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DSL-504G ADSL Router User’s Guide

37

Virtual Server

A Virtual Server can allow remote users to access services on your LAN such as FTP for file transfers or SMTP
and POP3 for e-mail. The DSL-504G will accept remote requests for these services at your Global IP Address,
using the specified TCP or UDP protocol and port number, and then redirect these requests to the server on your
LAN with the Private IP address you specify. Remember that the Private IP Address must be within the range
specified for your LAN.

The Virtual Server feature employs UDP/TCP port redirection to direct traffic through the WAN port to
specified servers on your private network. Port redirection can also be used to direct potentially hazardous
packets to a proxy server outside your firewall. For example, you can configure the Router to direct HTTP
packets to a designated HTTP server in the DMZ. You can define a set of instructions for a specific incoming
port or for a range of incoming ports. Each instruction set or rule is indexed and can be modified or deleted later
as needed.

Virtual server configuration sets can be used together with complimentary features such as Firewall Rules, DMZ
devices and IP Filters to improve efficiency and security. Consider how these other functions will effect the
virtual server sets you have configured and enabled.

The table below describes the configuration settings presented in the Virtual Server menu.

NAT Configuration

The Virtual Server menu also allows you to enable and disable Network Address Translation (NAT) system wide.
See the previous discussion of NAT if you intend to disable it.

Figure 4- 3. Virtual Server Menu and List

To modify virtual server settings for any previously created virtual server set listed, click on the note pad icon in
the right hand column of the

Virtual Servers List

for the set you want to configure. The set will appear

highlighted in the list and the parameters that have been configured appear in the settings fields above the list.
Adjust the settings as desired and click the

Apply

button to put them into effect.

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Summary of Contents for DSL-504G

Page 1: ...DSL 504G ADSL Router User s Guide April 2004 ...

Page 2: ...cordance with the instructions may cause harmful interference to radio communications However there is no guarantee 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 equipment off and on the user is encouraged to try to correct the interference by one or more of the fol...

Page 3: ... part thereof that is replaced by D Link Australia or for which the purchase price is refunded shall become the property of D Link Australia upon replacement or refund Limited Software Warranty D Link Australia warrants that the software portion of the product Software will substantially conform to D Link Australia s then current functional specifications for the Software as set forth in the appli...

Page 4: ... from the outside of the package The product owner agrees to pay D Link Australia s reasonable handling and return shipping charges for any product that is not packaged and shipped in accordance with the foregoing requirements or that it is determined by D Link Australia not to be defective or non conforming D Link Australia accepts no Responsibility for any damage which can occur during shipping ...

Page 5: ... DAMAGE OF ANY CHARACTER WHEATHER DIRECT SPECIAL INCIDENTAL OR CONSEQUENTAL INCLUDING BUT NOT LIMITED TO DAMAGES FOR LOSS OF GOODWILL WORK STOPPAGE COMPUTER FAILURE OR MALFUNCTION LOSS OF INFORMATION OR DATA CONTAINED IN STORED ON OR INTERGRATED WITH ANY PRODUCT RETURNED TO D LINK AUSTRALIA FOR WARRANTY SERVICE RESULTING FROM THE USE OF THE PRODUCT RELATING TO WARRANTY SERVICE OR ARISING OUT OF AN...

Page 6: ...ration 11 Configuring IP Settings on Your Computer 11 Access the Web Manager 18 Using the Web Manager 19 Using the Setup Wizard 20 Configure WAN Connection 25 PPPoE and PPPoA Connection for WAN 26 Bridged Connection for WAN 27 Dynamic IP Address for WAN Connection 28 Static IP Address for WAN Connection 29 LAN IP Settings 30 DHCP Server Settings for the LAN 31 Use the Router for DHCP 32 Use the IS...

Page 7: ...ns 46 Tools and Utilities 48 Change System Password 48 Configure System Time 49 Save Router Configuration Settings 50 Save Configuration File to PC 51 Load Saved Configuration Files 51 Restore Factory Default Settings 51 Firmware Upgrade 52 Router Status Information 53 Device Information Display 53 Technical Specifications 56 Low Pass Filters 58 ...

