For all those on CLEO ..
log into your NED Dashboard, use the advanced options to set the page you want to redirect to instead of the standard block page to being a local server hosted one ..
Then, set up a webfilter for * (i.e. it will block everything .. MAKE SURE YOU DO NOT GO THROUGH THE CLEO BOX YOURSELF ELSE YOU WILL NOT BE ABLE TO PUT THIS BACK AND YOUR AF WILL BACKFIRE!!)
Then sit back and watch EVERY request be sent to the internet is down page, or whatever you choose to do .. lol .. :)
Too much time on my hands? Me? NO! lol ..