Use TcpListener : TcpListener « Socket Network « VB.Net Tutorial

1. VB.Net Tutorial
2. Socket Network
3. TcpListener

Imports System.Net.Sockets
Imports System.Net
Imports System.Threading
Imports System.Text

Public Class Tester
    
    Dim Shared myTcpListener As TcpListener
    
    Public Shared Sub Main
        Dim myThread As New Thread(New ThreadStart(AddressOf StartListen))
        myThread.Start()

    End Sub

    Private Shared Sub StartListen()
        myTcpListener = New TcpListener(12334)

        Dim blnConection As Boolean = False

        Try
            myTcpListener.Start()
            Dim mySocket As Socket = myTcpListener.AcceptSocket()

            Do
                If mySocket.Connected = True Then blnConection = True

            Loop Until blnConection = True
            myTcpListener.Stop()

        Catch ex As SocketException
            Console.WriteLine(ex.Message)
        End Try
    End Sub
End Class