NAT IPFilter Log

[Sean Murphy]

Can someone tell me how I would setup IPFilter to log the NAT mappings for 
each
IP Address?  For example, if a machine say 192.168.17.15 connected to a web
server on the internet by having NAT map its address to 
168.26.193.13:2500  I'd
like to be able to log the address & port number that was mapped to the 
private
address and the time the session began and ended.
How would I do the above? Is it even possible?

This message was posted in 97 and was wondering if it was now possible?