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Page 9: ...y For some users only their account information Username and Password is required For others various parameters that control and define the Internet connection will be required Low Pass Filters Since ADSL and telephone services share the same copper wiring to carry their respective signals a filtering mechanism may be necessary to avoid mutual interference A low pass filter device can be installed...

Page 10: ...s the global IP settings must reside in a TCP IP enabled device on the LAN side of the bridge such as a PC a server a gateway device such as a router or similar firewall hardware The IP address can be assigned in a number of ways Your network service provider will give you instructions about any additional connection software or NIC configuration that may be required Record Your Account Informatio...

Page 11: ...e DSL 504G and will be used throughout your LAN The default subnet mask is 255 0 0 0 This can be changed later Information you will need about your LAN or computer Ethernet NIC If your computer has an Ethernet NIC you can connect the DSL 504G to this Ethernet port using an Ethernet cable You can also use the Ethernet port on the DSL 504G to connect to other Ethernet devices such as a Wireless Acce...

Page 12: ...or and DHCP Dynamic Host Configuration Protocol improve administration efficiency and improve security for your private network The advanced security enhancements packet filtering and port redirection can help protect your network from potentially devastating intrusions by malicious agents from outside your network What is ADSL Asymmetric Digital Subscriber Line ADSL is an access technology that u...

Page 13: ...ates up to 8 Mbps for downstream and 864 Kbps for upstream Friendly web based graphical user interface for configuration and management Supports up to eight simultaneous virtual connections for a single ADSL account Supports T1 413 issue 2 G dmt and G lite standards Auto handshake and rate adaptation for different ADSL flavors Widest range of DSLAM interoperability Supports bridged Ethernet over A...

Page 14: ...ed off this remains dark Status Lights steady green during power on self test POST Once the connection status has been settled the light will blink green If the indicator lights steady green after the POST the system has failed and the device should be rebooted ADSL Link Act Steady green light indicates a valid ADSL connection This will light after the ADSL negotiation process has been settled A b...

Page 15: ...set button to restore the settings to the factory default values CAUTION Using a power supply with a different voltage rating will damage and void the warranty for this product Note The Router may be rebooted by disconnecting and then reconnecting the power ADSL port connect to ADSL line Ethernet ports connect to Ethernet cable Factory Reset button Power input connect to power adapter ...

Page 16: ...nto a suitable nearby power source 2 You should see the Power LED indicator light up and remain lit The Status LED should light solid green and begin to blink after a few seconds 3 If the Ethernet port is connected to a working device check the Ethernet Link Act LED indicators to make sure the connection is valid The Router will attempt to establish the ADSL connection if the ADSL line is connecte...

Page 17: ...el Any connection to an Ethernet concentrating device such as a switch or hub must operate at a speed of 10 100 Mbps only When connecting the Router to any Ethernet device that is capable of operating at speeds higher than 10Mbps be sure that the device has auto negotiation NWay enabled for the connecting port Use standard twisted pair cable with RJ 45 connectors The RJ 45 port on the Router is a ...

Page 18: ... sure they have valid connections The Router will attempt to establish the ADSL connection if the ADSL line is connected and the connection is properly configured this should light up after several seconds To configure the ADSL connection read the instructions contained in the following chapters Factory Reset Button The Router may be reset to the original factory default settings by depressing the...

Page 19: ...d connect to the service provider s network There are different methods used to establish the connection to the service provider s network and ultimately to the Internet You should know what Encapsulation and connection type you are required to use for your ADSL service It is also possible that you must change the PVC settings used for the ADSL connection Your service provider should provide all t...

Page 20: ...e Windows XP for DHCP Use the following steps to configure a computer running Windows XP to be a DHCP client 1 From the Start menu on your desktop go to click on Control Panel 2 In the Control Panel folder click on Network and Internet Connections ...

Page 21: ...n the Network and Internet Connections folder click on Network Connections 4 In the Network Connections folder highlight the Local Area Connection icon by clicking on it once A new option is revealed under Network Tabs in the left side panel ...

