We have found the pupils comments very valuable in picking up sites that should be unblocked - and they are usually more proactive than staff who may not bother sending in a form.
Not quite sure what you mean by this: the IP address of the server can be anything as long as we have the relevant details to allow secure access to our management systems. So, for example, users have external IP addresses, 10-dot E2BN addresses, or private addresses behind a NAT.
If a user submits a form from the block page then this can, indeed, be tracked back to an individual cache but this may not be a school one - more often that not, however, it will be the central LA caches. Also the request to block page can be submitted from anywhere.
V2 is already being deployed in school based systems allowing, for example, integration with a local AD.
Hmm - I think I must beg to differ - we have over 32,000 logged requests to show that they do work!
We have never been happy about this either! This was an issue with the Appliansys Cachebox - the newer ones (v3.12) come with ssh which is much better.
Regards.