Forward Ports on Your Router for Synology RS409

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

The incoming ports that need to be forwarded for a Synology RS409 device are:

Synology RS409 - 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

Set Up a Port Forward for a Synology RS409 device

When you use a Synology RS409 device you may need to forward ports in your router. Forwarding ports is used to allow incoming connection requests from the internet to a Synology RS409 device.

Routers do not generally allow incoming connection requests from the internet. By forwarding ports you can work around this limitation.

Remember to Do These Things Before You Forward a Port

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

How to Locate Your Router's IP Address

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

We have a guide you can follow Find Your Router IP Address if you don't want to run the software.

Forwarding a Port for a Synology RS409 device

The easiest way to forward your ports is to use our Network Utilities software. Network Utilities lets you manage port forwards by putting them in when you need them and also removing the ones that you no longer need which maximized network security.

Alternatively you can do it by hand. The process for forwarding a port is:

Frequently you have to reboot your router for the changes to take effect.

You can choose your router from our list to see exactly how to forward ports for a Synology RS409 device:

List of Routers - Customized for Synology RS409

Those are the steps to take in order to forward ports in your router for a Synology RS409 device.

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