> For my accounting purposes, a combination of the Session-ID, the NAS
> hostname, and the time of the transaction (in UTC format) produces a
> suitably unique key for the record; the transaction time is given
> precedence, in case the Session-IDs get corrupted (and it makes sorting
> the records chronologically easy). MegaZone's suggestion (including the
> username and NAS Port) is probably better for larger installations.
Where do you get the time from? If you happen to get more than one
packet, the times may be slightly different. I suppose you could check
for within an hour or something like that.
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Steven P. Crain scrain@shore.net http://www.shore.net/~scrain
Shore.Net Unix Development and Administration
An ISP with Excellence in the Greater Boston Area.