[TYPO3] Error 403 handling with realurl

[Thomas Scholze]

Hello list,
is it possible to handle 403 errors with TYPO3/realurl?

Some pages are only available via login. Without a valid login the URL 
brings up an error 404 but should be 403.
This case sophisticates logfiles and statistics.
Is there any solution ?

Thanks for any hint.

Regards
Thomas