Double-up of radacct entries anmd radacct entries with UserName empty

[Alan DeKok]

Hanno Schupp wrote:
> I am having trouble with my radacct table. Which creates some 80k entries
> per annum. For about 1% of users it contains doubled up entries (entries
> with same AcctSessionId and same AcctUniqueId) and also lots of entries with
> the Username being empty (as opposed to either filled or Null).

  Blame the NAS.  FreeRADIUS logs whatever the NAS sends.  If the NAS
sends two packets that have *different* information for the same user
session... then the NAS is broken.

> What could cause the doubled up radacct entries and what might cause the
> empty UserName radacct updates?

  The NAS is sending bad data.

  Alan DeKok.