[SNMP4J] Unknown engine ID

[Frank Fock]

Hi Marcel,

You need to choose a different engine ID
as the agent, that's all.

Best regards,
Frank

On 27.11.2010 22:57, Marcel Bassuener wrote:
> Hi,
> I have a problem. I wrote an SNMP Agent, which works (I tested it with
> an other programm).  But now I tried to write my own manager and send
> messages. Every time I start it the agent says: (Unknown engine ID)
>
> 3283585 [DefaultUDPTransportMapping_127.0.0.1/161] DEBUG
> org.snmp4j.transport.DefaultUdpTransportMapping  - Received message from
> /127.0.0.1/63167 with length 61:
> 30:3b:02:01:03:30:11:02:04:05:e4:af:d7:02:03:00:ff:ff:04:01:04:02:01:03:04:10:30:0e:04:00:02:01:00:02:01:00:04:00:04:00:04:00:30:11:04:00:04:00:a0:0b:02:01:00:02:01:00:02:01:00:30:00
> 3283585 [DefaultUDPTransportMapping_127.0.0.1/161] DEBUG
> org.snmp4j.mp.MPv3  - SNMPv3 header decoded: msgId=98873303,
> msgMaxSize=65535, msgFlags=04, secModel=3
> 3283585 [DefaultUDPTransportMapping_127.0.0.1/161] DEBUG
> org.snmp4j.security.USM  - RFC3414 §3.2.3 Unknown engine ID:
> 3283586 [DefaultUDPTransportMapping_127.0.0.1/161] DEBUG
> org.snmp4j.mp.MPv3  - Adding cache entry:
> StateReference[msgID=98873303,pduHandle=PduHandle[1990949864],securityEngineID=,securityModel=org.snmp4j.security.USM at c5c3ac,securityName=,securityLevel=1,contextEngineID=,contextName=]
> 3283587 [DefaultUDPTransportMapping_127.0.0.1/161] DEBUG
> org.snmp4j.mp.MPv3  - Removed cache entry:
> StateReference[msgID=98873303,pduHandle=PduHandle[1990949864],securityEngineID=,securityModel=org.snmp4j.security.USM at c5c3ac,securityName=,securityLevel=1,contextEngineID=,contextName=]
> 3283587 [DefaultUDPTransportMapping_127.0.0.1/161] DEBUG
> org.snmp4j.security.USM  - RFC3414 §3.1.4.b Outgoing message is not
> encrypted
> 3283587 [DefaultUDPTransportMapping_127.0.0.1/161] DEBUG
> org.snmp4j.transport.DefaultUdpTransportMapping  - Sending message to
> 127.0.0.1/63167 with length 87:
> 30:55:02:01:03:30:11:02:04:05:e4:af:d7:02:03:00:ff:ff:04:01:00:02:01:03:04:19:30:17:04:09:80:00:13:70:01:c0:a8:0b:02:02:01:00:02:01:00:04:00:04:00:04:00:30:22:04:00:04:00:a8:1c:02:01:00:02:01:00:02:01:00:30:11:30:0f:06:0a:2b:06:01:06:03:0f:01:01:04:00:41:01:22
> 3283587 [DefaultUDPTransportMapping_127.0.0.1/161] WARN
> org.snmp4j.MessageDispatcherImpl  - 1.3.6.1.6.3.15.1.1.4.0 = 34
>
>
> Here my code:
>
> Snmp snmp =  new Snmp(new DefaultUdpTransportMapping());
>
>           OctetString localEngineID = new
> OctetString(MPv3.createLocalEngineID());
>
>           ((MPv3)snmp.getMessageProcessingModel(MPv3.ID)).
>               setLocalEngineID(localEngineID.getValue());
>
>           USM usm = new USM(SecurityProtocols.getInstance(),
>                               localEngineID,
>                               0);
>             SecurityModels.getInstance().addSecurityModel(usm);
>             snmp.getUSM().addUser(new OctetString("SHADES"),new
> UsmUser(new OctetString("SHADES"),
>                     AuthSHA.ID,
>                     new OctetString("SHADESAuthPassword"),
>                     PrivDES.ID,
>                     new OctetString("SHADESPrivPassword")));
>
>           UserTarget target = new UserTarget();
>           target.setSecurityLevel(SecurityLevel.AUTH_PRIV);
>           target.setSecurityName(new OctetString("SHADES"));
>           target.setVersion(SnmpConstants.version3);
>           target.setAddress(new UdpAddress("127.0.0.1/161"));
>           target.setRetries(1);
>           target.setTimeout(500);
> //        target.setMaxSizeRequestPDU(maxSizeResponsePDU);
>           snmp.listen();
>
>           ScopedPDU request = new ScopedPDU();
>           request.setType(PDU.GET);//createPDU(target);
>           if (request.getType() == PDU.GETBULK) {
>             request.setMaxRepetitions(50);
>             request.setNonRepeaters(1);
>           }
>           request.add(new VariableBinding(new OID("0.1.0")));
>
>           PDU response = null;
>             ResponseEvent responseEvent;
>             long startTime = System.currentTimeMillis();
>             responseEvent = snmp.send(request, target);
>             if (responseEvent != null) {
>               response = responseEvent.getResponse();
>               System.out.println("Received response after "+
>                                  (System.currentTimeMillis()-startTime)+"
> millis"+response.getVariableBindings());
>           }
>           snmp.close();
>
> Please help me!!
>
> Thanks and Best regards
> Marshall
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