Re: [Cflowd] No data collected (resolved) - Segmentation error

From: Pascal LARHANT (
Date: Tue Apr 08 2003 - 05:05:25 PDT

  • Next message: Pascal Larhant: "[Cflowd] artsprotos doesn't work"
    Hi all !
    My router exported data but data were not collected by cflowdmux. I did a "show ip flow export" and i was sure data were exported.
    In fact it didn't work because I had not given a loopback IP address for my router. I assigned an IP loopback and an IP for the interface, and add them in the configuration file of clowd, and now, I collect data.
    I get arts files from cflowd, but when I edit them with arts++, a segmentation error appears?
    Could you please help me for this new problem ?

    At 10:44 08/04/2003 +0400, you wrote:

    Hello.You must configure your routers for netflow.
    ip flow-export version 5 (recommended and if needed add peer-as)
    ip flow-export destination ip port

    add flow cache on interfaces (all interfacess recommended if you need in/out).

    servocomp unix programmers group.

    >Hi all !
    >As you told me, I did a tcpdump and It seems I don't receive any packet
    >from the router. Messages about cflowd are in /var/log/messages file but I
    >don't really anderstand. Why cflowd doesn't collect packets ?
    >I give in attachment the dump I have done and the /var/log/messages file.
    >Many thanks for your help.
    >At 14:38 04/04/2003 -0500, you wrote:
    >>To figure out if youi are getting flows from the router run tcpdump on your
    >>collector and grep for all packets coming from the router. maybe you can send
    >>this info back to the list if you need help again.
    >>On Friday 04 April 2003 05:46 am, Pascal Larhant wrote:
    >> > Hi all !
    >> > I've installed cflowd on a RedHat 8.0. and when I open @IP.flows.*  files
    >> > with arts+, all data collected are null.
    >> > I don't know how to do for seeing if I'm getting data from routers and if I
    >> > well receive Netflow packets.
    >> > Could you please help me ?
    >> >
    >> > Thanks.
    >> > Pascal
    >> >
    >> > _______________________________________________
    >> > Cflowd mailing list
    >> >
    >> >
    >>Education's purpose is to replace an empty
    >>mind with an open one. - Unknown
    >>Edson Manners
    >>Academic Computing and Network Systems
    >>Florida State University
    >>Cflowd mailing list

    Спам - болезнь Сети. За температурой можно следить на странице мониторинга (

    Pascal LARHANT
    SchlumbergerSema Network & Infrastructure Solution (NIS)
    Network engineer trainee

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