I installed “DNS Server beta” 1.0-0012 on my Synology DS409slim. This package ships with Bind 9.9.2. This means we should be able to gather statistics from the embedded HTTP/XML server.
The Freebox Revolution has a nice management GUI which provides metrics about in/out traffic. Unfortunately, it can only be seen from the management pages when you’ve been authenticated.
Here’s a way to script the grab of the traffic pictures to show them in any Web page.