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33 

11.5 DMZ 

 

If you have a local client PC that cannot run an Internet application (e.g. Games) 
properly from behind the NAT firewall, then you can open the client up to 
unrestricted two-way Internet access by defining a DMZ Host. The DMZ function 
allows you to re-direct all packets going to your WAN port IP address to a particular 
IP address in your LAN. The difference between the virtual server and the DMZ 
function is that the virtual server re-directs a particular service/Internet application 
(e.g. FTP, websites) to a particular LAN client/server, whereas DMZ re-directs all 
packets (regardless of services) going to your WAN IP address to a particular LAN 
client/server. 

 

 

 

Parameters  

 

 

Description 

Enable 

You have to check this box to enable the DMZ 
function.

 

 

Note

: If there is a conflict between the Virtual 

Server and the DMZ setting, then Virtual Server 
function will have priority over the DMZ function. 

 
IP 

Input the IP address of a particular host in your 
LAN that will receive all the packets originally 
going to the WAN port 

  

Note:

 You need to give your LAN PC clients a 

fixed/static IP address for DMZ to work properly. 

 

Summary of Contents for DC-210

Page 1: ...1 DC 210 xDSL Broadband router ...

Page 2: ...DHCP Client 16 8 Wizard 17 9 Basic Settings 19 9 1 Host Name 19 9 2 Time 20 9 3 Password 21 9 4 LAN Settings 22 9 5 DHCP Mapping 24 10 Advanced Settings 25 10 1 Static Routing 25 10 2 UPnP 26 10 3 DDNS 27 11 Firewall 28 11 1 Hacker Prevention 28 11 2 Client Filtering 29 11 3 URL Filtering 31 11 4 MAC Filtering 32 11 5 DMZ 33 11 6 Virtual Server 34 12 Toolbox 36 12 1 Back up 36 12 2 Firmware Upgrad...

Page 3: ...e tomorrow s expansion and speed Minimum Requirements One External xDSL ADSL or Cable modem with an Ethernet port RJ 45 Network Interface Card NIC for each Personal Computer PC PCs with a Web Browser Internet Explorer 6 0 Firefox 3 x Package Content One 4 port Broadband router unit One Quick Installation Guide One User Manual CD One Power Adapter Accessories Note The WAN idle timeout auto disconne...

Page 4: ...WAN Connect the cable from you ADSL Cable modem to this port 2 5 LAN Connect the cable from your PC s or network devices to this port Reset Push this button for reset to factory default Power connector Connect the Power adapter to this port ...

Page 5: ...he backlabel describes the corresponding LED indications and port functionality LED Description POWER Lights up when powered ON Blinks on TEST RESET WAN Blinks on traffic LAN Blinks on traffic for specific LAN PORT ...

Page 6: ...6 3 Setup LAN and WAN WAN connection LAN connection ...

Page 7: ...7 4 PC Network Adapter setup Windows 2000 XP Enter Start Menu select Control panel select Network Select Local Area Connection icon select properties Select Internet Protocol TCP IP Click Properties ...

Page 8: ...ck the Windows Start button 2 Right click with the mouse on Network and select Properties 3 Click status of your network connection and select Properties in the new window 4 In User Account Control click continue 5 Click Internet Protocol Version 4 TCP IPv4 then click Properties 6 Select Obtain an IP address automatically 7 Click OK then close all windows and restart your PC ...

Page 9: ...our LAN 5 Bring up Connect the supplied power adapter to the power inlet port and connect it to a wall outlet The DC 210 automatically enters the self test phase During self test phase the Power LED will blink briefly and then will be lit continuously to indicate that this product is in normal operation ...

Page 10: ...10 6 Initial Setup 1 OPEN your browser i e Internet Explorer 2 Type http 192 168 0 1 in address bar and press Enter ...

Page 11: ...11 3 Type user name and password default is admin admin 4 Click OK ...

Page 12: ...r 2 to start configuring settings required by your ISP so that you can start accessing the Internet The other sections Basic Settings Advanced Settings Firewall and Toolbox do not need to be configured unless you wish to implement monitor more advance features information ...

