Radiusreport can produce many varied reports by analysing your RADIUS
detail files. detail files can be uncompressed/compressed/gzipped.

 - User Online time reports plus extras like bandwidth used, etc.  
 - IP address usage.
 - Last login time reports.

As of V.02 radiusreport can generate individual files for each user by
using the -o flag in conjunction with '-l all'.  This function will
enable you to 'reprocess' radiusreport's output, e.g. to email a copy of
each users report to them.

WWW: http://www.tibus.net/pgregg/projects/radiusreport/
