How to Unblock TCP/UDP Ports
TCP and UDP are the main transport protocols used by applications to communicate on the Internet. The difference between the two lies in the fact that TCP is a connection-oriented service and takes care of handling errors and communication problems. UDP is a connectionless service. It is not certain that the data sent is delivered to the recipient. Modern routers implement a small module called NAT, which translates our devices’ outbound and inbound connections.
This phenomenon causes problems, especially for P2P programs that exploit parallel connections between multiple users to operate. So let’s see how to Unblock TCP/UDP ports. As we know, TCP/UDP ports are ports as far as networks are concerned, and they are 16-bit, which in total tend to be about 65,000 ports available.
Obviously, many ports are grouped precisely in these two words or TCP/UDP. So we can say that these names tend to indicate a number of lists that we have just mentioned above that serve precisely to indicate the networks’ ports. Let’s see below, once they are locked, how they can be unlocked in a few steps.
Simple Port Forwarding
One way to unblock the TCP and UDP ports is through the use of Simple Port Forwarding, which can be downloaded at the following link: http://www.simpleportforwarding.com/download Proceed with the installation of the program following the wizard and always clicking on the Next item and at the end on Finish.
Start the program, and as a first step, you need to change the software language: you can proceed from the drop-down menu at the bottom left. Within seconds, the interface will become understandable and easy to use.
As we know, this program is used to enter those doors or rather to enter the locked door and signal and identify the error to report it to the user. As a result, the user can start unlocking locked doors thanks to this program.
The parameters and values
In general, this software can set the parameters automatically, recognizing the values to be configured in a completely autonomous way. Looking at the box at the top left, you can check that your device’s model matches the one selected. At this point, you need to check the IP address of the router: to do this, start the command prompt and type the string IPConfig.
The Default Gateway field is visible under the Wireless LAN or Ethernet LAN item, where you can check the Username and Password for accessing the router. Obviously, this software can control precisely the values that tend to block the TCP/UDP ports. Consequently, once the anomaly has been identified, this program tends to enter values or rather parameters that are used precisely to unlock that same door.
The update
Next to the Update router button, located at the bottom right, click on the + button. This will allow you to define a program for which doors must be opened. From the new window, go to Add Staff and configure the parameters by entering the software’s name to be unlocked and the type of door.
On both fields, the value of the port in question will be visible. To confirm, click on Add. In the initial screen table, the program and the selected port will now be present. Now all that remains is to apply the changes and update the router. Once the software has entered the values and the new parameters inside the new locked door, we can update the router to see that same door unlocked again.