Page 13: ...urrent firmware and hardware version numbers any illegal attempts to access your network and information on all DHCP client PCs currently connected to your network Parameters Description 7 1 System Status Shows the router s system information and other related information 7 2 Connection Shows the current connection information 7 3 Log View the Broadband router s system log 7 4 Clients View DHCP cl...

Page 14: ...14 7 2 Connection Status The Connection Status section allows you to monitor the current connection status of your router ...

Page 15: ...em log of the Broadband router At the bottom of the page the system log can be saved Save to a local file for further processing or the system log can be cleared Clear or it can be refreshed Refresh to get the most updated situation When the system is powered down the system log will disappear if not saved to a local file ...

Page 16: ...router s DHCP server Parameters Description Active DHCP Client This page shows all DHCP clients LAN PCs currently connected to your network The Active DHCP Client Table displays the IP address and the MAC address and Time Expired of each LAN Client Use the Refresh button to get the most updated situation ...

Page 17: ...ck Wizard to configure the router The Setup wizard will now be displayed check that the modem is connected and click Next Select your country from the Country list From Service select your internet provider Click Next ...

Page 18: ...ider you may need to enter your user name and password MAC address or hostname in the following window After you have entered the correct information click Next Wait for about 20 seconds to allow the router to connect to the Internet ...

Page 19: ...on from the LAN by typing the whole name you configured here except for the IP address Parameter Description Host Name Enter the Host Name of this router Click Apply at the bottom of the screen to save the above configurations You can now configure other advance sections or start using the router with the advance settings in place ...

Page 20: ...tion Enable Daylight Savings The router can also take Daylight savings into account If you wish to use this function you must check tick the enable box to enable your daylight saving configuration below Start from Select the period in which you wish to start daylight Savings Time End by Select the period in which you wish to end daylight Savings Time Click Apply at the bottom of the screen to save...

Page 21: ...ed host IP Address in the Host IP Address field Parameters Description New Password Enter your new password Re type Password Enter your new password again for verification purposes Note If you forget your password you ll have to reset the router to the factory default with the reset button see router s back panel Click the Enable box to enable the Remote Management function Click Apply at the bott...

Page 22: ...LAN port IP address Your LAN clients default gateway IP address Subnet Mask 255 255 255 0 The Subnet Mask for your LAN segment is fixed as 255 255 255 0 DHCP Server Enabled You can enable or disable the DHCP server By enabling the DHCP server the router will automatically give your LAN clients an IP address If the DHCP is not enabled then you ll have to manually set your LAN client s IP addresses ...

Page 23: ... attached PC s DHCP End Address 192 168 0 200 The last IP address the router will assign to attached PC s Click Apply at the bottom of the screen to save the above configurations You can now configure other advance sections or start using the router with the advance settings in place ...

Page 24: ...st get the same IP address every time Parameters Description Client MAC Address The MAC Address of the client Assigned Address The IP Address that will be assigned to the client Click Apply at the bottom of the screen to save the above configurations You can now configure other advance sections or start using the router with the advance settings in place ...

Page 25: ... destination address is a subnet set NET Destination LAN IP The network IP address of the destination LAN Subnet Mask The IP subnet mask of the destination LAN Gateway The IP address of the neighbor gateway in the path toward the destination LAN Click Apply at the bottom of the screen to save the above configurations You can now configure other advance sections or start using the router with the a...

Page 26: ...ters of UPnP Parameters Description Enable UPnP Check this box to enable the UPnP function Click Apply at the bottom of the screen to save the above configurations You can now configure other advance sections or start using the router with the advance settings in place ...

Page 27: ...able DDNS function Select Disable above the table to disable DDNS function Host Name Enter the host name of your server User Name Enter the user name of the account given by the DDNS service provider Password Enter the password of the account given by the DDNS service provider Click Apply at the bottom of the screen to save the above configurations You can now configure other advance sections or s...

Page 28: ...s box to discard PING packets come from the WAN side Drop Port Scan Packets Check this box to protect the router from Port Scan Allow to Scan Security Port Check this box to allow client scan security port 113 Discard NetBIOS Packets Check this box to discard NetBIOS packets from passing through this router Accept Fragment Packets Check this box to accept fragment packets Click Apply at the bottom...

