public static string GetMacFromIp(string ip)
{
var ipInt = IPUtils.DecIpToInt(ip);
Int32 length = 6;
var mac = new byte[6];
SendARP(ipInt, 0, mac, ref length);
return(IPUtils.MacToHexStr(mac));
}
public static string GetIpFromMac(string mac)
{
int size = 0;
GetIpNetTable(IntPtr.Zero, ref size, true);
var p = Marshal.AllocHGlobal(size);
List <MIB_IPNETROW> arpList = new List <MIB_IPNETROW>();
if (GetIpNetTable(p, ref size, true) == 0)
{
var num = Marshal.ReadInt32(p);
var ptr = IntPtr.Add(p, 4);
for (int i = 0; i < num; i++)
{
arpList.Add((MIB_IPNETROW)Marshal.PtrToStructure(ptr, typeof(MIB_IPNETROW)));
ptr = IntPtr.Add(ptr, Marshal.SizeOf(typeof(MIB_IPNETROW)));
}
}
Marshal.FreeHGlobal(p);
return(IPUtils.IntIpToDecStr(arpList
.Find(ipnetrow => IPUtils.MacToHexStr(ipnetrow.PhysAddr) == mac.ToUpper().Replace(':', '-')).Addr));
}