[SNMP4J] No Errors but no results either?

[James Prickett]

When I run my code below, this is what I get in the response.getResponse() string:

<snip>
	REPORT[reqestID=1745013846, errorStatus=0, errorIndex=0, VBS[1.3.6.1.6.3.15.1.1.3.0 = 23]]
</snip>

Note that the number 23 is incremented and requested changes with each subsequent execution of the code

So my problem is this:  I don't get an error back in the response, yet I don't see anything happening on my switch either (it should be turning off port Gi0/8))

I would be most grateful to whomever can take a look at my code and tell me what I'm doing wrong!  :)

Regards,
James





CODE
----------------
package example;

import java.io.IOException;

import org.snmp4j.PDU;
import org.snmp4j.ScopedPDU;
import org.snmp4j.Snmp;
import org.snmp4j.TransportMapping;
import org.snmp4j.UserTarget;
import org.snmp4j.event.ResponseEvent;
import org.snmp4j.mp.MPv3;
import org.snmp4j.mp.MessageProcessingModel;
import org.snmp4j.mp.SnmpConstants;
import org.snmp4j.security.AuthMD5;
import org.snmp4j.security.PrivDES;
import org.snmp4j.security.SecurityLevel;
import org.snmp4j.security.SecurityModel;
import org.snmp4j.security.SecurityModels;
import org.snmp4j.security.SecurityProtocols;
import org.snmp4j.security.USM;
import org.snmp4j.security.UsmUser;
import org.snmp4j.smi.Address;
import org.snmp4j.smi.GenericAddress;
import org.snmp4j.smi.OID;
import org.snmp4j.smi.OctetString;
import org.snmp4j.smi.UdpAddress;
import org.snmp4j.smi.VariableBinding;
import org.snmp4j.transport.DefaultUdpTransportMapping;

/**
 * @author James Prickett
 * 
 */
public class SnmpExample {

	// private static final OctetString UP = new OctetString("1");
	private static final OctetString DOWN = new OctetString("2");

	/**
	 * @param args
	 *          The command-line arguments
	 */
	public static void main(String[] args) {

		PDU pdu = new ScopedPDU();
		pdu.setType(PDU.SET);
		pdu.add(new VariableBinding(new OID("1.3.6.1.2.1.2.2.1.7"), new OctetString("Gi0/8")));
		pdu.add(new VariableBinding(new OID("1.3.6.1.2.1.2.2.1.7"), DOWN));

		UserTarget target = new UserTarget();
		target.setAddress(new UdpAddress("10.10.0.2/16"));
		target.setVersion(SnmpConstants.version3);
		target.setRetries(1);
		target.setTimeout(500);
		target.setSecurityLevel(SecurityLevel.AUTH_NOPRIV);
		target.setSecurityName(new OctetString("MD5DES"));
		target.setSecurityModel(SecurityModel.SECURITY_MODEL_USM);

		try {
			Snmp snmp = new Snmp(new DefaultUdpTransportMapping());
			snmp.listen();
		   TransportMapping transport = new DefaultUdpTransportMapping();
		   snmp = new Snmp(transport);
		   USM usm = new USM(SecurityProtocols.getInstance(),
		                     new OctetString(MPv3.createLocalEngineID()), 0);
		   SecurityModels.getInstance().addSecurityModel(usm);
		   transport.listen();
			
			snmp.getUSM().addUser(new OctetString("MD5DES"),
          new UsmUser(new OctetString("MD5DES"),
                      AuthMD5.ID,
                      new OctetString("MD5DESUserAuthPassword"),
                      PrivDES.ID,
                      new OctetString("MD5DESUserPrivPassword")));
			
			ResponseEvent response = snmp.send(pdu, target);
			if (response.getResponse() != null) {
				System.out.println(response.getResponse().toString());
			} else {
				System.out.println(response.getError().getMessage());
			}
		} catch (IOException e) {
			e.printStackTrace();
			System.exit(99);
		}

	}

}