Re: SNMPv3 works for about an hour and then stops working C490567

>>>>> On Mon, 23 Feb 2009 08:42:50 -0800, Jeff Silverman <[email protected]> said:

JS> I have a dumb question: In section 3.2 of RFC 3414, it says that an
JS> error indication is returned if certain authorization or
JS> authentication steps fail.  Returned to what?  If I understand what I
JS> am reading, if an snmpd gets a poll from an external NMS that is
JS> erroneous in some way, the engine in the snmpd reports the error to
JS> something higher level.  Is this error recorded in some log file in
JS> the net-snmp implementation?  Is there some other way I can see it?

Well, this is where theoretical models (like RFC3414) meets real-world
code (like Net-SNMP).  SNMPv3 is a very modular design, but it wasn't
expected that code follow it perfectly from a
modular-implementation-block-diagram.  RFC3411 sort of explains this.

3414 is just a modular block to the whole SNMPv3 architecture.
The result is supposed to later be processed by the application, etc,
and the proper thing to do is dependent on the message being dealt with
(GET vs SET vs ...).

Net-SNMP logs some types of errors, and not others.  (you can get a lot
more if you run with "-Dusm,vacm").

The client will get some back as well (IE, for an snmpset or snmpget).
-- 
Wes Hardaker
Sparta, Inc.

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