Hello, During authentication/authorization Radius queries our backend for validity of the user (exec modules), which return several response attributes to Radius and in consequence to the NAS. Now, if possible, I would like to re-use some of that information at accounting stage. The thing is that I'm proxying the NAS' accounting packets to another firewall for SSO access, which also requires that information. The NAS doesn't remember the custom attributes from authentication response and doesn't include them in the accounting request. Probably, it doesn't have or need to. Still, I have to add them back in somehow . Of course I could just ask the backend again, to obtain the same information, but maybe it's possible without that. Less scripts, you know. Maybe there's no magic here which I'll gladly accept. :) I thought that since the server seems to know during challenge-response at authentication time which session is which, there may be a way here too. Don't hang me if that's not the case and these things are unrelated. I see that the NAS transmits an audit-session-id which is identical in both the authentication and accounting packets. Maybe I could leverage that. But still both worlds (authentication/accounting) would somehow need to share some data. Thanks, Marki