The ports that need to be forwarded for Deathmatch Classic Server are listed here:
Deathmatch Classic Server - PC
- TCP: 27015
- UDP: 27015
Set Up a Port Forward for Deathmatch Classic Server

You might need to forward some ports in your router when you use Deathmatch Classic Server. Forwarding ports is used to allow incoming connection requests from the internet to Deathmatch Classic Server.
Routers generally do not allow incoming connection requests from the internet. By forwarding a port you can overcome this limitation.
Before Forwarding a Port Checkoff This To Do List
Before you can forward a port you need to know the following things:
- Your router's internal IP address.
- Your computer's internal IP address.
- The list of the TCP and UDP ports that you need to forward.
Locate Your Router's IP Address
The easiest way to locate your router's IP address is to run our free Router Detector utility. Our Router Detector tool is free to use and is part of our Network Utilities software.
You can also follow our Find Your Router IP Address article.
How To Set Up Port Forwarding for Deathmatch Classic Server
You can use our Network Utilities software to automatically forward ports for you. 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.
Port forwarding can also be set up step-by-step by hand. The way to forward a port is:
- Log in to your router.
- Locate your routers port forwarding section.
- Type your computer's IP address into the correct box in your router.
- Enter the TCP and UDP ports that you need to forward for Deathmatch Classic Server in the corresponding boxes in your router.
Some routers need to be rebooted in order for the changes to be saved.
You can choose your router from our list to see exactly how to forward ports for Deathmatch Classic Server:
List of Routers - Customized for Deathmatch Classic Server
That's all it takes to forward your ports for Deathmatch Classic Server.