Day of Defeat Source is a first person shooter game designed with Valve’s Source game engine. You get to play as a sniper, infantry, or machine-gunner.

To get the best online gaming performance on Day of Defeat Source, you will first need to download the application on your preferred platform. You will then need to set the TCP and UDP ports in the program.

Requirements to Port Forward Day of Defeat Source

Before you begin the process of port forwarding, make sure you have the following things:

• Downloaded and installed Day of Defeat Source software package here.
• The IP address of your router.
• IP address of your device.
• TCP and UDP ports of Day of Defeat Source for your gaming rig. Both of them can be defined by the users in the app.

Step Guide

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

• On your web browser address bar, type your router’s IP Address/Default Gateway.
• Log in with your router’s credentials (username and password) to view your router’s firmware settings.
• Navigate to the port forwarding section of your router.
• Click on Port Forwarding.
• Enter the IP address of the computer you use Day of Defeat Source from in your router in the correct box.
• Put the TCP and UDP ports of Day of Defeat Source in the boxes in your router. The TCP port should be 27015, 27036 and the UDP field should be 27015, 27020, 27031-27036. And then click the apply button.
• And you’re done. Restart your router to let the changes take effect.

Day of Defeat Source ports needed to run the game

To get the best speeds with Day of Defeat Source online, you’ll have to allow access to certain ports on your firewall. The default Day of Defeat Source ports are:

TCP Port:	27015, 27036
UDP Port:	27015, 27020, 27031-27036

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 Windows/PC:

TCP Port:	27015, 27036
UDP Port:	27015, 27020, 27031-27036

Ports to run on Mac/MacOS:

TCP Port:	27015, 27036
UDP Port:	27015, 27020, 27031-27036

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.

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 Day of Defeat Source 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 make all these problems go away and enjoy smooth online gaming on all your desired systems 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.

Avoid limited downloading and uploading speeds on Day of Defeat Source with PureVPN’s Port Forwarding add-on.

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