Forward Ports on Your Router for ZyXEL NSA221

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Port Forward Staff
July 22, 2021 (Last Updated: ) | Reading Time: 1 minutes

The ports that need to be forwarded for a ZyXEL NSA221 device are listed here:


  • TCP: 21, 80, 445, 3999, 8082, 9090
  • UDP: 21, 80, 445, 3999, 8082, 9090

Forward Ports for a ZyXEL NSA221 device

You might need to forward some ports in your router when you use a ZyXEL NSA221 device. Forwarding ports is used to allow incoming connection requests from the internet to a ZyXEL NSA221 device.

By default routers do not allow incoming network requests. A port forward can overcome this limitation.

Before You Forward a Port

You need to know the following things before you can forward a port:

Locate Your Router's IP Address

To find your router's IP address the easy way you can use our free Router Detector software. It is part of our Network Utilities suite of tools and is free for you to use it.

If you do not want to run the software, you can follow our Find Your Router IP Address guide.

How To Forward Ports for a ZyXEL NSA221 device

We have Network Utilities software that can forward ports for you. Our Network Utilities software allows you to add port forwards and also remove them when you no longer need them to maximize your network security.

You can also choose to set up port forwards manually. The normal process for forwarding a port is:

Usually you have to reboot your router in order to save the changes.

You can choose your router from our list to see exactly how to forward ports for a ZyXEL NSA221 device:

List of Routers - Customized for ZyXEL NSA221

That is the process required to forward ports in your router for a ZyXEL NSA221 device.

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