Hi Kusuma,
On 03/11/2009 06:12 AM, kusuma.bm wrote:
Hi all,
i am running snmp agent and sending my snmpv3 inform request
to 'PACT sever' which uses net-snmp-5.2.1.
Manager is sending snmpv3 inform response and then sends the following
error report SNMP-USER-BASED-SM-MIB::usmStatsWrongDigests.0 .
what i observed:
1. Authentication keys on the agent and the manager are same.
In the SNMP there is the concept of the 'authoritative entity'.
For the set of SNMP messages that require a response, the authoritative
entity is the entity that responds. For normal manger to agent
operations (e.g. get, getNext, getBulk, set) the authoritative entity is
the agent. For an inform which is sent by the agent and responded to by
the manager, the authoritative entity is the manager.
Thus, the same password used for manger to agent operations that is used
for an agent to manager operation (only the inform) must yield a
different localized key (kul) due to different authoritative entities
involved.
You will need to configure both the agent sending informs like you are
accustomed to for the manager in normal manager to agent operations, and
configure the manager receiving the informs like you are accustomed to
for the agent side of normal manager to agent operations. Kind of
twisted, and one of the reasons I don't see informs used very often.
2. the authentication protocol used is internal MD5.
Just configure MD5 as the authentication protocol of choice for the
principal used for sending informs. If you are using a command line
tool to send the inform, then you would have some parameters like
snmptrap -Ci -aMD5 -Asomepassphrase -e<EngineIdOfThePactServer>" PACT
{OID TYPE VALUE] ...
3. i am not supporting the privacy(Encryption).
This is fine.
I am unable to trace the problem, are there any logs available to
debug this problem.
How about /var/log/snmpd.log on the agent side?
Hope this helps and let us know how things turn out.
Regards,
Mark
http://EllisonSoftware.com
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