Hi, we're encountering that our radius clients - who don't send anything but access requests and session stop packets with accounting info - repeatedly send the same accounting stop request multiple times. We tried to filter those requests with increasing both the cleanup_delay and max_requests configuration settings, but were not really successful. Looks like the cleanup_delay counter is not effective per request's unique id but for all requests received so far. Are we misinterpreting the cleanup_delay setting? Is there any fast and reliable method built into freeradius to reject multiple identical accounting requests, or do you have any better suggestions? freeradius: FreeRADIUS Version 2.0.4, for host x86_64-pc-linux-gnu (Debian package) Thanks a lot