[SNMP4J] Sending SNMP Traps using snmp4j

[Alex Chen]

I tried to do the same thing and Frank pointed me to the code in
org.snmp4j.tools.console.SnmpRequest.java.  It is very useful.

Thanks for the great job, Frank.

My current problem is that I want to be able to send the same V2 trap to
different V3 targets.
Each client has its own user and password and authentication protocol,
i.e. MD5/SHA.

I create a TargetContext to wrap each Target with its own Snmp object
with all the user name and authentication stuff.

When I send a trap, I loop through each target context and let the
context gets its own Target and Snmp to send the trap.

If there is only one target, the code works fine as before, regardless
of which target I use.
If there are two targets, I got an
SnmpContants.SNMPv3_USM_UNKNOWN_SECURITY_NAME error even when it tries
to send trap to the first one.

Error while trying to send request: Message processing model 3 returned
error: 1404
org.snmp4j.MessageException: Message processing model 3 returned error:
1404
	at
org.snmp4j.MessageDispatcherImpl.sendPdu(MessageDispatcherImpl.java:420)
	at org.snmp4j.Snmp.sendMessage(Snmp.java:955)
	at org.snmp4j.Snmp.send(Snmp.java:794)
	at org.snmp4j.Snmp.send(Snmp.java:758)

Is what I am trying to do supported in Snmp4j?

-----Original Message-----
From: snmp4j-bounces at agentpp.org [mailto:snmp4j-bounces at agentpp.org] On
Behalf Of Frank Fock
Sent: Monday, April 24, 2006 4:23 PM
To: Dey, Barnali
Cc: snmp4j at agentpp.org
Subject: Re: [SNMP4J] Sending SNMP Traps using snmp4j

Hi DeyB,

To send a SNMPv1 trap you can use the following example
(and/or take a look at the JavaDoc of the Snmp class):

     // set target address
     targetAddress =
 
GenericAddress.parse(System.getProperty("snmp4j.test.targetAddress",
                                                 "udp:127.0.0.1/161"));
     TransportMapping transport;
     if (targetAddress instanceof UdpAddress) {
       transport = new DefaultUdpTransportMapping(new 
UdpAddress("0.0.0.0/12000"));
     }
     else {
       transport = new DefaultTcpTransportMapping();
     }
     snmp = new Snmp(transport);
     USM usm = new USM(SecurityProtocols.getInstance(),
                       new 
OctetString(((MPv3)snmp.getMessageProcessingModel(
       MessageProcessingModel.MPv3)).createLocalEngineID()), 0);
     SecurityModels.getInstance().addSecurityModel(usm);
     transport.listen();

     PDUv1 pdu = new PDUv1();
     pdu.add(new VariableBinding(new OID("1.3.6.1.4.1.4976.99999.1.0"), 
new Counter32(124445334)));
     pdu.add(new VariableBinding(new OID("1.3.6.1.4.1.4976.99999.2.0"), 
new Counter64(12432624566l)));
     pdu.setType(PDU.V1TRAP);
     pdu.setEnterprise(new OID("1.3.6.1.4.1.4976.99999"));
     pdu.setGenericTrap(PDUv1.ENTERPRISE_SPECIFIC);
     pdu.setSpecificTrap(4976);

     CommunityTarget target = new CommunityTarget();
     target.setCommunity(new OctetString("public"));
     target.setAddress(targetAddress);
     target.setVersion(SnmpConstants.version1);

     snmp.send(pdu, target);


Best regards,
Frank

Dey, Barnali wrote:
> Is there any sample code that shows people how to use SNMP4J to send
out
> SNMP traps?
>  
> i.e. how to construct PDU from the MIB and send it out to the
> destination hosts.
>  
> Thanks,
> DeyB
>  
> 
>  
> 
> _______________________________________________
> SNMP4J mailing list
> SNMP4J at agentpp.org
> http://lists.agentpp.org/mailman/listinfo/snmp4j

-- 
AGENT++
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http://www.mibexplorer.com
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