santiagoawa (AT) hotmail (DOT) com wrote: NP, the default definition of the acctuniqueid attribute is correct. I don't think you're clear on what is being discussed. It is more possible that a user connect and disconnect several times in a same session. No, it is not possible. I think it is task of the NAS to assign a unique session id to a user. Yes, and many NASes don't do that. With acct_unique specification freeradius builds acctuniqueid attribute. Yes, which is why I wrote the "acct_unique" module. Alan DeKok.