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Get remote pc mac address with vb.net

Posted on 2011-03-24
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Last Modified: 2012-05-11
Hi,
I'm working on a local application that retrieve a network card physical address. Here is my code:

Private Sub frmRemoteMacAddress_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

        Dim theNetworkInterfaces() As System.Net.NetworkInformation.NetworkInterface = System.Net.NetworkInformation.NetworkInterface.GetAllNetworkInterfaces()

        For Each currentInterface As System.Net.NetworkInformation.NetworkInterface In theNetworkInterfaces

            If currentInterface.OperationalStatus = Net.NetworkInformation.OperationalStatus.Up And currentInterface.NetworkInterfaceType.ToString() = "Ethernet" Then

 lblRequestedMacAddress.Text = currentInterface.GetPhysicalAddress().ToString()
                    ' lblNicModel.Text = currentInterface.Description.ToString()
                End If
        Next
    End Sub

Therefor, this code retrieve only the local mac address.
Can anyone correct me please?
Thanks.
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Question by:hamda000
  • 6
  • 3
10 Comments
 

Expert Comment

by:Casirus
ID: 35214110
i found a few things like this before here is a code that gets it with WMI

to use this code you need to import System.Management and System.Management.Instrumentation namespaces

what it does is sends a request to a remote network computer to get the info

if its over the internet your wanting to do this then i would need to do some more looking

let me know if this helps

D.L.H.

Dim tm As New ManagementScope("\\" & ComputerName & "\root\cimv2")
        Dim tq as new string = "SELECT * FROM Win32_NetworkAdapterConfiguration WHERE IPEnabled = 1"

        Dim toq As New ObjectQuery(tq)

        Dim ts As New ManagementObjectSearcher(tm, toq)
        Dim trc As ManagementObjectCollection = ts.get()

        For Each cr As ManagementObject In trc
            MessageBox.Show(cr("MacAddress").ToString())
        Next

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Author Comment

by:hamda000
ID: 35214378
Hi,

Thanks for the answer.
first the following statement has error:
Dim tq as new string = "SELECT * FROM Win32_NetworkAdapterConfiguration WHERE IPEnabled = 1"
The error is: end of statement expected.
Dim toq As New ObjectQuery(tq):
Error: tq is not declared.
We should may be write it this way:
Dim tq as new string( "SELECT * FROM Win32_NetworkAdapterConfiguration WHERE IPEnabled = 1")
NO error

Second error in this line:
For Each cr As ManagementObject In trc
trc is underlined and have this statement:
Expression is of type 'RemoteComputerInfos.ManagementObjectCollection' which is not collection type.

Please take note that RemoteComputerInfos is the name of my application (Solution).

Thanks for correcting or submitting new items. I'm still working on.
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LVL 83

Expert Comment

by:CodeCruiser
ID: 35217025
Have you added

Imports System.Management

at the top and added reference to it as well?
0
 

Author Comment

by:hamda000
ID: 35219654
Yes I did.
0
 

Expert Comment

by:Casirus
ID: 35239581
ahh ok sorry for taking so long but here is the way to fix it use the following edited code and follow the instructions at the bottom

 Dim tm As New ManagementScope("\\" & ComputerName & "\root\cimv2")
        Dim tq As String = "SELECT * FROM Win32_NetworkAdapterConfiguration WHERE IPEnabled = 1"
        Dim toq As New ObjectQuery(tq)

        Dim ts As New ManagementObjectSearcher(tm, toq)
        Dim trc As ManagementObjectCollection = ts.get()

        For Each cr As ManagementObject In trc
            MessageBox.Show(cr("MacAddress").ToString())
        Next

right click on references in solution explorer go to add reference and add System.Management.dll and  System.Management.Instrumentation.dll into the project.

and then try again :)
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Author Comment

by:hamda000
ID: 35243261
Thank you.

Therefore I right click or double click on the My project (I am on VS 2010), I'm on the references tab, I choose the .com where are stored the .dll files and I click on Add but in the references list there are no System.Management.dll or System.Management.Instrumentation.dll

Sorry and thanks anyway
0
 

Expert Comment

by:Casirus
ID: 35280311
for the affore mentioned dlls are located in .NET not .COM

sorry for not pointing this out to start

DLH
0
 

Accepted Solution

by:
hamda000 earned 0 total points
ID: 35309147
Hi Casirus and thanks for ur help. It is not working. here is my whole code:


Imports System
Imports System.Management
Imports System.Management.Instrumentation
Imports System.Windows.Forms



Public Class frmRemoteComputerInfos


    Dim computerName As String
    Private Sub frmRemoteComputerInfos_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        lblTodayDate.Text = Today

        computerName = InputBox("Tapez le nom de l'ordinateur auquel vous voulez vous connecter...", "Nom de l'ordinateur...")
        lblComputerName.Text = computerName.ToUpper
        lblRequestedIpAddress.Text = GetRemoteIPAddress()
    End Sub


    Function GetRemoteIPAddress()
        Dim ipentry As System.Net.IPHostEntry = System.Net.Dns.GetHostEntry(computerName)
        Dim strIPAddress As String = ""
        For i As Integer = 0 To ipentry.AddressList.Count - 1
            strIPAddress = System.Net.Dns.GetHostEntry(computerName).AddressList(i).ToString()
        Next
        Return strIPAddress
    End Function


    Private Sub GetRemoteMacAddress()
        Dim tm As New ManagementScope(computerName)
        Dim tq As String = "SELECT * FROM Win32_NetworkAdapterConfiguration WHERE IPEnabled = 1"
        Dim toq As New ObjectQuery(tq)

        Dim ts As New ManagementObjectSearcher(tm, toq)
        Dim trc As ManagementObjectCollection = ts.get()

        For Each ma As ManagementObject In trc
            MessageBox.Show(ma("MacAddress").ToString())
        Next

         End Sub

   
    Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
        Timer1.Start()
        lblChrono.Text = lblChrono.Text - 1
        If lblChrono.Text = "0" Then
            Timer1.Stop()
            Console.Beep()
            Me.Close()
        End If
    End Sub

    Private Sub btnClose_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnClose.Click
        Me.Close()
    End Sub


End Class

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Author Comment

by:hamda000
ID: 35361250
HI everyone,

Sorry but all solutions displayed are did not fix my project. Please find attached a .sln file including my project. Some words are in french but I know you undrstand. If you need more files just let me know or tell me how I can upload the whole project.

Thanks.
Remote-Computer-Infos.vb
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Author Closing Comment

by:hamda000
ID: 35814179
thanks.
0

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