[SNMP4J] No Errors but no results either?

Frank Fock fock at agentpp.com
Wed Aug 25 22:43:11 CEST 2010


Maybe you should first read the RFCs. Then you can answer
your question yourself.

Frank

On 25.08.2010 22:18, James Prickett wrote:
> Sounds good.  I can do that.  Where in the API is this REPORT represented?  Is there an example somewhere in the Javadoc?
>
> Regards,
> James
>
> -----Original Message-----
> From: snmp4j-bounces at agentpp.org [mailto:snmp4j-bounces at agentpp.org] On Behalf Of Frank Fock
> Sent: Wednesday, August 25, 2010 4:12 PM
> To: snmp4j at agentpp.org
> Subject: Re: [SNMP4J] No Errors but no results either?
>
> James,
>
> You get an REPORT which indicates the error.
> See the SNMPv3 standard for more details.
>
> Best regards,
> Frank
>
> On 25.08.2010 22:08, James Prickett wrote:
>> 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);
>> 		}
>>
>> 	}
>>
>> }
>>
>>
>> _______________________________________________
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>> SNMP4J at agentpp.org
>> http://lists.agentpp.org/mailman/listinfo/snmp4j
>

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