g1smd - 7:38 am on Sep 29, 2012 (gmt 0)
You mentioned that you wanted a "rewite". Your code generates a 302 redirect, not an internal rewrite.
I don't think you need either. After the Conditions, you should simply block access with something like:
RewriteRule . - [F]
The "other forum" would be the Apache forum here at WebmasterWorld.