Hi Dejan,
many thanks for that.
I already found some infromation about the snmpCollect. Just to speed up the
whole thing, can you let me know which redboook to catch regarding the MIB
expressions?
Many thanks Dejan.
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 AT eds DOT com
-----Ursprüngliche Nachricht-----
Von: Dejan Mijailovic [mailto:dejan.mijailovic AT inquent DOT com]
Gesendet: Freitag, 6. Dezember 2002 18:03
An: Mildeberger, Thorsten; nv-l AT lists.tivoli DOT com
Betreff: RE: [nv-l] Monitoring of DHCP
Torsten,
That is easy... You will need the snmpCollect to do that.
You don't need the MIB object for the total amount of IPs in the pool.
Upon configuring you DHCP, you know what you IP range is...right? If your
range is from 10.0.0.0 to 10.0.0.255, that means you have 255 IPs available
for your Desktops.
So, you will have to use snmpCollect and write MIB Expression in postfix:
"255 OID.for.total.IPs.InUse. -" . And that is your "Available IP addresses"
number.
You must read about SnmpCollect daemon and MIB expressions in order to
implement this.
Dejan Mijailovic
InQuent Technologies Inc.
> -----Original Message-----
> From: Mildeberger, Thorsten [mailto:thorsten.mildeberger AT eds DOT com]
> Sent: Friday, December 06, 2002 4:58 AM
> To: nv-l AT lists.tivoli DOT com
> Subject: WG: [nv-l] Monitoring of DHCP
>
>
> 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 AT eds DOT com
>
>
> -----Ursprüngliche Nachricht-----
> Von: Mark_LaFever AT cargill DOT com [mailto:Mark_LaFever AT cargill DOT 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 AT eds DOT com [mailto:thorsten.mildeberger AT eds
> DOT com]
> Sent: Wednesday, December 04, 2002 9:24 AM
> To: nv-l AT lists.tivoli DOT 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 AT eds DOT com
>
>
> -----Ursprüngliche Nachricht-----
> Von: Leslie Clark [mailto:lclark AT us.ibm DOT com]
> Gesendet: Mittwoch, 4. Dezember 2002 15:03
> An: nv-l AT lists.tivoli DOT 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 AT lists.tivoli DOT com
> <thorsten.mildeberg cc:
>
> er AT eds DOT 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 AT eds DOT com
> >
>
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