You would have to change the discussion board rewriting rules to achieve that. These links are not hardcoded in the database.
Discussion board, blogs, and other more complex parts have specific URL rewriting rules to allow them to be dropped on an arbitraty page without any changes to URL rwriting rules. They track the name of the page they are placed onto, and use it in the URL rewriting process. You can change these rules to follow this scenario:
<rewrite url=
"^(.*)/dboard/(.*)/(.*)/(\?(.+))?$"
to=
"$1/MonoX/Pages/SocialNetworking/Discussion.aspx?boardId=$2&$5"
name=
"Discussion"
defaultPage=
"/MonoX/Pages/SocialNetworking/Discussion.aspx"
urlPattern=
"/dboard/{BoardId}/{Slug}/"
/>