[SNMP4J] Process PDU not catching messages

[Frank Fock]

Hi Donna,

Use the Snmp.addNotificationListener instead to process
notifcations and traps. For INFORMs, SNMP4J will send
the response, because this is required by the SNMP standard.

Best regards,
Frank

Donna Griffin wrote:
> Hi there,
> 
> I have created a listener class called trapDump that implements the
> commandResponder interface and adds the unimplemented method,
> processPDU. However when the class recieves a trap or inform message
> it automatically generates a response message to the sender but does
> not print the print out statements in the method.
> 
> Please find the code attached below@
> 
> 
> private void registerForTraps(int port, String community, int version)
> 	throws IOException
> 	
> 	{    	
> 	AbstractTransportMapping transport;
> 		
> 		address=GenericAddress.parse("udp:127.0.0.1/" + port);
> 	    if (address instanceof TcpAddress) {
> 	      transport = new DefaultTcpTransportMapping((TcpAddress) address);
> 	    }
> 	    else {
> 	      transport = new DefaultUdpTransportMapping((UdpAddress) address);
> 	    }
> 	    ThreadPool threadPool =
> 	        ThreadPool.create("DispatcherPool", numDispatcherThreads);
> 	    MessageDispatcher mtDispatcher =
> 	        new MultiThreadedMessageDispatcher(threadPool, new
> MessageDispatcherImpl());
> 	
> 	    // add message processing models
> 	    mtDispatcher.addMessageProcessingModel(new MPv1());
> 	    mtDispatcher.addMessageProcessingModel(new MPv2c());
> 	    mtDispatcher.addMessageProcessingModel(new MPv3(localEngineID.getValue()));
> 
> 	    // add all security protocols
> 	    SecurityProtocols.getInstance().addDefaultProtocols();
> 
> 	    Snmp snmp = new Snmp(mtDispatcher, transport);
> 	    if (version == SnmpConstants.version3) {
> 	      USM usm = new USM(SecurityProtocols.getInstance(), localEngineID, 0);
> 	      SecurityModels.getInstance().addSecurityModel(usm);
> 	      if (authoritativeEngineID != null) {
> 	        snmp.setLocalEngine(authoritativeEngineID.getValue(), 0, 0);
> 	      }
> 	      // Add the configured user to the USM
> 	      snmp.getUSM().addUser(new OctetString(securityName), new
> UsmUser(new OctetString(securityName),
> 					authType,
> 					new OctetString(authPassword),
> 					privType,
> 					new OctetString(privPassword)));	    }
> 	    else {
> 	      CommunityTarget target = new CommunityTarget();
> 	      target.setCommunity(new OctetString(community));
> 	      this.target = target;
> 	    }
> 		
> 	
> 	    snmp.addCommandResponder(this);
> 	    transport.listen();
> 	    System.out.println("Listening on "+address);	
> 	}
> 
> 
> public void processPdu(CommandResponderEvent arg0) {
> 		// TODO Auto-generated method stub
> 		System.out.println("inside processPdu..." + arg0.getPDU());
> 	}
> 
> What I would expect now is that when the agent recieves the trap or
> INFORM message the processPDU method would be called but it is not. I
> also ran the examples that came with the distribution and the
> statements in the processPDU method is not called there either Can you
> help me please!
> 
> Regards,
> Donna
> _______________________________________________
> SNMP4J mailing list
> SNMP4J at agentpp.org
> http://lists.agentpp.org/mailman/listinfo/snmp4j

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