Re: Need some conceptual guidance with sending flows to ntopng

Boyan Biandov <[email protected]>
Newsgroups gmane.linux.ntop.general
Message-ID <[email protected]>
Thanks Luca,

Actually adding a new interface wouldn't do it for me; I am looking for a way to tell which device reported a specific flow. Since I have multiple devices exporting flows to ntopng all of the flow data gets aggregated by ntopng since it arrives at the same interface - the eth0 of the VM where ntopng is running.

However that doesn't mean that most of the flows were captured at that interface -- the flows were reported by other devices and the traffic just arrive at the same interface of ntopng. So is there way to tell who reported a flow by looking at the flow record on the dashboard?

I can't find a place which shows that? Certainly ntopng has that information somewhere?

Thank you

~B

On April 15, 2017 at 12:47 PM Luca Deri <[email protected]> wrote:

Hi Boyan
you will be even more impressed if you use the development version of ntopng that implements many more features.

In order to configure new interfaces you can do that using the -i command line flag

Regards Luca

On 15 Apr 2017, at 20:56, Boyan Biandov <[email protected] > wrote:

Hi everyone,

I'm running ntopng 2.4.170215 - Pro Small Business Edition; all is well and I'm very impressed. My question becomes relevant when I send flows from other devices to ntopng. By other devices I mean physical devices which collect flows locally via their physical interfaces and then export flows to ntopng over the network.

Currently ntopng listens to 2 interfaces which are physically local to the VM where ntopng runs on: one is the localhost and the other is en Ethernet ens32 interface. When I send flows from remote devices the flows data gets "merged" into the ens32 interface as if the flow data was captured there. That of course isn't accurate.

How do I configure more interfaces (and those will all be remote interfaces) show up in the list box (shown below) so that I know where the flow was captured -- by where I mean which physical device reported to flow to ntopng?

<ntopng.png>

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