Im trying to gather the following information using VB.NET and .NET 2
-IP Address - I havent seen any usefull resources about the .NET framework with IP Address collecting
-MAC Address
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Im trying to gather the following information using VB.NET and .NET 2
-IP Address - I havent seen any usefull resources about the .NET framework with IP Address collecting
-MAC Address
You can definitely use WMI to get the MAC addresses of any network adapters in your machine:Note that this requires a reference to System.Management. The IP address I don't know as I've never had the pleasure, but the Win32_NetworkAdapterConfiguration class has a property named IPAddress that is a string array.VB Code:
Dim networkAdapters As New Management.ManagementClass("Win32_NetworkAdapter") For Each networkAdapter As Management.ManagementObject In networkAdapters.GetInstances() MessageBox.Show(String.Format("Name: {1}{0}Type: {2}{0}MAC Address: {3}", _ Environment.NewLine, _ networkAdapter("Name"), _ networkAdapter("AdapterType"), _ networkAdapter("MACAddress"))) Next networkAdapter
Edit:
Search for "Win32_NetworkAdapter" on MSDN for more information on that class.
VB Code:
' *****VB2005***** Option Strict On Public Class Form1 ' add reference to system.management Private listview1 As New ListView Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Me.Controls.Add(listview1) GetNetworkInfo() End Sub Private Sub GetNetworkInfo() ' storing Network adapters in this: Dim adapters As New ArrayList Dim pDataCol As System.Management.PropertyDataCollection Dim pData As System.Management.PropertyData ' Get info from the WIN32_NetworkAdapterConfiguration Class Dim networkAdapterConfigurationClass As New System.Management.ManagementClass("Win32_NetworkAdapterConfiguration") Dim configurationInstances As Management.ManagementObjectCollection = networkAdapterConfigurationClass.GetInstances Dim configurationInstance As Management.ManagementObject ' Loop through each instance (in this case each adapter) For Each configurationInstance In configurationInstances pDataCol = configurationInstance.Properties pData = pDataCol.Item("IPAddress") ' skip anything without an IP: If pData.Value Is Nothing Then Continue For ' we are storing the information in a structure called NetworkAdapter defined later... Dim anotherAdapter As New NetworkAdapter ' There could be more than 1 IP, so the this is an array: anotherAdapter.IPAddresses = DirectCast(pData.Value, String()) ' Get the remaining info for this adapter ' To get the name we need to use another management class, it also has ' the index property of the adapters, so we can find this adapter from its index pData = pDataCol.Item("Index") If pData.Value IsNot Nothing Then ' store the index: anotherAdapter.Index = pData.Value.ToString ' we have a function to get the name: anotherAdapter.Name = GetName(Convert.ToUInt32(pData.Value)) End If ' finally MACAddress: pData = pDataCol.Item("MACAddress") If pData.Value IsNot Nothing Then anotherAdapter.MACAddress = pData.Value.ToString End If ' store the NetworkAdapter in the arraylist adapters.Add(anotherAdapter) Next If adapters.Count = 0 Then Exit Sub ' no network adapters! FillListView(adapters) End Sub Private Function GetName(ByVal index As UInteger) As String ' Friendly name is in a different management class ' We'll match adapters with the index Dim adaptername As String = "" Dim pDataCol As System.Management.PropertyDataCollection Dim pData As System.Management.PropertyData ' same as other class really... Dim networkAdapterClass As New System.Management.ManagementClass("Win32_NetworkAdapter") Dim networkAdapterInstances As Management.ManagementObjectCollection = networkAdapterClass.GetInstances Dim networkAdapterInstance As Management.ManagementObject For Each networkAdapterInstance In networkAdapterInstances pDataCol = networkAdapterInstance.Properties pData = pDataCol.Item("Index") If index = Convert.ToUInt32(pData.Value) Then ' indexes match so this is the same adapter, so get its name pData = pDataCol.Item("Name") If pData.Value IsNot Nothing Then adaptername = pData.Value.ToString Exit For End If End If Next Return adaptername End Function Private Structure NetworkAdapter ' store info for each adapter: Public Index As String Public MACAddress As String Public IPAddresses() As String Public Name As String End Structure Private Sub FillListView(ByVal adapters As ArrayList) ' display results: Me.listview1.Dock = DockStyle.Fill Me.listview1.View = View.Details Me.listview1.Columns.Add("Name", -1, HorizontalAlignment.Left) Me.listview1.Columns.Add("IPAddress", -1, HorizontalAlignment.Left) Me.listview1.Columns.Add("MACAddress", -1, HorizontalAlignment.Left) For i As Integer = 0 To adapters.Count - 1 Dim adapter As NetworkAdapter = DirectCast(adapters(i), NetworkAdapter) Dim lvi As New ListViewItem(adapter.Name) Dim s As String = "" Dim count As Integer = 0 Do s &= adapter.IPAddresses(count) count += 1 Loop Until count = adapter.IPAddresses.Length lvi.SubItems.Add(s) lvi.SubItems.Add(adapter.MACAddress) Me.listview1.Items.Add(lvi) Next For i As Integer = 0 To 2 Me.listview1.Columns(i).AutoResize(ColumnHeaderAutoResizeStyle.ColumnContent) Next End Sub End Class
You said .net 2, so I've used vb05 stuff. It's easy enough to translate back to vb03 if thats what you have :p
Quote:
Originally Posted by jo0ls
.NET 2 is part of VS2005
Yes, I was trying to be clear about what it would compile on, and failed miserably...
