Rather than use Allow, Deny, I'd rather use a redirect in which the URL doesn't change. Largely because I want to redirect the offending pip address to a php page that will add a cookie to the offending machine to track if they change their ip address so I can update the htaccess to deny them access again.
Anyone able to help?
I've tried a number of examples I've found online and so far managed to create nothing but 500 errors and infinte loops! Oh yea, and I managed to block all ip addresses at one point

Edit: Should also point out there's a bunch of other stuff already in my htaccess file that needs to remain working.