**This is my server code**

```
byte[] data = new byte[1024];
IPEndPoint ipep = new IPEndPoint(IPAddress.Any, 9050);
UdpClient newsock = new UdpClient(ipep);

Console.WriteLine("Waiting for a client...");

IPEndPoint send = new IPEndPoint(IPAddress.Any, 0);

byte[] data1 = newsock.Receive(ref send);
int test1 = BitConverter.ToInt32(data1, 0);
Console.WriteLine("test1 = {0}", test1);

```

**This is my client code**

```
byte[] data = new byte[1024];
string stringData;
UdpClient server = new UdpClient("127.0.0.1", 9050);

IPEndPoint send = new IPEndPoint(IPAddress.Any, 0);

int test1 = 45;

byte[] data1 = BitConverter.GetBytes(test1);
server.Send(data1, data1.Length);

```

According to my client and server, 
The client is the one sending data to server.

But my requirement is other way around! and im unable to do that..
When i try adding this code to the server

```
byte[] buffer = ASCIIEncoding.ASCII.GetBytes("Hello Client");
newsock.Send(buffer, buffer.Length);

```

I get an Exception as `The operation is not allowed on non-connected sockets.` 

Can some one help me?