[SNMP4J] MPv1 used with unsupported security model

[Martin Di Bella]

Hi:

I'm trying to use snmp4j. When I run the program, get this message:
"MPv1 used with unsupported security model". Thanks.

Martin

** The stack trace print **

org.snmp4j.MessageException: Message processing model 0 returned error:
-1402
	at
org.snmp4j.MessageDispatcherImpl.sendPdu(MessageDispatcherImpl.java:354)
	at org.snmp4j.Snmp.send(Snmp.java:356)
	at org.snmp4j.Snmp.sendPDU(Snmp.java:292)
	at SNMPTest.main(SNMPTest.java:72)


** The code **

public class SNMPTest {

	public static void main(String[] args) {
			// Create target
			UserTarget target = new UserTarget();
			UdpAddress address = new UdpAddress();
			address.setPort(161);
			try {
				address.setInetAddress(InetAddress.getByName("192.168.0.40"));
			} catch (UnknownHostException e) {
				e.printStackTrace();
				return;
			}
			target.setAddress(address);
			
			// Create udp - Default pdu type is get
			PDU request = new ScopedPDU();
			request.add( new VariableBinding(SnmpConstants.sysDescr));
		
			// Create snmp
			Snmp snmp = null; 
			try {
				snmp = new Snmp(new DefaultUdpTransportMapping());
			} catch (IOException e1) {
				e1.printStackTrace();
				return;
			}

			// Message processing and security
			MPv3 mp =(MPv3)
snmp.getMessageProcessingModel(MessageProcessingModel.MPv3);
			USM usm = new USM(SecurityProtocols.getInstance(), new
OctetString(mp.createLocalEngineID()), 0);
			SecurityModels.getInstance().addSecurityModel(usm);

			// Send request
			PDU response = null;
			try {
				response = snmp.sendPDU(request, target);
			} catch (MessageException me) {
				System.out.println(me.getStatusInformation());
				me.printStackTrace();
				return;
			} catch (IOException e) {
				e.printStackTrace();
				return;
			}
		
			// Process response
			if (response == null) {
				System.out.println("time out");
			} else {
				VariableBinding vb = response.get(0);
				System.out.println(vb);
			}		
	}
}