Opening Ports for Synology DS109j using Your Router

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Port Forward Staff
July 22, 2021 (Last Updated: ) | Reading Time: 2 minutes

The ports that need to be forwarded for a Synology DS109j device are listed here:

Synology DS109j - PC

  • TCP: 20-22, 25, 80, 110-111, 137-139, 143, 443, 445, 548, 873, 892, 993, 995, 2049, 3260, 4672, 5000-5001, 5005-5006, 5432, 6881-6999, 7000-7001, 9997-9999, 55536-55663, 55736-55863
  • UDP: 25, 110-111, 137-139, 143, 445, 892, 993, 995, 2049, 4662, 4672, 5432, 6881-6999, 9997-9999

Setting Up a Port Forward for a Synology DS109j device

When you use a Synology DS109j device you might need to forward some ports in your router. Forwarding ports is used to allow incoming connection requests from the internet to a Synology DS109j 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:

Find the IP Address of Your Router

We have free Router Detector software to help you find your router's IP address. The software is part of our Network Utilities suite of tools and it is completely free to use.

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 Synology DS109j 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.

Another option is to go through the process of forwarding ports one step at a time. The step-by-step 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 Synology DS109j device:

List of Routers - Customized for Synology DS109j

Those are the steps to take in order to forward ports in your router for a Synology DS109j device.

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