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Port Forwarding in Nokia Siemens Residential Router

Nokia Siemens Residential Router provides inbuilt firewall protection from external intruders. It is good for the security of your home network but sometimes this may pose some issues. Certain network applications which work through specific ports may be blocked by this firewall. Default router firewall settings block all the communications though uncommon port numbers due to security precautions. So in order to ensure the smooth working of those devices and applications you need to forward  specific port numbers (though which the applications work) in your router. This article is specifically for Nokia Siemens Residential Router. Before proceeding to the steps you should ensure that you have the port numbers of the applications and the IP address of the computer in which the application runs.

Port Forwarding in Nokia Siemens Residential Router
  1. Type on address bar of browser
  2. Enter Router setup page by providing user name and password.
    User Name: admin
    Password : admin
  3. Click on Advanced Setup
    Port forwarding in  Siemens Residential Router 1600
  4. Click on NAT (in Some versions Port mapping) and select virtual servers to start Port forward.
    How to perform port forwarding in Nokia Siemens router

    1. Select Custom Servers and enter the name of the application or device for which you are performing port forwarding in Nokia Siemens Residential Router.
    2. Enter the IP address of the computer in which device connected
    3. Add the Port numbers in the respective fields

    PS: Depends on different firmware versions you may see the port forwarding option under different heading. So I recommend you to check under other tabs too if you failed to find port forwarding option as I showed here.
  5. Click on Save

What if Port Forwarding Doesn't Work
May be due to some strange reasons port forwarding in Nokia Siemens Residential Router may not work. In that case you can use the option DMZ for the device connected to Nokia Siemens router. To do this follow the steps below.

  1. Log into Nokia Siemens Residential Router
  2. click on Advanced Setup
  3. Click on NAT (In some versions this option is under security)
  4. Select DMZ host.
    Now enter the IP address of the device or computer which you want to avoid all default router firewall restrictions.

PS: It is important to remember that while enabling DMZ, you are lifting entire router firewall protection.
To learn how to configure Nokia Siemens Residential Router with your ISP click on the link below.
How to Setup Nokia Siemens Residential Router

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