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The relationship between Port forwarding and VPN

author

Brady Yonng

Jul 19, 2023 | 5 min read
  • VPN

 

 Contents

 

What is Port Forwarding?

How does Port Forwarding work?

The Relationship between Port Forwarding and VPN

Why Choose MetroVPN?

 

What is Port Forwarding?

 

Port forwarding is a networking technique that allows you to forward data packets from one network device to a specific port on another network device. This enables external networks to access certain services or applications within your internal network, such as game servers, remote desktops, and network cameras.

 

The principle behind port forwarding involves setting up a rule on your router that specifies which external port corresponds to which internal device and port. For example, you can set up the router to forward external port 8080 to port 80 on your computer. As a result, when someone accesses your public IP address and port 8080, it is equivalent to accessing port 80 on your computer, where your website service may be running.

 

How does Port Forwarding work?

 

The workflow of port forwarding is as follows:

① The first step

When someone from an external network sends data packets to your public IP address and the specified port, the router will forward the packets to the corresponding device and port within your internal network, based on the rules you've set up.

② The second step

Once the internal device receives the data packets, it processes or responds to them according to the packet's content and sends back the response packets to the router.

③ The third step

The router then forwards the response packets back to the original sender in the external network, completing the communication.

 

The Relationship between Port Forwarding and VPN

 

A VPN (Virtual Private Network) is a technology that establishes a secure and private connection within a public network through encryption and tunneling. When using a VPN, your network traffic is encrypted and transmitted through a remote server, hiding your real IP address and geographical location, thus enhancing your privacy and security.

 

Port Forwarding and VPN are related in the following ways:

① Some VPN services offer port forwarding functionality.

Allowing you to access certain services or applications within your internal network while using the VPN. This is useful for scenarios that require P2P connections or high-speed downloads, such as online gaming, torrent downloads, video conferencing, etc.

② Some VPN services do not support or disable port forwarding.

Preventing you from accessing any services or applications within your internal network while using the VPN. This is beneficial for scenarios that demand high privacy and security, such as anonymous browsing, anti-censorship, anti-tracking, etc.

③ Some VPN services allow you to choose whether to enable or disable port forwarding

Providing flexibility to adjust the VPN's performance and security according to your needs and preferences.

 

Why Choose MetroVPN?

 

MetroVPN is an excellent VPN service that offers several advantages:

① Global servers

With a network of 6500+ servers worldwide, MetroVPN allows you to connect to any country or region at any time. Whether you want to bypass geo-restrictions or enjoy faster network speeds, MetroVPN provides the best connection options for you.

② Encrypts network activity

MetroVPN ensures that all your internet traffic is encrypted, providing a secure and private connection while browsing the web.

③ Strict no-logs policy

MetroVPN follows a stringent no-logs policy, meaning it doesn't track or store any of your online activities, ensuring your data remains confidential.

④ 24/7 customer support

MetroVPN offers round-the-clock customer support, ensuring assistance is available whenever you need help or have questions.

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