[SNMP4J] Broadcasting via SNMPv3 doesn't work properly

[Vm]

hope this may help you
[CODE]

package com.s7.admintools;

import java.util.Vector;

import org.snmp4j.CommunityTarget;
import org.snmp4j.Snmp;
import org.snmp4j.smi.VariableBinding;
import org.snmp4j.smi.OID;
import org.snmp4j.event.ResponseEvent;
import org.snmp4j.PDU;
import org.snmp4j.event.ResponseListener;

public class SNMPBroadcast {
    Vector<String> broadcastList = new Vector<String>();

    /**
     * @cons
     */
    public SNMPBroadcast() {

    }

    /**
     * This method is to broadcast SNMP Request and collect the list of 
ipAddress
     * @return broadcastList
     */
    public Vector<String> broadCast() {
        try {

            Snmp snmp = AdminToolsCommon.createSnmp();
            snmp.listen();

            CommunityTarget target = AdminToolsCommon
                    .createNewTarget(AdminToolsCommon
                            .getBroadcastTargetAddress());

            PDU command = AdminToolsCommon.createNewPDU();
            command.add(new VariableBinding(new OID(new int[] { 1, 3, 6, 
1, 2,
                    1, 1, 1, 0 })));

            snmp.send(command, target, null, new ResponseListener() {
                public void onResponse(ResponseEvent event) {
                    String[] ipAddress;
                    // only if machine is windows
                    if 
(event.getResponse().toString().contains("Windows")) {
                        ipAddress = event.getPeerAddress().toString()
                                .split("/");
                        broadcastList.add(ipAddress[0]);
                        ipAddress = null;
                    }
                }
            });

            Thread.sleep(1000);

        } catch (Exception e) {
            // TODO:
        } finally {
        }

        return broadcastList;
    }

} // End of Broadcast

[/CODE]

Dmitriy Dubovoy wrote:
>  
>
> Hello,
>
>  
>
> Please help me,
>
>  
>
> I tried to send broadcast snmp request using SNMPv3 but always I received
> only one response.
>
> Please look at the my code below:
>
>  
>
> try {
>
>             ThreadPool tp = ThreadPool.create("Asynchronous SNMP Adaptor
> Thread", 3);
>
>             MultiThreadedMessageDispatcher mtmd = new
> MultiThreadedMessageDispatcher(tp, new MessageDispatcherImpl());
>
>             mtmd.addMessageProcessingModel(new MPv1());
>
>             mtmd.addMessageProcessingModel(new MPv2c());
>
>             mtmd.addMessageProcessingModel(new MPv3());
>
>             mtmd.addCommandResponder(this);
>
>             
>
>             DefaultUdpTransportMapping defaultTransport = new
> DefaultUdpTransportMapping();
>
>             defaultTransport.setReceiveBufferSize(65535);
>
>             TransportMapping transport = defaultTransport;
>
>             mtmd.addTransportMapping(transport);
>
>             
>
>             USM usm = new USM(SecurityProtocols.getInstance(),
>
>                     new OctetString(MPv3.createLocalEngineID()), 0);
>
>             SecurityModels.getInstance().addSecurityModel(usm);
>
>             
>
>             OctetString securityName = new OctetString("admin");
>
>  
>
>             UsmUser usmUser = new UsmUser(securityName, 
>
> AuthMD5.ID, 
>
> new OctetString("adminadmin"),
>
>                   PrivDES.ID,
>
>                   new OctetString("adminadmin"));
>
>                   
>
>             snmp.getUSM().addUser( securityName, usmUser);
>
>             
>
>             transport.addTransportListener(mtmd); // addMessageDispatcher()
> was deprecated in 1.7.4a.
>
>  
>
>             transport.listen();
>
>                   
>
>             // create the PDU
>
>                 ScopedPDU pduScoped = new ScopedPDU();
>
>                 
>
>                 //Fill scoped pdu parameters
>
>                 logger.debug("asyncsend_v3(): Fill scoped pdu parameters ");
>
>                 pduScoped.setType(PDU.GET);
>
>                 pduScoped.add(new VariableBinding(new
> OID("1.3.6.1.2.1.2.2.1.10"))); //for example
>
>             
>
>                 //set SecurityLevel
>
>                 int securityLevel = snmpTarget.getSecurityLevel();
>
>                 
>
> Address targetAddress = GenericAddress.parse("10.10.255.255/161");
>
>                   PduHandle reqHandle = mtmd.sendPdu(null, targetAddress,
> SnmpConstants.version3,
>
>                               SecurityModel.SECURITY_MODEL_USM,
> securityName.getValue(),
>
>                               SecurityLevel.NOAUTH_NOPRIV, pduScoped, true);
>
>          } catch (IOException e) {
>
>             logger.error("asyncsend(): Error sending async message. " + e);
>
>             throw e;
>
>          } catch (Exception e){
>
>             logger.error("asyncsend(): Error sending async message. " + e);
>
>          }
>
>  
>
> ...
>
>  
>
> public void processPdu(CommandResponderEvent e) {
>
>                                 PDU responsePdu = e.getPDU();
>
>                                 if (responsePdu == null)
>
>                                                 return;
>
>                                 
>
>                                 /*
>
>                                 if (responsePdu.getType() != PDU.RESPONSE)
>
>                                                 return;
>
>                                 
>
>                                 Integer32 int32 =
> responsePdu.getRequestID();
>
>                                 if (int32.getValue() == 0)
>
>                                                 return;
>
>                                 */
>
>  
>
>  
>
>                                 PduHandle pduHandle = e.getPduHandle();
>
>                                  e.getPeerAddress();
>
>  
>
>                                 } catch (Exception exception) {
>
>                                 }
>
>                 }
>
>  
>
> After executing the first part of code I receives only one
> CommandResponderEvent. 
>
> The same code for SNMP v1 works fine, I receives responses from all my
> devices:
>
>  
>
> ThreadPool tp = ThreadPool.create("Asynchronous SNMP Adaptor Thread", 3);
>
>             MultiThreadedMessageDispatcher mtmd = new
> MultiThreadedMessageDispatcher(tp, new MessageDispatcherImpl());
>
>             mtmd.addMessageProcessingModel(new MPv1());
>
>             mtmd.addMessageProcessingModel(new MPv2c());
>
>             mtmd.addMessageProcessingModel(new MPv3());
>
>             mtmd.addCommandResponder(this);
>
>             
>
>             DefaultUdpTransportMapping defaultTransport = new
> DefaultUdpTransportMapping();
>
>             defaultTransport.setReceiveBufferSize(65535);
>
>             TransportMapping transport = defaultTransport;
>
>             mtmd.addTransportMapping(transport);
>
>             // transport.addMessageDispatcher(mtmd);
>
>             transport.addTransportListener(mtmd);
>
>  
>
> transport.listen();
>
>                                 
>
> Address targetAddress = GenericAddress.parse("10.10.255.255/161");
>
>  
>
>                                 PduHandle reqHandle = mtmd.sendPdu(null,
> targetAddress, SnmpConstants.version1,
>
>  
> SecurityModel.SECURITY_MODEL_SNMPv1, new OctetString("public") .getValue(),
>
>  
> SecurityLevel.NOAUTH_NOPRIV, pdu, true);
>
>                                 
>
>  
>
> All devices supports SNMPv3 and set up by the same settings.
>
> Could anyone help me to receive all responses? What I do incorrectly?
>
>  
>
> Please help me!
>
>  
>
> Thanks,
>
> Dmitriy
>
>  
>
>  
>
>  
>
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