Hi,

Yes, I might have been unclear, sorry.

Exporting flows to nTop works fine. If i run nProbe with the -i eth0 flag
I can see statistics in nTop and the flows are exported through the zeromq
socket.

It's the NetFlow part that I can't get to work (--collector-port 2055).
I'm sending NetFlow data to port 2055 on the nProbe/nTop host. The port is
open i the CentOS-firewall. But nProbe doesn't seem to be collecting.

I'm concerned about these errors:

18/Sep/2015 17:41:17 [collect.c:51] ERROR: Bad configuration: flows will
be sent to the collection port
18/Sep/2015 17:41:17 [collect.c:52] ERROR: causing a waterfall effect:
flow collection will be disabled

/Oscar

On Fri, September 18, 2015 11:12 am, Yuri Francalacci wrote:
> Oscar,
> in this scenario ntopng will connect to port 5556 of nprobe (note that
> nProbe acts as server instead of client in this case).
> So, you will not see any packet exported on port 2055 for sure, but if
> ntopng is configured in the right way, you will see traffic from ntopng to
> nprobe on port 5556.
> Yuri
> ###############################################
> Yuri Francalacci   -   [email protected]   -   http://www.ntop.org
> "Simplicity is the ultimate sophistication" - Leonardo da Vinci
> ###############################################
>
>> On 18 Sep 2015, at 11:56, Oscar Carlstedt <[email protected]> wrote:
>>
>> Hi,
>>
>> I'm having trouble configuring nProbe as a NetFlow-collector and then
>> relaying to nTop. I'm using this command:
>>
>> [root@localhost ~]# nprobe --zmq "tcp://*:5556" --collector-port 2055
>>
>> And getting these results:
>>
>> 18/Sep/2015 17:41:17 [nprobe.c:3130] Valid nProbe license found
>> 18/Sep/2015 17:41:17 [nprobe.c:4488] WARNING: The output interfaceId is
>> set to 0: did you forget to use -Q perhaps ?
>> 18/Sep/2015 17:41:17 [nprobe.c:4491] WARNING: The input interfaceId is
>> set
>> to 0: did you forget to use -u perhaps ?
>> 18/Sep/2015 17:41:17 [nprobe.c:4552] Welcome to nProbe v.7.2.150914
>> ($Revision: 4468 $) for x86_64-unknown-linux-gnu with native PF_RING
>> acceleration
>> 18/Sep/2015 17:41:17 [nprobe.c:4562] Running on CentOS Linux release
>> 7.1.1503 (Core)
>> 18/Sep/2015 17:41:17 [nprobe.c:4573] [LICENSE] nProbe SystemId:
>> 688C59C68206217E
>> 18/Sep/2015 17:41:17 [nprobe.c:4584] [LICENSE] nProbe License:
>> D7D37ED89D454B911767CA48AE0BF91014740557803F3D11BE
>> 18/Sep/2015 17:41:17 [nprobe.c:4587] [LICENSE] nProbe Edition:  Standard
>> [without PF_RING Acceleration]
>> 18/Sep/2015 17:41:17 [nprobe.c:4614] [LICENSE] Maintenance is available
>> until Fri Sep 16 21:56:20 2016 [364 days left]
>> 18/Sep/2015 17:41:17 [nprobe.c:4658] WARNING: -n parameter is missing.
>> 127.0.0.1:2055 will be used.
>> 18/Sep/2015 17:41:17 [nprobe.c:6526] Welcome to nprobe v.7.2.150914 for
>> x86_64-unknown-linux-gnu
>> 18/Sep/2015 17:41:17 [plugin.c:1000] 0 plugin(s) enabled
>> 18/Sep/2015 17:41:17 [nprobe.c:6203] Non IPv4/v6 traffic is discarded
>> according to the template
>> 18/Sep/2015 17:41:17 [util.c:287] GeoIP: loaded AS config file
>> /usr/share/ntopng/httpdocs/geoip/GeoIPASNum.dat
>> 18/Sep/2015 17:41:17 [util.c:296] GeoIP: loaded AS IPv6 config file
>> /usr/share/ntopng/httpdocs/geoip/GeoIPASNumv6.dat
>> 18/Sep/2015 17:41:17 [nprobe.c:6698] IPv6 traffic will NOT be
>> exported/accounted by this probe
>> 18/Sep/2015 17:41:17 [nprobe.c:6699] due to configuration options (e.g.
>> use NetFlow v9)
>> 18/Sep/2015 17:41:17 [util.c:3840] Succesfully created ZMQ endpoint
>> tcp://*:5556
>> 18/Sep/2015 17:41:17 [util.c:2892] WARNING: Don't dropping privileges
>> (required by NetFilter)
>> 18/Sep/2015 17:41:17 [collect.c:51] ERROR: Bad configuration: flows will
>> be sent to the collection port
>> 18/Sep/2015 17:41:17 [collect.c:52] ERROR: causing a waterfall effect:
>> flow collection will be disabled
>> 18/Sep/2015 17:41:17 [nprobe.c:7035] nProbe started successfully
>>
>> I can see packets coming in:
>>
>> [root@localhost ~]# tcpdump -i ens160 udp dst port 2055
>> tcpdump: verbose output suppressed, use -v or -vv for full protocol
>> decode
>> listening on ens160, link-type EN10MB (Ethernet), capture size 65535
>> bytes
>> 17:37:07.828907 IP a.b.c.d.63493 > localhost.localdomain.iop: UDP,
>> length 72
>> 17:37:07.937884 IP a.b.c.d.63493 > localhost.localdomain.iop: UDP,
>> length 72
>> 17:37:08.046399 IP a.b.c.d.63493 > localhost.localdomain.iop: UDP,
>> length 72
>> 17:37:08.156147 IP a.b.c.d.63493 > localhost.localdomain.iop: UDP,
>> length 72
>> 17:37:08.264936 IP a.b.c.d.63493 > localhost.localdomain.iop: UDP,
>> length 72
>>
>> But no flows are exported to nTop. Am I missing any parameters?
>>
>> Please advise.
>>
>> Best Regards,
>> Oscar Carlstedt
>>
>> _______________________________________________
>> Ntop mailing list
>> [email protected]
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>
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/Oscar

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