How to Port Forward Total
PUREVPNpfcgnatHow to Port Forward Dicom

Digital Imaging and Communications in Medicine (DICOM) is the standard for transmitting, storing, retrieving, printing, processing, and displaying medical imaging information. If you are looking to port forward DICOM, this guide can help you.

Port forwarding is used to allow remote access to a computer or device that is behind a firewall or router. When port forwarding is configured correctly, the firewall will know to allow incoming traffic on the specified port and forward it to the correct computer or device on the network.

Requirements to Port Forward Dicom

Just before you begin with the process of port forwarding, make sure you have the following things:

  • Downloaded and installed the Dicom server.
  • The IP address of your router.
  • IP address of your device.

TCP and UDP ports of Dicom are mentioned in the section below.

Step-by-step guide on how to port forward Dicom

Now that you have the above details noted down, you can move to the next stage of Dicom port forwarding:

  1. On your web browser address bar, type your router’s IP Address/Default Gateway.
  2. Log in with your router’s credentials (username and password) to view your router’s firmware settings.
  3. Navigate to the port forwarding section of your router.
  4. Click on Port Forwarding.
  5. Enter the IP address of your device in your router in the correct box.
  6. Put the TCP and UDP ports of the Dicom server in the boxes in your router. The default Dicom port number is 11112. And then click the apply button.
  7. And you’re done. Restart your router to let the changes take effect.
  8. Once your changes take effect, now you can host a Dicom server and let your friends connect to it as well. To let them connect to it, you need to provide them the hostname you are using, along with the port number. For example, ‘’.

Dicom ports needed to run

The default Dicom ports are:

TCP Port:11112
UDP Port:11112

Quickly and safely open ports using PureVPN

Opening a port shouldn’t be complicated. With the Port Forwarding add-on, it’s as simple as 1, 2, and 3!

Ports to forward on devices

Ports to run on PC:

TCP Port:11112
UDP Port:11112

How to open ports behind CGNAT

What if your ISP performs CGNAT? Most ISPs perform CGNAT (Carrier-grade Network Address Translation) to conserve bandwidth and assign a single IP address to multiple users connected to the same internet network. However, CGNAT makes it difficult for you to open ports on the router. 

To get around the CGNAT issue, you can use the Port Forwarding add-on to bypass this problem and port forward routers without hassle. 
Here’s more information on how to use PureVPN’s Port Forwarding add-on and bypass CGNAT in a few clicks.

Open Ports Behind CGNAT

PureVPN’s Port Forwarding Add-on

A secure way to open all ports

To most people, port forwarding is quite a demanding task. For starters, every router has a different console, which often makes it difficult to navigate to specific settings.

Secondly, you won’t always be able to open Dicom Online ports on your router if your ISP restricts the ports. Yes, you heard that right! ISPs are notorious for blocking ports due to security reasons. If ISP isn’t the reason behind a blocked port, then perhaps it could be your operating system’s firewall.

Well, you can eliminate all these problems with PureVPN’s Port Forwarding add-on. Through the Port Forwarding add-on, you can allow all ports, disallow all ports, and allow specific ports.


What information is required when configuring a DICOM server?

The DICOM server requires the IP number or hostname of the computer it is running on and the port number it is listening to. The server will also need an Application Entity Title (AET).


DICOM uses TCP (transmission control protocol) instead of the common UDP (user datagram protocol), and while it is widely successful, there are some inherent limitations to using TCP.

How are DICOM images stored?

DICOM files have a header and image data sets stored as one file. The header has standardized tags with crucial information like patient demographics and study parameters.

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