Ping请求期间发生异常 [英] An exception occurred during a Ping request

问题描述

当我尝试通过主机名ping我的客户端计算机时出现以下错误
-在Ping请求期间发生异常.主机名是:"xyzMicrosoft">
当我尝试通过ipaddress对其客户端计算机执行ping操作时，

I am getting the following error when i am trying to ping my client machine by hostname
--An exception occurred during a Ping request. HostName is : "xyzMicrosoft">
when i try with to ping the client machine by ipaddress its working fine

Dim oPing As New Net.NetworkInformation.Ping
      Dim myResponse As Net.NetworkInformation.PingReply
      Try
          myResponse = oPing.Send(Destination, 5) 'Waits for 5sec to check the given server is online or offline
          If myResponse.Status = NetworkInformation.IPStatus.Success Then
              Return True
          Else
              Return False
          End If
      Catch ex As Exception
          logger.Dailylogs(String.Format("PingIPAddress : {0} HostName is : {1} ", ex.Message, Destination))
          Return False
      End Try

谁能帮忙找出如何使用主机名对计算机执行ping操作

在此先感谢
Bhargav

Can any one help to find out How to ping the machine with Hostname

Thanks in advance
Bhargav

推荐答案

显而易见的问题是:-

1.您得到的例外是什么，有 5个文档 [
另一个观察结果是，超时以毫秒为单位，而不是以秒为单位，因此您只需要等待5毫秒(这对于同一子网中的计算机应该没问题)

The obvious questions are :-

1. What is the exception you get back, there are 5 documented[^]
2. Does ''xyzMicrosoft'' resolve through DNS?

An additional observation, is that the timeout is in milliseconds, not seconds, so you''re only waiting for 5ms (which should be fine for a machine on the same subnet)

做的应该很好，但是尝试在ping中添加更多细节.

What you have done should be fine however try adding a bit more detail to the ping.

Dim options As New PingOptions()

			' Use the default Ttl value which is 128,
			' but change the fragmentation behavior.
			options.DontFragment = True

			' Create a buffer of 32 bytes of data to be transmitted.
			Dim data As String = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
			Dim buffer() As Byte = Encoding.ASCII.GetBytes (data)
			Dim timeout As Integer = 120
			Dim reply As PingReply = pingSender.Send (args(0), timeout, buffer, options)

这是从 http://msdn.microsoft.com/en-us/library/system.net.networkinformation.ping.aspx [

this was taken from http://msdn.microsoft.com/en-us/library/system.net.networkinformation.ping.aspx[^]

Also in the exception, try catching the PingException first as this may yield more detail about the exception.

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