[SNMP4J] How to send a V2 trap?

[jo at atsresults.com]

Hey Everyone,

I am very new to SNMP and SNMP4j so please bear with me.

I am trying to write a simple app that will send a v2 trap to a specific host
and port.  I seem to have gotten the V3 to work but when I try send a v2, I get
an exception.

If anyone could help me out, it would be fantastic.

Thanks

J.O.



public void sendSNMPTrap() throws Exception
{
   try 
   {
			
     Address targetAddress = GenericAddress.parse("udp:127.0.0.1/162");
     TransportMapping transport = new DefaultUdpTransportMapping();             
                                           
     Snmp snmp = new Snmp(transport);
     MPv2c mpv2c =
(MPv2c)snmp.getMessageProcessingModel(MessageProcessingModel.MPv2c);
     USM usm = new USM(SecurityProtocols.getInstance(), new
OctetString("98GTP"), 0);

		   
     SecurityModels.getInstance().addSecurityModel(usm);
			
			
     // create the target
     UserTarget target = new UserTarget();
     target.setAddress(targetAddress);
     target.setRetries(1);
     target.setTimeout(5000);
     target.setVersion(SnmpConstants.version2c);
			
     // create the PDU
     PDU pdu = new ScopedPDU();
     pdu.add(new VariableBinding(new OID("1.3.6")));		     
     pdu.setType(PDU.TRAP);
	
     // send the PDU
     snmp.notify(pdu, target);
   }
   catch (Exception e)
   {
	System.err.println("Exception: "+e.getMessage());
	e.printStackTrace();	
   }
		
}


 MPv2c used with unsupported security model
Exception: Message processing model 1 returned error: -1402
org.snmp4j.MessageException: Message processing model 1 returned error: -1402
	at org.snmp4j.MessageDispatcherImpl.sendPdu(MessageDispatcherImpl.java:390)
	at org.snmp4j.Snmp.sendMessage(Snmp.java:859)
	at org.snmp4j.Snmp.send(Snmp.java:712)
	at org.snmp4j.Snmp.send(Snmp.java:676)>>>>>>>>>>>>>>>>> TEARING DOWN
<<<<<<<<<<<<<<<<<<<<<

	at org.snmp4j.Snmp.notify(Snmp.java:617)
	at com.q1abs.semsources.cre.SNMPTrapSender.testSNMP(SNMPTrapSender.java:109)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at junit.framework.TestCase.runTest(TestCase.java:154)
	at junit.framework.TestCase.runBare(TestCase.java:127)
	at junit.framework.TestResult$1.protect(TestResult.java:106)
	at junit.framework.TestResult.runProtected(TestResult.java:124)
	at junit.framework.TestResult.run(TestResult.java:109)
	at junit.framework.TestCase.run(TestCase.java:118)
	at junit.framework.TestSuite.runTest(TestSuite.java:208)
	at junit.framework.TestSuite.run(TestSuite.java:203)
	at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:474)
	at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:342)
	at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:194)