在这种情况下使用哪个端口？ [英] Which port to use for this situation?

问题描述

人们



我知道我之前发过类似的东西，但这是一个完全不同的问题。



问题是，使用以下代码，端口54545不起作用。该代码旨在通过端口变量将消息发送到IP地址。

我希望代码能够，例如，向您发送消息，读取此消息，如果您有接收器程序（必须在世界上任何地方，只要你有网络连接）

Hi people

I know i''ve posted something similar to this before, but it''s a completely different question.

The problem is, that with the following code, port 54545 does not work. The code is intended to send a message via the port variable to the IP address.
I want the code to be able to, for example, send a message to you, the one reading this, if you have the receiver program (which has to be anywhere in the world, providing you have a network connection)

Imports System.Net
Imports System.Net.Sockets
Imports System.Threading
Imports System.Text
Public Class Form1
    Private Const port As Integer = 54545
    Dim RecipientIPAddress As String = Nothing '255.255.255.255 for local network
    Private sendingClient As UdpClient
    Private Sub SendMsgButton_Click() Handles SendMsgButton.Click
        RecipientIPAddress = IPToSendToTextbox.text 'for example, 192.168.1.99
        InitializeSender()
    End Sub
    Private Sub InitializeSender()
        sendingClient = New UdpClient(RecipientIPAddress, port)
        sendingClient.EnableBroadcast = True
    End Sub
    Public toSend As String
    Dim data() As Byte
    Public Shared Sub go()
        form1.data = Encoding.ASCII.GetBytes(form1.toSend)
        form1.sendingClient.Send(form1.data, form1.data.Length)
    End Sub
   end class

我对这个问题了解的事情：



* UDPClient端口范围从5454 [2-5]

*端口80无法工作



有没有人知道一个适用于此的端口号？



谢谢。

Things I know about the problem:

* UDPClient Ports range from 5454[2-5]
* Port 80 doesn''t work

Does anyone know a port number that will work for this?

Thanks.

推荐答案

任何未使用的端口号都可以使用，您的问题可能是阻止流量的防火墙。

Any port number not in use should work, your problem might be a firewall blocking the traffic.

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