Integrate your forums with your wordpress seamlessly.
In this case header/footer will work same for both.
http://wpbbpthemes.org/integration/
Just enable WordPress functions in bbPress and paste this in your header:
<?php wp_page_menu(); ?>
If you wanna have a homelink:
<?php wp_page_menu('show_home=Home'); ?>
You can do that with deep integration by what MathiasB suggested or how your theme handles it. wp_page_menu
or wp_list_pages()
Pros & Cons – http://blog.ashfame.com/2010/02/bbpress-deep-integration-advantages-disadvantages/
Deep integration – http://www.wpwebhost.com/make-bbpress-theme-match-with-wordpress-by-deep-integration/
Better one – Copy over the html of navigation to bbPress side. Its not worth using deep integration just for this alone.
But it’s a lot more easy, when you add a page in WP will it automatically appear in the header of bbPress…
But on slower hosts will it slow down a lot your site.