What does the Navigation Sharepoint Sitemap/Breadcrumb use to populate links?

I am buildi开发者_JAVA技巧ng several layered site and the breadcrumb is skipping in-between sites.

Main Site > Current Site

I would like it to show, as I've seen in other sites

Main Site > SubSite > Current Site
Main Site > SubSite > SubSubSite > Current Site

In each 'in-between' site

• go to Site Setting / Look and Feel block / Top link bar
• Click on Stop Inheriting Links

This will cause the sites to show up in the top bread-crumb bar, while breaking getting rid of the Top link bar links.