Looks like your routers are not including the AS information in the Netflow
packet. What is your router configuration? For some cisco you need 'ip
flow-export version 5 origin-as¹ I think it is ­ as opposed to peer-as. I¹d
be checking the flow data first to confirm you are actually seeing AS
information in the packets and if not, work backwards from there; otherwise,
if the data is in the packet you might need to be checking something
different. Have you tried srcas, nextas , prevas  for the sake of
troubleshooting?

Mark

From:  geebs <gwe...@gmail.com>
Date:  Tuesday, 12 August 2014 12:17 pm
To:  "nfsen-discuss@lists.sourceforge.net"
<nfsen-discuss@lists.sourceforge.net>
Subject:  [Nfsen-discuss] DST AS 0 - no other AS listed

Hello, 

I'm trying to get a list of my networks top destination AS's.
However I'm not getting far, I'm sure it's something I'm not seeing.

All my routers are exporting v5 netflow correctly.

All I see is 100% of traffic to AS 0 ???

Here's the response I get;

** nfdump -M 
/storage/nfsen/profiles-data/live/core2-bri:edge1-syd:edge2-mel:core2-mel:ed
ge1-mel:core1-bri:core1-mel:core1-per:edge2-syd:edge1-bri:core1-syd:core2-pe
r:core2-syd:edge1-per  -T  -r 2014/08/12/nfcapd.201408120000 -n 10 -s
dstas/flows
nfdump filter:
any
Top 10 Dst AS ordered by flows:
Date first seen          Duration Proto            Dst AS    Flows(%)
Packets(%)       Bytes(%)         pps      bps   bpp
2014-08-11 23:54:58.720   600.031 any                   0   270445(100.0)
6.0 M(100.0)    3.4 G(100.0)     9953   45.6 M   573

Summary: total flows: 270445, total bytes: 3.4 G, total packets: 6.0 M, avg
bps: 45.6 M, avg pps: 9953, avg bpp: 573
Time window: 2014-08-11 23:54:58 - 2014-08-12 00:04:58
Total flows processed: 270445, Blocks skipped: 0, Bytes read: 14063784
Sys: 0.100s flows/second: 2704314.8  Wall: 0.099s flows/second: 2728460.5

Thanks for your time.



------------------------------------------------------------------------------
_______________________________________________
Nfsen-discuss mailing list
Nfsen-discuss@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/nfsen-discuss

Reply via email to