VB.NET获取MAC地址
方法一：nbtstat 命令
Public Function GetMac(ByVal IP As String) As String
Try
定义输出变量。
Dim StrMac As String = String.Empty
Dim Str As String = String.Empty
定义进程参数。
Dim Info As New ProcessStartInfo
Info.FileName = "nbtstat"
Info.Arguments = "-a " + IP
Info.UseShellExecute = False
Info.RedirectStandardInput = False
Info.RedirectStandardOutput = True
Info.RedirectStandardError = True
Info.CreateNoWindow = True
Info.WindowStyle = ProcessWindowStyle.Hidden
定义新进程。
Dim mProcess As New Process
开始执行操作。
mProcess = Process.Start(Info)
无限循环按行读取输出内容。
While True
读取一行数据。
Str = mProcess.StandardOutput.ReadLine()
mProcess.WaitForExit()
StrMac = Str.Trim()
判断是否有 Mac Address字眼。
If StrMac.ToLower.Contains("mac address") Then
Exit While
Else
If StrMac.ToLower.Contains("host not found") Then
Exit While
End If
End If
End While
返回值。
Return StrMac
Catch ex As Exception
返回错误值。
Return String.Format("Get Error. 原因:{0}", ex.Message)
End Try
方法2：SendARP 函数
Private Declare Ansi Function SendARP Lib "Iphlpapi.dll" (ByVal dest As Int32, ByVal host As Int32, ByRef mac As Int64, ByRef length As Int32) As Int32
Private Declare Ansi Function inet_addr Lib "Ws2_32.dll" (ByVal IP As String) As Int32
Public Function getRemoteMAC(ByVal RemoteIp As String) As String
Dim Dest As Int32 = inet_addr(RemoteIp)
Dim Str As String = String.Empty
Dim StrMac As String = String.Empty
Try
Dim MacInfo As New Int64
Dim Len As Int32 = 6
Dim Res As Integer = SendARP(Dest, 0, MacInfo, Len)
Str = Convert.ToString(MacInfo, 16).ToUpper
If Str.Length = 12 Then
因为取出来的值是反的，所以要处理下。
Dim M(5) As String
M(0) = Str.Substring(10, 2)
M(1) = Str.Substring(8, 2)
M(2) = Str.Substring(6, 2)
M(3) = Str.Substring(4, 2)
M(4) = Str.Substring(2, 2)
M(5) = Str.Substring(0, 2)
StrMac = String.Format("{0}-{1}-{2}-{3}-{4}-{5}", M(0), M(1), M(2), M(3), M(4), M(5))
Else
StrMac = "Host not found."
End If
Catch ex As Exception
返回错误值。
Return String.Format("Get Error. 原因:{0}", ex.Message)
End Try
Return StrMac
End Function
方法3：用WMI,先工程-引用 Microsoft WMI Scripting V1.1 Library
Private Sub wmiSoundDeviceInfo()
Dim wmiObjSet As WbemScripting.SWbemObjectSet
Dim obj As SWbemObject
wmiObjSet = GetObject("winmgmts:{impersonationLevel=impersonate}"). _
InstancesOf("Win32_Networ