Page 22: ...ange settings of the connection under Network Tabs 6 In the General Tab of the Local Area Connection Properties menu highlight Internet Protocol TCP IP under This connection uses the following items by clicking on it once Click on the Properties button ...

Page 23: ...rnet Protocol TCP IP does not display as an installed component click Install 6 In the Select Network Component Type dialog box select Protocol and then click Add 7 Select Internet Protocol TCP IP in the Network Protocols list and then click OK 8 You may be prompted to install files from your Windows 2000 installation CD or other media Follow the instructions to install the files 9 If prompted cli...

Page 24: ...erties dialog box check the Obtain an IP address automatically option 5 Click OK and OK again to confirm and save your changes You will be prompted to restart Windows 6 Click Yes and wait for your computer restarting and booting up again When it has restarted your computer is ready to use the Router s DHCP server Windows NT 4 0 workstations First check for the IP protocol and if necessary install ...

Page 25: ...box check the Obtain an IP address automatically option 5 Click OK and OK again to confirm and save your changes You will be prompted to restart Windows 6 Click Yes and wait for your computer restarting and booting up again Your computer is now ready to use the Router s DHCP server ...

Page 26: ...Router is used in the Address bar of your web browser window Type in http followed by the default IP address 10 1 1 1 in the address bar of the browser The URL in the address bar should read http 10 1 1 1 A new window appears prompting you for a user name and password needed to gain access the web configuration manager Use the default system user name admin and password admin for first time set up...

Page 27: ...nfiguration menus Advanced Click the Advanced tab to access the Virtual Server IP Filters IP Routing DMZ Firewall RIP PPP ADSL and ATM VCC menus Tools Click the Tools tab to access the Administrator Settings used to set the system user name and password System Time Configuration System Settings load and save configuration files Firmware Upgrade Miscellaneous Configuration Save Reboot Ping test ena...

Page 28: ... you will return to the first page without saving any of the settings changed during the process The first window of the Setup Wizard lists the basic steps in the process These steps are as follows 1 Set your new system password 2 Set the system time 3 Configure the connection to the Internet 4 Save the new configuration settings and reboot the system Step 1 asks you to set a password that is requ...

Page 29: ... Type for the WAN interface Your ISP has given this information to you If you do not know what type of connection to use exit the Setup Wizard and contact your ISP for the information The Setup wizard menu that appears when you click the Next button depends on what connection type you select The connection types available in the Setup Wizard menu are Dynamic IP Address Static IP Address PPPoE PPPo...

Page 30: ...r encapsulation specific to your service Click Next when you are ready to proceed to the Setup Completed menu Note Do not confuse the user name and password used to access the web based manager with the ADSL account user name and password needed for PPPoE connections to access the ISP s network Dynamic IP Address Connections If you selected the Dynamic IP Address connection type select the Connect...

Page 31: ... type change the WAN IP Address Subnet Mask ISP Gateway Address and if available Secondary DNS Server IP address as instructed by your ISP Select the Connection Type used for encapsulation If you have been instructed to change the VPI number and VCI number type in the new values Click Next when you are ready to proceed to the Setup Completed menu Bridge Connections If you selected the Bridge conne...

Page 32: ...DSL Router User s Guide 24 Do not turn the Router off while it is restarting When it is finished restarting the dialog box below appears Click Exit to close the box and continue to configure the Router as desired ...

Page 33: ... side of the first window that appears when you successfully access the web manager The WAN Settings menu is also used to configure the Router for multiple virtual connections The next chapter contains information on how to configure the Router for Multiple PVCs WAN Settings Menu PPPoE PPPoA Select the connection type used for your account The menu will display settings that are appropriate for th...

Page 34: ... ISP Choose PAP or CHAP from the pull down menu 6 The Obtain DNS Automatically is Enabled by default When this is enabled the Router will request DNS settings from your ISP s DNS server If your ISP has provided a specific IP address to use for DNS you should select Disabled and manually configure DNS settings in the DNS menu see Configure DNS below You will not be able to access Internet web sites...

