Implementing UDP Through C# Last Updated : 28 Apr, 2025 Comments Improve Suggest changes Like Article Like Report UDP stands for User Datagram Protocol. It is a connectionless protocol. When you send data or message, you don't know if it will get there, it could get lost on the way. There may be corruption while transferring a message. UDP does not use streaming and it uses datagrams instead of streams. It is light weighted. There is No ordering of messages It's just like fire(send) and forgets! This means it is a lot faster, UDP does not provide a guarantee it will be delivered or not or also cannon tracked once fired. UDP is an alternative Protocol to Transmission Control Protocol (TCP). UDP is commonly used for applications that can handle some packet loss. such as streaming audio and video. Here we see the implementation of UDP using C#. C# // Server-Side Implementation Of UDP: using System; using System.Net; using System.Net.Sockets; using System.Text; using System.Configuration; class StudentUDPServer { public static void Main() { UdpClient udpc = new UdpClient(7878); Console.WriteLine("Server Started, servicing on port no. 7878"); IPEndPoint ep = null; while (true){ // Store received data from client byte[] receivedData = udpc.Receive(ref ep); string studentName = Encoding.ASCII.GetString(receivedData); string msg = ConfigurationSettings.AppSettings[studentName]; if (msg == null) msg = "No such Student available for conversation"; byte[] sdata = Encoding.ASCII.GetBytes(msg); udpc.Send(sdata, sdata.Length, ep); } } } // Client-Side Implementation Of UDP: using System; using System.Net; using System.Net.Sockets; using System.Text; class StudentUDPClient { public static void Main(string[] args) { UdpClient udpc = new UdpClient("PC_NAME", 7878); IPEndPoint ep = null; while (true) { Console.Write("Enter Your Name: "); string studentName = Console.ReadLine(); // Check weather student entered name to start conversation if (studentName == ""){ Console.Write("You did not enter your name. Closing..."); break; } // Data to send byte[] msg = Encoding.ASCII.GetBytes(studentName); udpc.Send(msg, msg.Length); // received Data byte[] rdata = udpc.Receive(ref ep); string job = Encoding.ASCII.GetString(rdata); Console.WriteLine(job); } } } Output: Comment More infoAdvertise with us Next Article C# Program to Implement Multiple Interfaces in the Same Class A aadityapburujwale Follow Improve Article Tags : C# CSharp-programs Similar Reads C# Program to Implement the Same Method in Multiple Classes C# is a general-purpose programming language it is used to create mobile apps, desktop apps, websites, and games. In C#, an object is a real-world entity. Or in other words, an object is a runtime entity that is created at runtime. It is an instance of a class. In this article, Implement the same me 3 min read Demonstrating Transactions Using Interface Through C# The interface is a special class in which we can declare all of our methods. Here in this problem, we are going to create an interface in which we are going to declare all of the required implementations which is necessary for transaction management. Here in this article, we are going to see how rea 2 min read Introduction to C# C# (C-sharp) is a modern, object-oriented programming language developed by Microsoft as part of the .NET framework. It was first released in 2000 and it has become one of the most widely used languages for building Windows applications, web services, and more. C# combines the power of C and C++ wit 7 min read C# Program to Implement Multiple Interfaces in the Same Class Like a class, Interface can have methods, properties, events, and indexers as its members. But interface will contain only the declaration of the members. The implementation of interface’s members will be given by the class that implements the interface implicitly or explicitly. C# allows that a sin 3 min read C# - IDumpable Interface In this article, we will see how to implement IDumpable interface through C#. The IDumpable interface is just a simple interface which has a Dump() method and public property. Every class that wishes to implement the IDumpable interface has to implement the Dump() method and can make use of the publ 7 min read How to Implement Generic Singly LinkedList in C#? Linked List linear collection of objects called nodes that are stored in the memory at random addresses. The first node is a special node named Head which stores the address of the first element. In the last node of the linked list, the node may point at null or another special node named Tail. Lin 8 min read Like