Change routers cause Cache run invalid

Question

http://book.cakephp.org/view/1382/Clearing-the-Cache

It is important to remember that the Cake will clear a cached view if a model used in the cached view is modified. For example, if a cached view uses data from the Post model, and there has been an INSERT, UPDATE, or DELETE query made to a Post, the cache for that view is cleared, and new content is generated on the next request.

But if use Router::connect to change URL. Cache dont cleared when INSERT, UPDATE, or DELETE. THere has any way to fix this ?