Checked the latest documentation to make sure but Spectrum doesn't support v3
informs; (9.2.1.006) Event Configuration User Guide.
SNMPv2 Support
CA Spectrum supports the receipt and processing of SNMPv2 format InformRequests
and traps as defined by RFC 2576, ―Coexistence between Version 1, Version 2,
and Version 3 of the Internet-Standard Network Management Framework.‖
InformRequest Support
When CA Spectrum receives an SNMPv2 InformRequest, it is decoded and converted
to SNMPv1 format as specified in RFC 2576. A response to the InformRequest is
generated and sent back to the inform originator.
RFC2576 is Obsoleted by by RFC3584. Check page 26-27 for details of how an
incoming request should be processed. It references the snmpEngineID.
This is from RFC3584 (page 27)
The parameters returned from the Community-Based Security Model are:
- The securityEngineID, which will always be the local value of
snmpEngineID.0.
Hope this helps.
-----Original Message-----
From: Kenneth Kirchner [mailto:[email protected]]
Sent: Tuesday, 24 January 2012 10:30 AM
To: spectrum
Subject: Re: [spectrum] SNMP V3 Inform traps
I tried enabling SNMPv3 Informs on our Cisco devices for our v9.2H03 Spectrum
servers and it looked like Spectrum had no idea what to do with them. I had to
switch back to regular traps. I could have been my config, but I just thought
I'd put that out there.
-K
On Jan 23, 2012, at 9:42 AM, Lemmermann, Jan wrote:
> I think what he meant is the snmpEngineID that Spectrum uses. Since
> Informs need to be acknowledged from the Management Station you need
> to specify the Management Station's engineID so that the device knows the
> acknowledgment came from the correct device.
>
> In the past when Spectrum was using an independent SNMPdamon/proxy
> there was a config-file for this information. But that is history.
>
> I'm not even sure if the current release supports SNMPv3 Informs anyway.
> Couldn't find any statements in the docs.
>
> What you could try is to run tcpdump on the SpectroSERVER while
> forcing the device to send out an Inform and then take a look what the SS is
> doing. Does it try to ACK the inform?
> If yes you should see the engineID in the dump.
>
> Regards,
> Jan
>
>
> -----Ursprüngliche Nachricht-----
> Von: Hilmar Preuße [mailto:[email protected]]
> Gesendet: Montag, 23. Januar 2012 14:33
> An: spectrum
> Betreff: Re: [spectrum] WG: SNMP V3 Inform traps
>
> On 23.01.2012 09:26, Hofmann, Berthold wrote:
>
> Hi,
>
>> We have the problem, on enterasys devices must a engineid defined,
>> but what is the value in spectrum, which must defined on the
>> enterasys switches.
>>
> The engine_ID must be unique in your network, there are no other limitation.
> Spectrum will learn it from the device.
>
> RfC 2571
>
> 3.1.1.1. snmpEngineID
>
> Within an administrative domain, an snmpEngineID is the unique and
> unambiguous identifier of an SNMP engine. Since there is a one-to-one
> association between SNMP engines and SNMP entities, it also uniquely
> and unambiguously identifies the SNMP entity within that
> administrative domain. Note that it is possible for SNMP entities in
> different administrative domains to have the same value for
> snmpEngineID. Federation of administrative domains may necessitate
> assignment of new values.
>
> H.
> --
> amasol Kundentag, 29. März 2012, Campus Neue Balan
>
> Hilmar Preuße amasol AG
> Senior Consultant Campus Neue Balan
> Tel +49 89 1894743-18 Claudius-Keller-Straße 3b
> Fax +49 89 1894743-99 D-81669 München
> eMail [email protected] http://www.amasol.de/
>
> amasol Aktiengesellschaft für Informations- und
> Kommunikationstechnologie
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> Johann Maurer
> Amtsgericht München HRB 128327, Sitz der Gesellschaft München
>
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