[SNMP4J] SNMP agent implementation

[Pankaj Arora]

Thanks for the reply.
We are registered with IANA and have our Mib's in hand. I also know
specific Oid's I have to reply to. 

I believe that
TestAgent.java(snmp4j-agent/src/org/snmp4j/agent/test/TestAgent.java)
available as code example in snmp4j-agent implementation has a starting
point to write an agent. It gives gives a sample implementation of the
agent. I am trying to hook my code in this as when I configure SNMP to
forward the requests to this sub-agent it reaches here. My aim is to
reply to the requests reaching here with right information. I am not
sure how to do this. Why I need agentPro here?
Can you give some more insight on that?
After putting this mail to group I wrote a custom command Responder and
added it to the TestAgent and now requests are dispatched to my
processRequest method in the commandResponder. I am not sure how to
construct the right reply for the request. Is there any example on how
to prepare the right reply for requests coming in and how to put your
text in that reply?
Aim is to get some oid's request in the sub-agent and reply in right
format and with some custom information.

Thanks,
Pankaj Arora



-----Original Message-----
From: Senthil Muniswamy [mailto:senthil.muniswamy at gmail.com] 
Sent: Friday, May 15, 2009 10:27 PM
To: Pankaj Arora
Cc: snmp4j
Subject: Re: [SNMP4J] SNMP agent implementation

Pankaj,

All you need is an SNMP Agent implementation and not the Proxy
Forwarder.

1) Get familiar with SNMP Protocol & MIBs.
2) Register with IANA for enterprise number if your employer don't
have one already.
3) Find out the information that you want to expose from the Java
application.
3) Define them in MIBs. Tools like MIB Designer
http://www.mibdesigner.com will help you write easily
4) Use AgenPro http://www.agentpp.com/agen/agen.html to generate the
SNMP4J code for the MIBs
5) Implement the generated methods i.e. call the Java application

HTH.

On Fri, May 15, 2009 at 6:38 PM, Pankaj Arora <parora at castiron.com>
wrote:
> To give more details:
> I'm writing a SNMP agent. The agent is getting GET requests from
> external
> SNMP compliant program. My agent should process the request (using the
> OID)
> and call another external program (written in java) to fetch this
> requested
> data. Then the agent should return this data to the SNMP compliant
> program
> which requested the data, using the response process.
> I am able to get the request forwarded to the TestAgent provided. I am
> not able to figure out how to hook responder so that for particular
> oid's I can use my code?
> Please give me some pointers.
>
> -----Original Message-----
> From: snmp4j-bounces at agentpp.org [mailto:snmp4j-bounces at agentpp.org]
On
> Behalf Of Pankaj Arora
> Sent: Friday, May 15, 2009 10:50 AM
> To: snmp4j at agentpp.org
> Subject: [SNMP4J] SNMP agent implementation
>
> Hi,
>
> I am new to SNMP development. I have a requirement to create a proxy
> agent which gets the requests forwarded from SNMP and replies to them.
I
> took the TestAgent example provided in snmp4j-agent package and ran
it.
> I am at stage where when I do snmpWalk the request are getting
forwarded
> to the TestAgent class, but I am not sure how to hook my code to reply
> to those requests. Can anyone of you provide some tutorials or
> instructions on how to proceed on this?
>
>
>
> Thanks,
>
> Pankaj Arora
>
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