I am using the version 1.6.6-1 (debian wheezy), and just saw in the
changelogs for 1.6.8 P1 a comment like this:
- Fix v9/ipfix cache initialisation with no templates > 1 in same packet
Might it be something related to my issue?
2014-04-08 10:34 GMT+02:00 Joan <aseq...@gmail.com>:
> I am collecting netflow data that has both AS information (ext.2) and
> next-hop information(ext 4)
> I can verify that this data is being send by launching a tshark session
> > tshark -i eth1 host 192.168.1.9 -d udp.port==2591,cflow -s0 -V
> Would output something like this:
>
> > Flow 7
> > [Duration: 0.001000000 seconds]
> > StartTime: 64609.881000000 seconds
> > EndTime: 64609.882000000 seconds
> > Octets: 60
> > Packets: 1
> > IPVersion: 04
> > InputInt: 0
> > OutputInt: 0
> > Direction: Ingress (0)
> > SrcAddr: 123.123.123.1 (123.123.123.1)
> > DstAddr: 37.139.120.55 (37.139.120.55)
> > BGPNextHop: 125.5.5.5 (125.5.5.5)
> > SrcPort: 10960
> > DstPort: 17500
> > IP ToS: 0x00
> > TCP Flags: 0x00
> > Protocol: 17
> > SrcAS: 4808
> > DstAS: 7629
>
> The capture daemon is like this (launched by nfsen)
> > /usr/bin/nfcapd -w -D -p 2591 -u netflow -g www-data -B 200000 -P
> /var/lib/netflow/var/run/p2591.pid -z -T +4 -n flow_host 192.168.1.9
> /var/lib/netflow/profiles-data/live/flow_host
>
> With this nfdump command:
> > nfdump -r
> /var/lib/netflow/profiles-data/live/flow_grn_es/nfcapd.current.* -o
> 'fmt:%sa %dap %fl %byt %nhb %pkt %sas %das' 'host 125.5.5.5'
>
> Prints this out
> > Src IP Addr Dst IP Addr:Port Flows Bytes BGP next-hop IP
> Packets Src AS Dst AS
> > 123.123.123.1 125.5.5.5:0.0 1 84
> 0.0.0.0 1 4808 7629
> > 125.5.5.5 123.123.123.1:0.0 1 84
> 0.0.0.0 1 7629 4808
> > 123.123.123.1 125.5.5.5:0.0 1 84
> 0.0.0.0 1 4808 7629
> > 125.5.5.5 123.123.123.1:0.0 1 84
> 0.0.0.0 1 7629 4808
>
>
> So at some point the nexthop information is lost, and apparently not
> stored into the flow data.
> Can someoen give me some light?
>
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