63: ...ts the following maintenance functions and processes System log Update software Restore Settings Local Access User Access Remote Access 8 1 Settings The Settings option allows you to back up your settings to a file retrieve the setting file and restore the settings 62 ...

Страница 64: ...be prompted to define the location of the backup file to save After choosing the file location click Backup Settings Te file will then be saved to the assigned location 8 1 2 Configuration Update The Update Settings screen allows you to update the configuration image file Manual configuration upgrades from a locally stored file can be performed using the following screen 63 ...

Страница 65: ...ll erase the entire configuration data saved on the flash memory NOTE Restoring system settings requires a system reboot This necessitates that the current Web UI session be closed and restarted Before restarting the connected PC must be configured with a static IP address in the 192 168 1 x subnet in order to configure the CT 5071E Default settings The CT 5071E default settings are LAN port IP 19...

Страница 66: ...reopening your web browser If necessary reconfigure your PC s IP address to match your new configuration 65 ...

Страница 67: ...eps below to enable and view the system log 1 Click Configure System Log to display the following screen 2 Select from the desired Log options described in the following table and then click Save Apply Option Description Log Indicates whether the system is currently recording events The user can enable or disable event logging By default it is disabled To enable it tick Enable and then Apply butto...

Страница 68: ...vel whereas Debugging is the least important For instance if the log level is set to Debugging all the events from the lowest Debugging level to the most critical level Emergency level will be recorded If the log level is set to Error only Error and the level above will be logged Display Level Allows the user to select the logged events and displays on the View System Log page for events of this l...

Страница 69: ...ox displayed on the screen Then click Save Apply Note This menu option is not displayed in bridged mode When Automatically synchronize with Internet time servers is selected the following screen is displayed To get Greenwich Mean Time from the network time server select from the drop down menu Then select the time zone offset from the drop down menu based on your location 68 ...

Страница 70: ...8 4 Access Control The Access Control option under Management menu bar configures the access related parameters including three parts Services IP Address and Passwords 69 ...

Страница 71: ...imits or opens the access services over the LAN or WAN These services are provided FTP HTTP ICMP SSH Security Socket Share TELNET and TFTP Enable the service by checking the item in the corresponding checkbox and then click Save Apply 70 ...

Страница 72: ... address If the Access Control Mode is enabled only the allowed IP addresses can access the router Before you enable it configure the IP addresses by clicking the Add button Enter the IP address and click Apply to allow the PC with this IP address managing the DSL Router 71 ...

Страница 73: ...o change the current password do the following Select Username root Enter Old Password and New Password Then enter the new password again in the Confirm Password box to verify the new password Then click Save Apply button 72 ...

Страница 74: ...formed using the following screen Step 1 Obtain an updated software image file from your ISP Step 2 Enter the path to the image file location in the box below or click the Browse button to locate the image file Step 3 Click the Update Software button once to upload the new image file NOTE The update process takes about 2 minutes to complete and your DSL Router will reboot 73 ...

Страница 75: ...t option saves the configurations and reboots the router Close the DSL Router Configuration window and wait for 2 minutes before reopening your web browser If necessary reconfigure your PC s IP address to match your new configuration 74 ...

Страница 76: ...efinition Pin Definition 1 4 ADSL_TIP 2 5 3 ADSL_RING 6 Pin Assignments of the RJ11 Port LAN Port RJ45 Pin Definition Pin Definition 1 Transmit data 5 NC 2 Transmit data 6 Receive data 3 Receive data 7 NC 4 NC 8 NC Pin assignments of the LAN Port 75 ...

Страница 77: ...dge Route RFC 2516 PPPoE RFC 1577 IPoA AAL type AAL5 ATM service class UBR CBR VBR ATM UNI support UNI3 1 4 0 OAM F4 F5 Management Telnet Web based management Configuration backup and restoration Software upgrade via HTTP TFTP server or FTP server Bridge Functions Transparent bridging and learning IEEE 802 1d Spanning Tree Algorithm Routing Functions Static route RIP and RIPv2 NAT PAT DHCP Server ...

Страница 78: ... Operating temperature 0 50 degrees Celsius Relative humidity 5 90 non condensing Dimensions 92mm W x 34mm H x 114mm D Certifications FCC Part 15 class B FCC Part 68 CE Note Specifications are subject to change without notice ...

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