Opening a port and sending the incoming messages to a specific device is called port forwarding. Find here how to forward ports.
What Is Port Forwarding?
The concept of port is used to refer to a communication endpoint in a network system. You can identify a port by 16-bit number and each is coded to indicate a specific action for a different network service. This port must always be associated with an IP address and a communication protocol. Each of the ports can send the data it needs to transmit over the network device called the router, which is responsible for transferring data packets between computer networks. In the last phase of a communication, the data between the network systems is transmitted from one port to another port. On a network system, if you want to route this data to another computer system, one must use port forwarding.
There may be different reasons for forwarding communication to another end. For example, there may be a firewall on the network, router, or proxy server. A firewall is a security system that arrives with predetermined rules and restrictions and makes the router available only to designated users. Another task is to monitor and control incoming and outgoing traffic on the network.
With regard to port forwarding, the host that records the IP packet must note the destination. Reads the title, then rewrites and redirects it to another computer. The second computer that receives the packet from the first computer may have a different IP address, but it may be the same port, a different port, or the same IP address. Perhaps it has a completely different IP address and a different combination of port numbers.
Port forwarding is an excellent way to protect the public addresses you use and to protect your servers and customers from unwanted access and to provide a more secure network. It is a protective layer of security for the network.
How to Forward Ports in 3 Steps
All traffic in a network goes through ports, each for a specific reason. Opening a port and choosing a gadget on the network to send approaching messages is called port sending. Here are the approaches to set up port sending:
Step 1: Assign a Static IP Address
It is possible to assign a fixed IP address to a computer on your local network. This way, you won’t have to change port forwarding every time you receive a new IP. You can open the properties of your association in the Network focus and set your static IP address.
Step 2: Setup Port Forwarding
After you configure the static IP address, you can also change the port forwarding settings on your router. However, you must be logged in to your router as an administrator and checked the port forwarding settings before this step. The Network tab can be under the wireless category or advanced categories. Once you find the Network tab, you must enter the number of the port you want to forward. You must fill the starting and ending boxes for port spaces. The next step is to select a protocol (TCP, UDP or both), then fill in the static IP address and turn on port forwarding. Routers usually have similar port forwarding methods, which are not very different, but you can also find specific instructions for the Mikrotik, Tplink, Netgear router, or Google wifi.
Step 3: Verify the Port
You should check the open ports: Even after the port forwarding has been established, the program may not be able to access the port due to the firewall blocking. For this reason, if the port is open, you should see the information in the online port checker tool. If not, we recommend that you change the status or reconfigure your settings by pointing to a different port.
When You Need to Set Up Port Forwarding
Every application on the Internet needs an open port for it to work properly. For example, a player playing an online game may need to make audio contact with other players, someone using a torrent may need open ports to upload files.
Therefore, if you are sure that your program on the Internet is installed correctly but cannot work, the required port on your router may be closed. If this happens, you must open the port on your router and perform port forwarding in order to correctly forward your service requests to the device.
VPN Port Forwarding
In the network structure called Virtual Private Networks, port forwarding techniques are also widely used to ensure that consumers do not interact with the Internet clearly. In VPN port forwarding, incoming connections bypass the NAT firewall, which significantly improves and speeds the connection speed. VPN port forwarding helps to increase internet speed and also gives you access to your device when you are not at home. You can choose to have two different ways, “Static” or “Dynamic” port forwarding. In a static system, you always have a specific port range, but if you prefer a dynamic system, the number of ports continues to vary.