[AGENT++] About V3 Inform

[Santosh Akhilesh]

Dear Frank ,
I have studied the output message and find something which may be the
reason:
	According to the SNMPv3 protocol,the engine id of the inform should
be the engine id of the receiver.So before it send an inform,the SNMP++ will
try to find the engine id of the receiver.It is just a normal engine id
discovery process,but the result of 3rd party MIBBrowser and SNMP++ reciever
are different.
	For example we want to send a inform to 1.1.1.1:999,then we first
send a request to 1.1.1.1:999 to find the engine id and the receiver will
return a report to tell us the engine id.The report sent back are diffrent
between the MIBBrowser and the SNMP++ receiver.The SNMP++ receiver will send
the report with the port it receive the inform(999).then the engine id will
be add to the engine id table with the key 1.1.1.1:999,then we can use this
engine id to send the inform.The MIBBrowser will return the report using
diffrent port(for example 1000),then the engine id will be add to the engine
id table with the key 1.1.1.1:1000,and when we want to send the inform we
find that we still can not find the engine id for 1.1.1.1:999 and will cause
a problem.
Regards,
Santosh Akhilesh


-----Original Message-----
From: Frank Fock [mailto:fock at agentpp.com] 
Sent: Thursday, September 28, 2006 5:20 AM
To: Santosh Akhilesh
Cc: 'agentpp'
Subject: Re: [AGENT++] About V3 Inform

Hi Santosh,

I would assume that it is a USM configuration problem.
With informs the inform receiver is the authoritative
engine. That is different to sending traps.
Why it works with SNMP++ could be caused by the engine ID
and/or USM configuration being accidentally the same
as at the agent.

Best regards,
Frank

Santosh Akhilesh wrote:
> Dear All ,
> 
> I have a SNMP Agent using Agent++ 3.5.26 and SNMP++ 3.2.20.
> 
> If my agent sends V3 Informs it is not received by MG Soft MIB browser but
> it is received if I write a Inform Listener using SNMP++.
> 
> Did anyone face such problem and if yes what is the reason and possible
> solution.
> 
> Regards,
> 
> Santosh Akhilesh
> 
> Ph: 9845482201
> 
>
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