It works in vb express 2005, so it will work in any visual basic 2005. It will not work with older versions of the framework as I used IsNot, listview.column.autoresize and a UInteger. So to convert it to work on earlier versions is trivial.
.Net 2 isn't really part as VS2005, you can download just the framework sdk and write programs in notepad if you really want.
I wish MSFT would make it simple like: my.computer.network.localip and my.computer.network.mac
but MSFT would never do that :P
Here's another way to get just the IP address I used once before..
VB Code:
Dim PCName as String = Dns.GetHoseName.ToString Dim myIPHost As System.Net.IPHostEntry = Dns.Resolve(PCName) Dim myIP As System.Net.IPAddress = myIPHost.AddressList(0) MsgBox(myIP.ToString)
It'll also tell you the PC name.. His way is more thorough though.
Bill
When I use the method I suggested I get about 6 or 7 network adapters with MAC addresses.Quote:
Originally Posted by tylerm
It displays the Name but the Type and Address do not appear.Code:Dim networkAdapters As New Management.ManagementClass("Win32_NetworkAdapter")
For Each networkAdapter As Management.ManagementObject In networkAdapters.GetInstances()
net_mac.Text = String.Format("Name: {1}{0}Type: {2}{0}MAC Address: {3}", _
Environment.NewLine, _
networkAdapter("Name"), _
networkAdapter("AdapterType"), _
networkAdapter("MACAddress"))
Next networkAdapter
That's why I coded it the way I did: to show that there are a number of network adapters of different types in most machines. You need to use the properties of each to determine which one(s) you are interested in. I changed my code to append each output to a TextBox and here's what I got:It would only be those with a type of "Ethernet 802.3" that you would be interested in, and I'm guessing that all the "Miniport" ones are software devices rather than hardware. Obviously the 1394 adapter is a FireWire connection, which leaves the second last item as the primary network adapter. This logic is not definitive, so you may need to do some more research to make sure you are using the best criteria to identify the primary network adapter, but I wanted to point out that it is not just a straightforward "GET MAC ADDRESS" kind of thing. There may also be other properties of the Win32_NetworkAdapter class, or indeed other classes, like Win32_NetworkAdapterConfiguration, that will help you to identify just the one you're looking for. I don't know if all the 802.3 adapters would have an IP address assigned, but you could use jo0ls code to work that out, maybe with slight modification to exclude all items with a type other than "Ethernet 802.3".Quote:
Name: 1394 Net Adapter
Type: Ethernet 802.3
MAC Address: 82:F3:C8:A6:41:BD
Name: RAS Async Adapter
Type:
MAC Address:
Name: WAN Miniport (L2TP)
Type:
MAC Address:
Name: WAN Miniport (PPTP)
Type: Wide Area Network (WAN)
MAC Address: 50:50:54:50:30:30
Name: WAN Miniport (PPPOE)
Type: Wide Area Network (WAN)
MAC Address: 33:50:6F:45:30:30
Name: Direct Parallel
Type:
MAC Address:
Name: WAN Miniport (IP)
Type:
MAC Address:
Name: Packet Scheduler Miniport
Type: Ethernet 802.3
MAC Address: EC:2D:20:52:41:53
Name: Microsoft Tun Miniport Adapter
Type: Ethernet 802.3
MAC Address: 02:00:54:55:4E:01
Name: NVIDIA nForce Networking Controller
Type: Ethernet 802.3
MAC Address: 00:50:8D:D7:89:6D
Name: Packet Scheduler Miniport
Type: Ethernet 802.3
MAC Address: 00:50:8D:D7:89:6D
I just excluded everything without an IP. Attached is a version that gets a few more fields, and which doesn't filter. Another thing to look for to find the primary adapter is the DefaultIPGateway value.
I didn't look too closely at your code jo0ls. Another thing to note is that you can actually generate .NET classes that correspond to WMI classes automatically using the mgmtclassgen.exe utility. That way you can use strongly-typed objects instead of indexing properties of ManagementObject instances.