Page 35: ...been told to do so These numbers are used to define a unique path for your connection Most users in Australia will use a VPI of 8 and a VCI of 35 Most users in New Zealand will use a VPI of 0 and a VCI of 100 If you have been given specific settings for this to configure type in the correct values assigned by your ISP 4 Change the Virtual Circuit setting to Enabled in the pull down menu 5 When you...

Page 36: ...Default Route this setting specifies that the Router be used to define the default route to the Internet for your LAN Whenever a computer on the LAN attempts to access the Internet the Router becomes the Internet gateway to the computer 4 Under the ATM VC Setting heading do not change the PVC Pvc0 index for the initial connection 5 Also under the ATM VC Setting you see two numbers the VCI and VPI ...

Page 37: ...structed to use enable Default Route this setting specifies that the Router be used to define the default route to the Internet for your LAN Whenever a computer on the LAN attempts to access the Internet the Router becomes the Internet gateway to the computer 5 Under the ATM VC Setting heading do not change the PVC Pvc0 index for the initial connection 6 Also under the ATM VC Setting you see two n...

Page 38: ...you change the IP address of the Router See the next section for information on DHCP setup To access the LAN Settings menu click the LAN button in the Home directory Configure LAN IP settings To change the LAN IP Address or LAN Network Mask type in the desired values and click the Apply button The new IP settings must be saved and the Router must be restarted for the settings to go into effect To ...

Page 39: ...ow the configuration menu Information about DHCP clients includes the IP address MAC address host name and lease time are displayed in the list Configure DHCP server settings for the LAN The three options for DHCP service are as follows You may use the Router as a DHCP server for your LAN You can disable DHCP service and manually configure IP settings for workstations You use DHCP service provided...

Page 40: ...ervice Be sure to save the new settings Use the ISP s DHCP Server Some ISP s can provide DHCP service for individual workstations on your private LAN To use the service you will need the IP address of the DHCP server on your ISP s network When this option is selected the Router automatically forwards DHCP requests from clients on your LAN to the outside DHCP server and then forwards the DHCP reply...

Page 41: ...NS Relay is disabled workstations must be configured to initiate DNS requests for each session and therefore you must configure DNS settings for the workstations Configure DNS IP address Usually an ISP will provide you with one or two DNS server IP addresses Enter these IP addresses in the available entry fields for the Preferred DNS Server and the Alternative DNS Server If you do not want to use ...

Page 42: ...ve settings you need to access the Miscellaneous Configuration menu Click on the Tools directory tab then click the Misc menu button to view the menu pictured below Save Settings and Restart the Router To save the new settings click the Save and Reboot button It will take about two minutes for the whole process to be completed Do not turn off the power while the Router is saving and restarting ...

Page 43: ...s multiple PVCs please skip ahead to the section Multiple Virtual Connections Figure 4 1 Advanced configuration menus Directory Configuration and Read only Menus Home Click the Home tab to access the Setup Wizard WAN Configuration LAN IP Configuration DHCP for the LAN Setup and DNS IP Configuration menus These menus are discussed in the previous Chapter on Basic Router Configuration Advanced Click...

Page 44: ...ervice from your ISP but check with the ISP before doing this DMZ Since some applications are not compatible with NAT the Router supports use of a DMZ IP address for a single host on the LAN This IP address is not protected by NAT and will therefore be visible to agents on the Internet with the right type of software Keep in mind that any client PC in the DMZ will be exposed to various types of se...

Page 45: ... port or for a range of incoming ports Each instruction set or rule is indexed and can be modified or deleted later as needed Virtual server configuration sets can be used together with complimentary features such as Firewall Rules DMZ devices and IP Filters to improve efficiency and security Consider how these other functions will effect the virtual server sets you have configured and enabled The...

Page 46: ...DP TCP port some additional configuration may be required for the servers or workstations using the application on the LAN side Port redirection must be used with a specified server or computer on the LAN identified by the Private IP address Public Port The Public Port is the TCP UDP port on the WAN interface Select one of the following options from the pull down menu to define a Single Port Range...

