Blocking Interim-Update Accounting-Requests

Hi, is it possible to filter out accounting requests with an Acct-Status-Type of Interim-Update? rlm_attr_filter works obviously only when we are a proxy, and rlm_files with this acct_users changed nothing: DEFAULT Acct-Status-Type == Interim-Update, Auth-Type := Reject DEFAULT Acct-Status-Type == Start, Auth-Type := Accept DEFAULT Acct-Status-Type == Stop, Auth-Type := Accept I guess it's just not possible to handle acct-requests that way... Anybody with an idea? Otherwise I'll have to add that to our logging module. TIA.