Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

VB.net Ping class

Posted on 2010-09-06
8
Medium Priority
?
603 Views
Last Modified: 2012-05-10
Hi,
Can i please have some help with regards to ping a ip address or host name for example 10.0.0.1 or www.microsoft.com?
I need to create a simple class that i can pass it an ip address and it then returns the result. I would like to then thread it so i can do multiple pings. I am not to sure wha tthe difference is between using ping in asyncronous or syncronous

thanks
0
Comment
Question by:CraigLazar
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
8 Comments
 
LVL 23

Accepted Solution

by:
Kamaraj Subramanian earned 800 total points
ID: 33612366
0
 
LVL 23

Expert Comment

by:Kamaraj Subramanian
ID: 33612371
0
 
LVL 4

Author Comment

by:CraigLazar
ID: 33612458
Hi,
thanks for the links, i have already tried those but battling to get them to work.
in vb.net
0
Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 
LVL 4

Author Comment

by:CraigLazar
ID: 33612499
this is what i have at the moment, which is returning a time out  for reply object
Button on a form

Dim meas As New PingExample
Dim xme(2) As String
xme(0) = "www.microsoft.com
xme(1) = "www.google.com
PingExample.Main(xme)
 
Class

Public Class PingExample
' args[0] can be an IPaddress or host name.
Public Shared Sub Main(ByVal args As String())
Dim pingSender As New 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)
If reply.Status = IPStatus.Success Then
Console.WriteLine("Address: {0}", reply.Address.ToString())
Console.WriteLine("RoundTrip time: {0}", reply.RoundtripTime)
Console.WriteLine("Time to live: {0}", reply.Options.Ttl)
Console.WriteLine("Don't fragment: {0}", reply.Options.DontFragment)
Console.WriteLine("Buffer size: {0}", reply.Buffer.Length)
End If
End Sub
End Class
0
 
LVL 11

Assisted Solution

by:lenordiste
lenordiste earned 800 total points
ID: 33613491
everything is fine with your code, it's just that your test data is not: "www.microsoft.com" does not reply to the ping.

"www.google.com" does however so you can test this one:
PingExample.Main("www.google.com")
0
 
LVL 8

Expert Comment

by:PagodNaUtak
ID: 33614360
Here is my ping function.
Have a try...

 Public Function PingRemoteHost(ByVal HostAddress As String, Byval Arguments) As String
        Dim PingReply As String = String.Empty
        Using pingProcess As New Process
            Dim startInfo As New ProcessStartInfo("ping")
            startInfo.RedirectStandardInput = True
            startInfo.RedirectStandardOutput = True
            startInfo.UseShellExecute = False
            startInfo.CreateNoWindow = True
            startInfo.WindowStyle = ProcessWindowStyle.Hidden
            startInfo.Arguments = HostAddress & " " & Arguments

            pingProcess.StartInfo = startInfo
            pingProcess.Start()

            PingReply = pingProcess.StandardOutput.ReadToEnd

            pingProcess.WaitForExit()
            pingProcess.Close()

        End Using
        Return PingReply
End Function

Open in new window

0
 
LVL 41

Expert Comment

by:graye
ID: 33617552
Hang on... I think lenordiste has nailed it....  The microsoft web site (and countless many others) filter ping requests at the firewall.   So, there's nothing wrong with your code.
...uh well, perhaps other than the fact you pass an array and only perform a ping on the first element in the array.
0
 
LVL 4

Author Closing Comment

by:CraigLazar
ID: 33635502
thanks guys for the help
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Today I had a very interesting conundrum that had to get solved quickly. Needless to say, it wasn't resolved quickly because when we needed it we were very rushed, but as soon as the conference call was over and I took a step back I saw the correct …
Calculating holidays and working days is a function that is often needed yet it is not one found within the Framework. This article presents one approach to building a working-day calculator for use in .NET.
Video by: ITPro.TV
In this episode Don builds upon the troubleshooting techniques by demonstrating how to properly monitor a vSphere deployment to detect problems before they occur. He begins the show using tools found within the vSphere suite as ends the show demonst…
In response to a need for security and privacy, and to continue fostering an environment members can turn to for support, solutions, and education, Experts Exchange has created anonymous question capabilities. This new feature is available to our Pr…

604 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question