Hi Mark,
thanks for your reply. Well, we managed to find that very MIB, but this one
is not showing the whole amount of addresses of DHCP. I mean, we can see how
many addresses are in use, but we don´t see addresses that are available by
DHCP from the start, i.e. we can´t oversee if the current amount of used
DHCP addresses is too high or too low. Will check it again.
You said snmpcollect (may be) could be used here. Is this snmpcollect a
special command offered by Netview? Is it just a command (binary) or is
there also a kind of GUI available in Netview directly?
Collecting that data and setting thresholds can be done completely in
Netview, i.e. no need of additional Perl scripts?
Many thanks Mark!
best regards,
> Thorsten Mildeberger
>
> EMS Solutions - SMC Tools & Automation
> GOSD - Central Region
> EDS Deutschland GmbH
> Eisenstr. 43
> 65428 Rüsselsheim
> Tel.: +49 (0) 6142 80-3706
> Fax.: +49 (0) 6142 80-3030
> mailto:thorsten.mildeberger@eds.com
-----Ursprüngliche Nachricht-----
Von: Mark_LaFever@cargill.com [mailto:Mark_LaFever@cargill.com]
Gesendet: Donnerstag, 5. Dezember 2002 19:59
An: Mildeberger, Thorsten
Betreff: RE: [nv-l] Monitoring of DHCP
What brand of DHCP are you using? Is it Microsoft DHCP? There may be a
MIB that you can query to see how many addresses are available. If so
you could then set snmpcollect to collect the values and set thresholds
to send arm and rearm traps.
Thanks,
Mark LaFever
Excel Corp.
network analyst
(316)291-2926
-----Original Message-----
From: thorsten.mildeberger@eds.com [mailto:thorsten.mildeberger@eds.com]
Sent: Wednesday, December 04, 2002 9:24 AM
To: nv-l@lists.tivoli.com
Subject: AW: [nv-l] Monitoring of DHCP
Hi Leslie,
thanks for your reply.
I guess, you got me wrong a little due to my bad english :o)
I meant, we would like to monitor the address pool of DHCP servers, i.e.
that very moment the amount of available DHCP addresses drops below a
defined amount of addresses, we would like to be aware of it. Is this
something that can be monitored (made clear) with Netview somehow? Is
the
MIB browser able to write such data directly into a flat file?
Or do we have to look for self-written solution, using SNMP to write
down
flat files that we check "somehow" using a script?
Are there some manuals, is there some special documentation available,
I can
use here?
Netview is installed on solaris servers.
Many thanks, sorry for askign you again, but you´are the only person
that
answered.
best regards,
> Thorsten Mildeberger
>
> EMS Solutions - SMC Tools & Automation
> GOSD - Central Region
> EDS Deutschland GmbH
> Eisenstr. 43
> 65428 Rüsselsheim
> Tel.: +49 (0) 6142 80-3706
> Fax.: +49 (0) 6142 80-3030
> mailto:thorsten.mildeberger@eds.com
-----Ursprüngliche Nachricht-----
Von: Leslie Clark [mailto:lclark@us.ibm.com]
Gesendet: Mittwoch, 4. Dezember 2002 15:03
An: nv-l@lists.tivoli.com
Betreff: Re: [nv-l] Monitoring of DHCP
If you are using Netview on NT, the seedfile lets you define
which address ranges are DHCP. Netview on Unix, however,
can only figure out that a node is DHCP if you also have
dynamic DNS. That is, if it finds a new address that resolves
to a name it already has in the map, and the address it knows
for that node no longer resolves to that name, it will swap out
the interface for the new one. Most customers that I have
worked with do not use dynamic DNS with their DHCP. So
Netview just thinks it is a down interface, until it is reassigned
then it thinks it is the same one come backup. Not good.
So on Unix, I take measures to avoid discovering nodes
in the DHCP address ranges by adding those ranges
as exclusions in the seedfile. Management by avoidance.
Sorry.
Cordially,
Leslie A. Clark
IBM Global Services - Systems Mgmt & Networking
Detroit
"Mildeberger,
Thorsten" To:
nv-l@lists.tivoli.com
<thorsten.mildeberg cc:
er@eds.com> Subject: [nv-l]
Monitoring
of DHCP
12/03/2002 10:30 AM
Hi all,
I´m more or less pretty new to Netview and now got asked to work on DHCP
monitoring done with Tivoli Netview 7.1.x. Does someone here in the
Netview
forum already had the pleasure to do DHCP monitoring using Tivoli
Netview
at
all? If so, it would be great to get some help right from the start.
Many
thanks in advance.
Are there any documents, web pages available that I can use here?
Any help is greatly appreciated.
best regards,
> Thorsten Mildeberger
>
> EMS Solutions - SMC Tools & Automation
> GOSD - Central Region
> EDS Deutschland GmbH
> Eisenstr. 43
> 65428 Rüsselsheim
> Tel.: +49 (0) 6142 80-3706
> Fax.: +49 (0) 6142 80-3030
> mailto:thorsten.mildeberger@eds.com
>
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