If you got Duldung and you appeal against it successfully you will be granted another another type of legal status (e.g. subsidiary protection or you will be a fully recognized refugee). If your appeal fails, you will still have Duldung.
It is not possible to apply for asylum a second time. You can only appeal after a first decision has been made on your case.
I'm not sure if I understood your question correctly. Please specify it in case I missed the point.