VS 2008 : Use The DHCP API To Retrieve A Computer's MAC Address When Given The IP Address?

Nov 27, 2009

I'm trying to use the DHCP API (using the references on pinvoke.net) to retrieve a computer's MAC address when given the IP address but I can't get the code to work. I've run all the C# code on pinvoke.net through the C#-to-VB converter but I'm stuck now.

Here's what I have so far. The value of res is always 5 (should be 0). Thing is, I can't find any documentation on what the return codes mean

vb
Private Sub GetMACDim client As String = "1.1.1.1"        Dim server As String = "0.0.0.0"        Dim si As New NativeMethods.DHCP_SEARCH_INFO        si.SearchType = NativeMethods.DHCP_SEARCH_INFO_TYPE.DhcpClientIpAddress        si.ClientIpAddress = Convert.ToUInt32(StringIPAddressToUint32(client))         Dim res As UInteger        Dim oInfo As IntPtr    

[code]....

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[Code].....

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