Impossible NetFlow statisitics

[johlsson]

Last week, I configured one of our F100D firewalls to send NetFlow to our collector.   However, in addition to the traffic to/from my actual networks, it reported the following impossible flows (captured in the attached images).  We don't possess the bandwidth to move just under 3.5 trillion gigabytes of data, or the time.  With the size of our pipe, it would take over eighteen thousand years to move that much data, let alone many such flows.

Is it possible to filter the NetFlow output to ignore this garbage?  My real data is lost in this noise.

Thanks.

Jesse

Of course, these

[johlsson]

I should also mention that not a single one of the client or server ip addresses are in my networks.  This fortigate is not routing that traffic.  So, why is it reporting that it is in NetFlow?