htaccess: how to block ip in a rewrite url

is it possible to block some ip or allow some ip

in some specific htaccess rewrite path

eg: using a php mvc framework, there is a htaccess to rewrite the query string(controller) into开发者_如何学编程 slash format, i want to allow some ip access on some specify controller without PHP code

is it possible to use htaccess?

It is covered by the first section of the Apache Manual chapter on Access Control