Hmm. An explanation of
you're trying to do something will generally help with the how. You could, for instance, forget about HTTP POST entirely and pass the data in a temporary file numbered according to IP - but if the script you're trying to pass to is on another server, that won't help. Or, as mentioned above, you could return a page with all the post data in hidden form fields and have it submit itself using Javascript - but if the browser doesn't have Javascript, or has Javascript turned off, that method won't work so well either.