> Im trying to figure out how to use NFSen for NAT purposes
1. What type of device is generating the netflow records?
2. What *interface* on that device is generating the netflow records?
If this is a Cisco router (and this router is doing NAT): modern
versions of IOS can be configured to collect Netflow information in both
"inbound" and "outbound" directions on the same interface. So configure
netflow on the *inside* interface only, but collecting both in and out.
Your netflow records will show (private)->(public) and
(public)->(private) as mirrored pairs as expected.
If this is a Cisco ASA firewall: build nfdump with --enable-nsel and you
will see both original and NAT'd addresses.
If this is something else: tell us what you have :-)
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