Knowledgebase
Setting up Port Redirection using WAN IP Alias
Posted by on 25 January 2012 09:41 AM

This example uses the Vigor2910 series router.

Two public IP addresses will be entered to the WAN IP alias and then use Port Redirection to map these to the internal web servers that have a private IP address.

IP addresses assigned by the ISP are:       203.36.213.121

                                      203.36.213.122

We will redirect 203.36.213.121 to our web server (192.168.1.20)

 

Step 1: Enter Public IP addresses

Go to WAN>>Internet Access configuration menu.

Click on WAN IP Alias radio button

Enter the assigned public IP addresses as shown in the diagram below

 

http://www.draycare.com.au/dfaq/image/Network_Address_Translation/05/nat_18.JPG

Step 2: Configure Port Redirection

Go to NAT>>Port Redirection and click on the first available index.

In the next menu that appears enter the required details.

In the WAN IP pull down list select the required WAN IP Alias address. Here we have selected 203.36.213.121 as shown in the diagram below:

 

http://www.draycare.com.au/dfaq/image/Network_Address_Translation/05/nat_19.JPG

Now we can access the internal web server 192.168.1.20 from the Internet by using the IP address 203.36.213.121.

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