Hi,

another question that arose during the debugging. How do the
--in-iface-idx 910
--out-iface-idx 917

switches work? From the help text, I was under the impression that nProbe will 
modify/fake the corresponding snmp interface id, which is useful when dealing 
with flows from multiple routers and interfaces.
So when setting interface ids to 910 and 917 I assumed that when configuring 
Wansight and specifying those IDs for the Flow Probe, all traffic would show up.

But it seems it does not work that way? The SNMP ID is still the ID from the 
interfaces on our routers so our customer would need to specific each Interface 
that we sample so that Wansight shows the traffic.
Otherwise only the traffic which actually runs over these snmp interface ids 
will show up in Wansight.

In my captures from nProbe, Wireshark shows for InputInt and OutputInt the 
original value from our router.
In the capture provided by you, both fields show 0.

Viele Grüße, best regards,

Benjamin Weik

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Von: [email protected] 
<[email protected]> Im Auftrag von Luca Deri
Gesendet: Montag, 12. März 2018 11:46
An: [email protected]
Betreff: Re: [Ntop-misc] nProbe and Andrisoft compatibility

Benjamin
all I did is this:

I have started "nprobe nprobe.conf” (basically is your config file) and sent 
some flows to nprobe, then captured the emitted flows with wireshark. I enclose 
the pcap with such flows. If you open them with wireshark everything looks good 
with no decoding errors whatsoever.

Please tell the Wansight folks to contact us and report the exact issue (so 
that we can reproduce it an fix it), so we can use to reproduce the issues they 
mentioned you.

Regards Luca
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