Jan 16, 2009
Welland, ON, Canada
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To forward all internet requests to a Web / Ftp / Email server, it is required to configure the DSL modem and router correctly. It relates to NAT (Network address translation) and port forwarding technology. A Westell 6100 DSL modem and a Netgear WGT624 V3 Router are used in the document for demonstration purpose (Figure 1).
Figure 1 Network Layout for in-house Web / Ftp / Email server
Change Router LAN IP setup
Both Westell 6100 DSL modem and Netgear WGT624 V3 Router have a default LAN IP address of 192.168.1.1. It is recommended to change one of the device IP address to 192.168.2.1. On this document, the Netgear WGT624 V3 Router address is changed to 192.168.2.1. (Figure 2)
After log on into the router control panel by typing 192.168.1.1, select "LAN IP Setup", and change the IP address to 192.168.2.1 (Figure 2.)
Figure 2 Change WGT624 V3 Router IP address to 192.168.2.1
Configure Westell DSL 6100 modem
Open a windows internet explorer, type 192.168.1.1 in the address bar.
Figure 3 IP address of Westell DSL 6100 modem
The connection overview window will display.
Figure 4 Connection Overview of DSL Modem
Under the configuration menu, there are following 11 configurations: VC configuration, DNS Configuration, DHCP Configuration, Private LAN Configuration, Public LAN Configuration, Detect WAN Configuration, Single Static IP Configuration, Service Configuration, Firewall Configuration, ATM Loopbacks, Turbo TCP, as shown in figure 5
Figure 5 List of Configuration Menu
Verify that all the 11 configurations are set up as following:
Figure 6 VC configuration
Figure 7 DNS configuration
Figure 8 DHCP Configuration
Figure 9 Private LAN Configuration
Figure 10 Public LAN Configuration
Figure 11 Detect WAN Configuration
On single static IP configuration please select "enable", after it is enabled, it reads as figure 12.
Figure 12 Single Static IP Configuration
Please make sure there are no other service enabled and no static NAT as shown in Figure 13.
Figure 13 Service Configuration
Select "None" on Firewall Configuration (Figure 14). 
Figure 14 Firewall Configuration
Figure 15 ATM Loopback
Figure 16 Turbo TCP
Configure Netgear WGT624 V3
3.1.Type 192.168.2.1 in the address bar to enter into Netgear server
Figure 17 IP address for Netgear WGT624 V3 Setting
3.2.Enter username and password to enter Netgear WGT624 V3 Configure Setting, as shown in figure 18.
Figure 18 Log into Netgear Setting
3.3.Click the "Port Forwarding/Port Triggering" at the setup wizard on left hand side, make sure the service type "Port Forwarding" is selected, then click "Add Custom Service", as shown in figure 19. 
Figure 19 Port Forwarding/Port Triggering
3.4.Add a Web server service per the following setting as shown in figure 20. Make sure port 80 is used for Web server, and server IP address set at 192.168.2.2, then click "Apply".
Figure 20 Add a new custom Service – Web server
3.5.Web server service port forwarding is setup, notice that the new service named "Web” is added to the service list, as shown in figure 21, item #3.
Figure 21 Web Server Port Forwarding
3.6. Follow the same procedure from step 3.3 to 3.5 for setting up FTP server and Email server. Please note that port # for FTP server and Email server are different then web server. Please refer to figure 1 for correct port selection.
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