OT: NAT session tracking ?

From: Carlos G Mendioroz (tron@huapi.ba.ar)
Date: Tue Jul 17 2007 - 17:54:26 ART


Hi,
I was surprised today by a sensible question: how can I track
NAT sessions, in order to know who was using a given public
IP address at a given time ?

The scenario is a ISP that uses private addresses for some clients,
and needs to be able to track who was involved in past activity
(like spamming, attacks, etc.)

I would have asumed something was there to do this, but I was unable to
locate anything. I was looking for some SNMP trap that NAT could
generate on new sessions (and discarded ones), or tacacs accounting,
or radius, or...

Any idea ?

-- 
Carlos G Mendioroz  <tron@huapi.ba.ar>  LW7 EQI  Argentina


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