When you use a Synology CS-406e device you may need to forward ports in your router. By forwarding ports you allow connection requests coming from the internet to be directed to a Synology CS-406e device.
By default routers do not allow incoming network requests. Forwarding ports can work around this limitation.
Before Forwarding a Port
You need to know the following things before you can forward a port:
- The internal IP address of your router.
- The IP address of your NAS.
- Each of the TCP and UDP ports that you need to forward.
Use a VPN Instead
Have you considered using a VPN instead of forwarding a port? For most users, a VPN is a much simpler and more secure choice than forwarding a port.
We use and recommend NordVPN because not only is it the fastest VPN, it includes a new feature called Meshnet that makes forwarding a port no longer necessary for most applications. With NordVPN Meshnet, you can connect to your devices from anywhere in the world, completely secure, over a highly encrypted VPN tunnel.
When shopping for a VPN, make sure that they meet the following criteria:
- Your VPN provider should have a no-logs policy. This means that they do not keep any logs of any kind.
- Make sure that your VPN provider has lots of exit nodes all around the world.
- Check that your VPN will not affect your speed.
- Verify that your VPN provider uses WireGuard as the underlying protocol.
- Many people prefer a VPN provider that is not based in the United States.
This is the list of requirements that we used when we were shopping around for a VPN provider. There are lots of free, shady VPN providers out there that we looked at and dismissed.
Based in Panama, using diskless servers, and with over 6,100 servers in 61 countries, we can safely say that NordVPN satisfies all of these requirements.
Once you've set up your NordVPN account on multiple computers and enabled Meshnet, you can seamlessly access all of your devices as if they were on the same network. You don't even have to log in to your router. It's very simple.
Every time you click on one of our affiliate links, such as NordVPN, we get a little kickback for introducing you to the service. Think of us as your VPN wingman.
How to Locate Your Router's IP Address
We have free Router Detector software to help you find your router's IP address. It is part of our Network Utilities suite of tools and is free for you to use it.
We have a guide you can follow Find Your Router IP Address if you don't want to run the software.
Setting Up a Port Forward for a Synology CS-406e 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 process for forwarding a port is:
- Begin by logging in to your router.
- Locate your routers port forwarding section.
- Put your NAS's IP address in the proper box in your router.
- Put the TCP and UDP ports that you are forwarding for a Synology CS-406e device in the correct boxes in your router.
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 CS-406e device:
List of Routers - Customized for Synology CS-406e
Forwarding Ports for a Synology CS-406e device
The ports that need to be forwarded for a Synology CS-406e device are listed here:
Synology CS-406e - 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
Those are the steps for forwarding ports in your router for a Synology CS-406e device.
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