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Port Forwarding Rust: How to Open Ports in 2025

  • By Farrukh Mushtaq

    Farrukh Mushtaq

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    Farrukh Mushtaq, a digital marketer at PureSquare, possesses a keen interest in cybersecurity and enjoys writing about it. With several years of experience in the digital marketing industry, he brings expertise and passion to his work.

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  • 21 January 2025
  • 4 mins read

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Rust is a multiplayer survival game where network concerns like excessive latency can affect gameplay. By port forwarding Rust, you can connect to Rust servers directly and enjoy seamless gaming. This comprehensive guide also explains how to open ports on routers behind CGNAT with a few easy steps.

What is Port Forwarding? 

Port forwarding is a networking method to redirect incoming internet traffic to a specific device or application on your local network. 

Before You Forward a Port 

You need to know the following before opening ports for any game and application: 

  • The IP address of your router 
  • The IP address of your device (computer or console)
  • Port numbers (UDP and TCP)

Default Ports for Rust

To successfully forward ports for Rust, you need to know the default ports used by the game:

  • TCP: 27015, 27036, 28016, 28083
  • UDP: 27015, 27031-27036, 28015

How to Port Forward Rust 

Follow these steps to configure port forwarding for Rust on your router:

  1. Open your favorite web browser and type your router’s IP address in the address bar.
  2. Log in using your router's admin username and password.
  3. Find the section called "Port Forwarding" in the router settings.
  4. Type in the IP address of your gaming console in the appropriate field.
  5. Add the TCP and UDP port numbers for the game Rust in the provided boxes.
  6. When you're finished, restart your router.

Why Opening Ports Behind CGNAT is an Issue? 

Carrier-Grade NAT (CGNAT) is a technique ISPs use to save IPv4 addresses by sharing one public IP among multiple users who are relying on the same network. But it complicates port forwarding for gamers, and your IP address can get blacklisted if you try to open ports behind CGNAT. 

How to Open Ports on Routers Behind CGNAT

With PureVPN’s Port Forwarding add-on and a dedicated IP, you can easily bypass CGNAT and port forward multiple routers (Starlink, Cox, Spectrum) for games like Call of Duty: Warzone, Fortnite, Apex Legends, and Counter-Strike: Global Offensive. 

  1. Login to the PureVPN member area.
  2. Click the subscription tab.
  3. Click Configure.
  4. Apply your desired port settings.
  5. Click Apply settings.
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Frequently Asked Questions (FAQs)

  • What happens if I forward the wrong ports?

    Plus

    The game might not connect properly, or it could expose your network to security risks.

  • Is port forwarding safe for Rust?

    Plus

    No. Port forwarding opens a direct route for cybercriminals to access your device. However, with a VPN, you can securely port forward Rust.

  • Can multiple devices play Rust with port forwarding on the same network?

    Plus

    Not easily, as each device would need separate ports, which could conflict.

  • How do I access my router to set up port forwarding?

    Plus

    Type your router’s IP address in a web browser and log in with admin credentials.

In Summary

Play high-intensity, MMO games like Rust without interruptions. Get PureVPN port forwarding add-on and dedicated IP to connect to external game servers, maintain stable connections, and port forward routers behind CGNAT. 

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