Hi,

first of all: thank you very much for these awesome tools.

I have a question regarding nfsen and the flow data visualization. My 
goal is to have a profile that visualizes the traffic with respect to 
the directions, i.e., inside-outside and outside-inside, independent 
from the actual flow's direction.

I get the netflow (v9) from an ASA5505 (9.1(3)), using nfcapd (nfdump 
version 1.6.12).

nfdump was compiled with --enable-nfprofile --enable-nftrack 
--enable-sflow --enable-nsel

The flows themselves look perfectly fine, when using nfdump, except for 
the fact that the packet count is always 0, e.g.,

Date first seen          Event  XEvent Proto      Src IP Addr:Port 
Dst IP Addr:Port     X-Src IP Addr:Port        X-Dst IP Addr:Port  In 
Byte Out Byte
2014-11-20 20:21:31.929 CREATE  Ignore TCP      192.168.0.1:54321 -> 
x.x.x.x:443      y.y.y.y:54321 ->   x.x.x.x:443          0        0
2014-11-20 20:21:31.929 DELETE    2028 TCP      192.168.0.1:54321 -> 
x.x.x.x:443      y.y.y.y:54321 ->   x.x.x.x:443       1234     4567

where 192.168.0.1 is some inside-Client, y.y.y.y is some webserver, 
x.x.x.x is the ASA's outside-IP.

As far as I as understood, an ASA flow is bidirectional per se. For this 
reason, I cannot have a split traffic view, using a filter like "IN IF 
<outside_if_index>", and "OUT IF <outside_if_index>", respectively. Is 
that right?

Is there another way to have such a directional traffic view?

Thank you very much in advance.

Best regards,
Simon

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