Page 47: ...newly created rule appears listed in the Outbound Filter List at the bottom of the menu The table below describes the various parameters that are configured for the filter rules Figure 4 4 Filters Configuration Menu To modify any previously created filter rule click on the note pad icon in the right hand column of the Inbound Filter or Outbound Filter List for the set you want to configure The set...

Page 48: ...Outbound filter rule You can opt to indicate a Single IP an IP Range or Any IP from the pull down menu Source Port The Source Port is the TCP UDP port on either the LAN or WAN depending on if you are configuring an Outbound or Inbound Filter rule Select one of the following options from the pull down menu to define a Single Port Range of Ports Any Port or Safe Ports ports above 1024 Destination Po...

Page 49: ...P Scan TCP Session Scan Xmas Scan Null Scan RST Scan SYNACK Scan FIN Scan ACK Scan You can also choose to Enable or Disable protection against various denial of service type attacks with the DOS Protection option A denial of service attack is characterized by an explicit attempt by attackers to prevent legitimate users of a service from using that service Examples include attempts to flood a netwo...

Page 50: ...rrangements it may be desirable For example if you are using another router Layer 3 switch or similar gateway device on your LAN or if you have setup a VPN tunnel to a remote LAN with its own gateway device you may need to use this feature Figure 4 6 Static Routing menu To add a static route to a specific destination IP address enter a Destination IP address Netask and Gateway IP address Click App...

Page 51: ...ied Current RIP configurations cannot be edited To remove a RIP configuration click on the trashcan icon for the set Remember to save the configuration changes RIP Select Enabled to enable the RIP settings you are configuring here Select Disable to disable the RIP configuration IF Name Select the Interface for which you are applying the RIP configuration Interface eth 0 represents the LAN The ppp ...

Page 52: ... the WAN or the Internet Figure 4 9 PPP Connection settings menu If you want the Internet or WAN connection to be available any time a host on your LAN requests access select the Connect On Demand option and choose an idle time of 0 minutes If your ISP account is billed according to the amount of time the Router is connected choose the Connection On Demand option and configure the idle time to 1 o...

Page 53: ...ngs found on the WAN menu in the Home directory Figure 4 10 ATM Virtual Circuit configuration menu To configure an existing PVC configuration set click the corresponding notepad icon in the right hand column of the ATM VCs List The PVCs current settings appear above in the entry fields of the ATM VC Settings menu Configure the appropriate settings and click the Apply button to put the new settings...

Page 54: ...he necessary arrangements have been made to use the Router with multiple virtual connections follow the instructions below to setup the Router using the VPI VCI settings given to you by your server provider Configure Multiple PVCs Additional PVCs can be configured by first accessing the WAN configuration menu in the Home directory Figure 4 11 Select new PVC to configure in the WAN menu The PVC pul...

Page 55: ...tion Figure 4 12 Configure new VC The new VC appears listed in the ATM VC Setting menu located in the Advanced directory Figure 4 13 New VC listed in ATM VC Settings menu Any VC may be configured in the ATM VC menu by clicking the notepad icon for the PVC you want to configure VCs configured with PPP connection types can be further configured in the PPP menu ...

Page 56: ...ult settings and to perform miscellaneous actions such performing Ping tests These menus are described below Change System Password To change the password used to access the Router web manager click the Admin button in the Tools directory Type the New Password and Confirm Password to be certain you have typed it correctly Click the Apply button to activate the new password The System User Name Log...

Page 57: ...m an SNTP server or your computer s system clock Figure 4 15 Time Settings Menu If you opt to use the Automatic option you must have an IP address of an available SNTP server Date settings use the format Year Month Date Time settings use the format Hour 24 hour clock Minute Second Click the Apply to set the Date and Time settings ...

Page 58: ...the instructions below to save configuration files to your PC Figure 4 16 Miscellaneous Configuration Menu Other functions available in this menu are a Ping test and IGMP enable disable Ping Test The Ping test functions on the WAN and LAN interfaces Type the IP address you want to check in the space provided and click the Ping button Read the Ping test result in the space immediately below IGMP Th...

