EZProxy authentication issue
 

Hello,

Our web site is hosted on a shared Linux server with a dedicated IP. We provide library content to certain academic users who are authenticated via IP prior to access being given. The list of allowed IPs are stored in the .htaccess file of the folder where the content resides.
So far, everything works as expected, except for some users who try to authenticate using middleware called EZProxy. Authentication attempts from anyone using EZProxy is rejected. All other legitimate access attempts work without issue.

It has been suggested by our client (who is attempting authentication through EZProxy) that once users log into the EZProxy server with their credentials (e.g. student number), the server provides them with its IP address and directs them to our URL. So far, so good.
At that point, however, the user is stripped of the proxy server data, including IP address, and is therefore redirected to an Access forbidden error page.
So, it looks like our server is rejecting the EZProxy server data even though it recognizes the IP address as valid. Possible?

Anyone have any ideas?

Thanks,
Mart