AW: Antwort: AW: Antwort: Re: strange ICMP - packets from node

From: Sippel, Christian (Christian.Sippel@IZB.DE)
Date: Fri Jun 27 2003 - 02:55:41 EDT


Good morning,
I think it's
/usr/sbin/no -o tcp_pmtu_discover=0
/usr/sbin/no -o udp_pmtu_discover=0

I would venture to say that you can savely give it a try (and then have a
look with iptrace / ipreport for icmp packets)

HTH, Christian

> ----------
> Von: fmu@OERAG.DE[SMTP:fmu@OERAG.DE]
> Antwort an: IBM AIX Discussion List
> Gesendet: Donnerstag, 26. Juni 2003 18:41
> An: aix-l@Princeton.EDU
> Betreff: Antwort: AW: Antwort: Re: strange ICMP - packets from node
>
> Hi Christian,
>
> what is this exact for an no option? I don't find this with the command
> 'no
> -a'.
>
> Or is this 'pmtu_rediscover_interval' ???
>
> Frank
>
>
>
>
>
> "Sippel, Christian" <Christian.Sippel@IZB.DE>@Princeton.EDU> on 26.06.2003
> 17:50:42
>
> Bitte antworten an IBM AIX Discussion List <aix-l@Princeton.EDU>
>
> Gesendet von: IBM AIX Discussion List <aix-l@Princeton.EDU>
>
>
> An: aix-l@Princeton.EDU
> Kopie:
>
> Thema: AW: Antwort: Re: strange ICMP - packets from node
>
>
> It might sound strange but I can remember I had a similar problem quite a
> while ago and as far as I can remember I turned off Path-MTU-discovery (a
> kernel network option, the no-command) - Just a thought, and, as I said,
> it
> might sound strange...
>
> Christian
>
> > ----------
> > Von: fmu@OERAG.DE[SMTP:fmu@OERAG.DE]
> > Antwort an: IBM AIX Discussion List
> > Gesendet: Donnerstag, 26. Juni 2003 17:40
> > An: aix-l@Princeton.EDU
> > Betreff: Antwort: Re: strange ICMP - packets from node
> >
> > Hi *,
> >
> > Tim: no crontabs, no jobs
> >
> > Bill: no HACMP
> >
> > Is it possible to trace the IP-traffic and find so the source?
> >
> > Best regards,
> > Frank
> >
> >
> >
> >
> >
> > Bill Verzal <BVerzal@KOMATSUNA.COM>@Princeton.EDU> on 26.06.2003
> 17:29:31
> >
> > Bitte antworten an IBM AIX Discussion List <aix-l@Princeton.EDU>
> >
> > Gesendet von: IBM AIX Discussion List <aix-l@Princeton.EDU>
> >
> >
> > An: aix-l@Princeton.EDU
> > Kopie:
> >
> > Thema: Re: strange ICMP - packets from node
> >
> >
> > Is this one or more HACMP clusters or an SP?
> >
> > BV
> > --------------------------------------------------------
> >
> > Bill Verzal
> > AIX Administrator, Komatsu America
> > (847) 970-3726 - direct
> > (847) 970-4184 - fax
> >
> >
> > |---------+---------------------------->
> > | | Tim Brumfield |
> > | | <BRUMFIT@DFA.STAT|
> > | | E.MS.US> |
> > | | Sent by: IBM AIX |
> > | | Discussion List |
> > | | <aix-l@Princeton.|
> > | | EDU> |
> > | | |
> > | | |
> > | | 06/26/2003 10:07 |
> > | | AM |
> > | | Please respond to|
> > | | IBM AIX |
> > | | Discussion List |
> > | | |
> > |---------+---------------------------->
> > >
> >
> >
> --------------------------------------------------------------------------
> > -----------------------------------------------------|
> >
> > |
> > |
> > | To: aix-l@Princeton.EDU
> > |
> > | cc:
> > |
> > | Subject: Re: strange ICMP - packets from node
> > |
> > >
> >
> >
> --------------------------------------------------------------------------
> > -----------------------------------------------------|
> >
> >
> >
> >
> > You may want to look at your crontabs to see if the process is scheduled
> > there.
> >
> > >>> fmu@OERAG.DE 6/26/2003 9:10:56 AM >>>
> > Hi *,
> >
> > on of our nodes send all 10 minutes ICMP-Packets to an IP-Adress (it
> > shows
> > as a ping to the IP-Adress). We observe this in our network
> > monitoring.
> > But I cannot find anything in my process list. I check the process
> > list
> > every second without success.
> >
> > What is the way to trace this so that I can find the command or
> > process
> > which start the ping?
> >
> >
> > Best regards,
> > Frank Mueller
> >
>



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