allowing all URL's for a page

[showtell]

We are currently developing a website, and we have the page structure:

4 -  Gallery
4.1 -  Web gallery
4.2 -  Graphic gallery

So the current page URL's are as follows:

/gallery
/gallery/web-gallery
/gallery/graphic-gallery

So now the question is, how do i allow all further URL's under the subpages to show the subpage: eg:

/gallery/web-gallery/here-are-some-keywords/here-are-some-more-keywords => /gallery/web-gallery
OR
/gallery/web-gallery/here-are-some-keywords/1245789794 => /gallery/web-gallery

instead of a 'Not Found' page. Hope someone can get me an answer.

-Thanks

[Pierre M.]

Hello,

sounds to me you want a somewhat few content pages site under a pile of traffic pages. This is very dangerous for your ranking. You should read Search Engines guidelines for webmasters.

Technically, you can do want you are describing at the webserver level by rewriting URLs whatever the content/CMS behind.

Pierre M.