Page 59: ...guration Files To load a previously saved configuration file click the Browse button and locate the file on your computer Or type the full path and file name of the cfg file in the space provided Click the Load button to begin transferring and loading the cfg file to the Router Confirm that you want to load the file when prompted and the process is completed automatically The Router will reboot an...

Page 60: ...the latest firmware for the device Note that the device configuration settings may return to the factory default settings so make sure you save the configuration settings with the System Settings menu described above Figure 4 18 Firmware Upgrade To upgrade firmware type in the name and path of the file or click on the Browse button to search for the file Click the Apply button to begin copying the...

Page 61: ...ernet LAN connection IP Address and Subnet Mask information will be displayed as well as the setting Enabled Disabled for the DHCP Server WAN ADSL The MAC Address of the Ethernet WAN connection IP Address Subnet Mask Default Gateway and DNS Domain Name Server information will be listed The connection type includes Dynamic Static and PPPoE You may click the DHCP Release or Renew the IP address assi...

Page 62: ...s occur with the ADSL connection Figure 4 20 ADSL Line Condition Log The log file keeps record of the events and activities occurring on the device It can display up to 256 events The latest activities will overwrite the outdated ones When the device is rebooted the logs are automatically cleared Figure 4 21 View Log ...

Page 63: ...e logs completely Save Log Save log file to your hard drive Traffic Statistics The device keeps statistic of the data traffic that it handles You are able to read the amount of Receive and Transmit packets that pass through the device on the ADSL interface or Ethernet interface Click the Refresh button to update the counters and the Reset button to clear the counters The traffic counter will reset...

Page 64: ...ver RFC2131 DHCP Client RFC2131 DHCP Relay RFC2132 ARP AAL5 RFC1661 Point to Point Protocol RFC2364 PPP over ATM RFC2516 PPP over Ethernet RFC1483 2684 Bridged Routed Ethernet over ATM RFC 1334 PAP RFC 1994 CHAP Data Transfer Rate G dmt full rate Downstream up to 8 Mbps Upstream up to 864 Kbps G lite Downstream up to 1 5 Mbps Upstream up to 512 Kbps Media Interface RJ 11 port ADSL telephone line c...

Page 65: ...0V 240V AC 50 60Hz Output 12V AC 1 2A Power Consumption 12 Watts max Operating Temperature 0 to 40 C 32 104 F Humidity 5 to 95 non condensing Dimensions 180 x 141 x 30 mm Weight 332 g EMI CE Class B FCC Class B Part 15 Safety CSA International Reliability Mean Time Between Failure MTBF min 4 years ...

Page 66: ... or split your telephone line into two separate lines one for regular telephone service and the other for ADSL then you do not need to use any type of filter device Follow the instructions given to you by your ADSL service provider ISP or telephone company about where and how you should connect the Router to the ADSL line In Line Filters Two common styles of low pass filters are shown in this sect...

Page 67: ...he splitter has three RJ 11 ports used to connect to the wall jack the Router and if desired a telephone or telephone device The connection ports are typically labeled as follows Line This port connects to the wall jack ADSL This port connects to the Router Phone This port connects to a telephone or other telephone device The diagram below illustrates the proper use of the split line style filter ...

Page 68: ......

Page 69: ...alia 1 Giffnock Avenue North Ryde NSW 2113 Sydney Australia TEL 61 2 8899 1800 FAX 61 2 8899 1868 TOLL FREE Australia 1300 766 868 TOLL FREE New Zealand 0800 900 900 URL www dlink com au E MAIL support dlink com au info dlink com au ...

Page 70: ...999 1000 or more 3 What network protocol s does your organization use XNS IPX TCP IP DECnet Others_______________________________________________________ 4 What network operating system s does your organization use D Link LANsmart Novell NetWare NetWare Lite SCO Unix Xenix PC NFS 3Com 3 Open Banyan Vines DECnet Pathwork Windows NT Windows NTAS Windows 95 Others_____________________________________...

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