Thanks for that. I've also discovered I can separate out the netflow data 
coming from each office's router using dynamic network interfaces. I followed 
the instructions provided at https://github.com/ntop/ntopng/issues/1444 to 
enable Probe IP disaggregation criterion, and to add %EXPORTER_IPV4_ADDRESS to 
the template.  I assume this does the same thing as host pooling, assuming one 
wants to pool every subnet on each router? I have this running now, so I can't 
try creating host pools unless I undo those changes.

One thing I've noticed with dynamic interfaces is that if I select one, then 
click on the chart icon, the traffic peaks seem way too  high. Eg 85Mbps when 
we only have a 14Mbps link. If I click on Hosts/Networks, and select one of the 
local subnets, it seems ok. Is there something wrong with that combined chart?

Is it possible to name the dynamic network interfaces so I don't have to keep a 
list of all the routers' ip addresses?

> -----Original Message-----
> From: ntop-boun...@listgateway.unipi.it [mailto:ntop-
> boun...@listgateway.unipi.it] On Behalf Of Simone Mainardi
> Sent: Tuesday, 13 February 2018 1:29 AM
> To: n...@unipi.it
> Subject: Re: [Ntop] Combining subnet statistics
> 
> Yes, you can do that.
> 
> You should create an host pool for any branch you are interested monitoring.
> An host pool can be defined as a set of subnets so this will do the trick. 
> Once
> you've created the pools, visit the ntopng preferences and enable the
> timeseries creation for them.
> 
> Simone
> 
> > On 12 Feb 2018, at 00:08, Peter Shute <psh...@nuw.org.au> wrote:
> >
> > We have several subnets in each of our branch offices that can use our
> WAN. I have listed each of these in ntopng.conf:
> > --local-networks=
> "192.168.0.0/23,192.168.2.0/24,192.168.3.0/24,192.168.6.0/24,192.168.7.0/24,
> 192.168.30.0/24,192.168.60.0/24,192.168.32.0/24,192.168.62.0/24,192.168.33.
> 0/24,192.168.3.0/24,192.168.37.0/24,192.168.67.0/24"
> >
> > I can view charts for each subnet individually, but I would like to see the
> total for each branch office. E.g 192.168.2.0/24 + 192.168.32.0/24 +
> 192.168.62.0/24.
> >
> > Is there a way to do this? Because of the subnet ranges they've used (last
> digit of second last number indicates branch office), I can't just define a
> subnet range to cover them.
> >
> > Peter Shute
> > _______________________________________________
> > Ntop mailing list
> > Ntop@listgateway.unipi.it
> > http://listgateway.unipi.it/mailman/listinfo/ntop
> 
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