public String GetIPAddress()
{
if (_connection == IntPtr.Zero)
{
throw new RasException("The connection is not established.");
}
var pppip = new RASPPPIP();
var size = (UInt32)Marshal.SizeOf(typeof(RASPPPIP));
pppip.dwSize = size;
UInt32 result = RasNativeMethods.RasGetProjectionInfo(_connection, RASPROJECTION.RASP_PppIp, pppip, ref size);
if (result != 0)
{
throw new RasException(result);
}
return(pppip.szIpAddress);
}
public static extern UInt32 RasGetProjectionInfo(IntPtr hRasConn, RASPROJECTION projection, [In, Out] RASPPPIP pppip, ref uint ppipSize);