Hi Alan I have been playing with the attr_filter after enabling the attr_filter.post-proxy in sites-default This enables me to filter requests – and that is fine, but I need to add attributes to the final response to the NAS – Where would be the best place to do that ? On the other hand, I requested a quote from the freeradius commercial side, but not gotten any response – just trying to speed things up as we are in a bit of a pickle. perhaps people are off for the season - Benedikt On 22/12/2016, 19:43, "Freeradius-Users on behalf of A.L.M.Buxey@lboro.ac.uk" <freeradius-users-bounces+benedikts=vodafone.is@lists.freeradius.org on behalf of A.L.M.Buxey@lboro.ac.uk> wrote: Hi, > Current running environment: > freeradius: FreeRADIUS Version 2.1.12, for host x86_64-pc-linux-gnu, built on Aug 26 2015 at 14:47:03 upgrade. seriously. > can someone point me in the right direction where this is configured run a session in debug mode, look at the output and read the flow - you'll see that pre-proxy gets hit, the packet gets sent off to remote proxy, then return stuff goes through post-proxy and then post-auth. you can use post-proxy or post-auth. the technical guide might be useful: http://networkradius.com/doc/FreeRADIUS-Technical-Guide.pdf alan - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html