Page 29: ...ces Parameters Description Enable Client Filter Check this box to enable Client Filtering function IP Enter the client IP range that you want to filter Port Enter the port range of services that you want to restrict the clients to access Type Select the protocol type of services that you want to restrict the clients to access Block Time Select Always if you want to block the clients from accessing...

Page 30: ...ou want to apply this rule Time Select the time period in a day you want to apply this rule Enable Check this box to enable this rule You can now configure other advance sections or start using the router with the advance settings in place ...

Page 31: ...ord of the Web site Parameters Description Enable URL Filtering Check this box to enable the URL Filtering function URL filtering string You can enter the full URL address or the keyword of the web site you want to block You can now configure other advance sections or start using the router with the advance settings in place ...

Page 32: ...32 11 4 MAC Filtering This router provides MAC Address Control which can prevent unauthorized MAC Addresses from accessing the internet ...

Page 33: ...articular service Internet application e g FTP websites to a particular LAN client server whereas DMZ re directs all packets regardless of services going to your WAN IP address to a particular LAN client server Parameters Description Enable You have to check this box to enable the DMZ function Note If there is a conflict between the Virtual Server and the DMZ setting then Virtual Server function w...

Page 34: ...N private IP address and its service port number Parameters Description Private IP This is the LAN client host IP address that the Public Port number packet will be sent to Note You need to give your LAN PC clients a fixed static IP address for Virtual Server to work properly Type Select the port number protocol type TCP or UDP Public Port Enter the service service Internet application port number...

Page 35: ...elow Public Port number will be changed to when the packet enters your LAN to the LAN Server Client IP Click Apply at the bottom of the screen to save the above configurations You can now configure other advance sections or start using the router with the advance settings in place ...

Page 36: ...save the configuration setting Backup you can re load the saved configuration into the router through the Restore selection If extreme problems occur you can use the Restore to Factory Defaults selection this will set all configurations to its original default settings e g when you first purchased the router Parameters Description Restore Y can use the Restore to Factory Defaults tool to force the...

Page 37: ...you need to download the firmware file to your local hard disk and enter that file name and path in the appropriate field on this page You can also use the Browse button to find the firmware file on your PC Once you ve selected the new firmware file click Apply at the bottom of the screen to start the upgrade process You may have to wait a few minutes for the upgrade to complete Once the upgrade i...

Page 38: ...nctioning or you modify the configuration you can perform a reset Your settings will not be changed To perform the reset click on the Reset button You will be asked to confirm your decision The reset will be complete when the power light stops blinking Once the reset process is complete you may start using the router again Note Every time when you finished configuration please reset the router to ...

Page 39: ...r PC s IP and MAC address 1 In Window s open the Command Prompt program 2 Type Ipconfig all and enter Your PC s IP address is the one entitled IP address 192 168 1 77 The router s IP address is the one entitled Default Gateway 192 168 1 254 ...

Page 40: ...40 Your PC s MAC Address is the one entitled Physical Address 00 50 FC FE 02 DB ...

Page 41: ...o 10 100 million bits per second Mbps Idle Timeout Idle Timeout is designed so that after there is no traffic to the Internet for a pre configured amount of time the connection will automatically be disconnected IP Address and Network Subnet Mask IP stands for Internet Protocol An IP address consists of a series of four numbers separated by periods that identifies a single unique Internet computer...

Page 42: ...interface It is comprised of two parts 3 bytes of data that corresponds to the Manufacturer ID unique for each manufacturer plus 3 bytes that are often used as the product s serial number NAT Network Address Translation This process allows all of the computers on your home network to use one IP address Using the broadband router s NAT capability you can access the Internet from any computer on you...

Page 43: ...ed only within a particular network as opposed to valid IP address numbers recognized by the Internet which must be assigned by InterNIC TCP IP UDP Transmission Control Protocol Internet Protocol TCP IP and Unreliable Datagram Protocol UDP TCP IP is the standard protocol for data transmission over the Internet Both TCP and UDP are transport layer protocol TCP performs proper error detection and er...

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