Welcome to the Q&A Forum

If your sitemap.xml file is uptodate and/or all your links can be accessed by Google it does not make sense to submit links manually.

These guys are all right, but John is assuming you're on an Apache server. You very well might be, but you will need to determine if it's LINUX or WINDOWS based that your site is hosted on. Also, in addition to redirects I would go ahead and remove whatever internal links point to "www.yoursite.com/index.html" and change them to "www.yoursite.com" instead. The redirect will solve the problem ultimately, but fixing these links will help ever-so-slightly and especially in the meantime while you wait to fix your server level redirect. Good luck!