[SNMP4J] Send Response PDU fails
Frank Fock
fock at agentpp.com
Thu Jan 9 23:23:00 CET 2014
Hi,
Could you please explain what you are trying to accomplish?
What process sends which message to what entity?
Which software products and versions are involved?
What are the engine IDs of command generator and responder?
Best regards,
Frank
Am 09.01.2014 10:19, schrieb siva kumar:
> Hi,
>
> I tried creating an SNMP agent
>
> The following is the listener code
>
> Snmp snmp = new Snmp( new MessageDispatcherImpl() );
> // Add message processing models to be supported
> snmp.getMessageDispatcher().addMessageProcessingModel( new
> MPv1() );
> snmp.getMessageDispatcher().addMessageProcessingModel( new
> MPv2c() );
> snmp.getMessageDispatcher().addMessageProcessingModel( new
> MPv3() );
> engineId = new
> OctetString(((MPv3)snmp.getMessageProcessingModel(MessageProcessingModel.MPv3)
> ).getLocalEngineID());
> USM usm = new USM(SecurityProtocols.getInstance(), engineId ,
> 0);
> SecurityModels.getInstance().addSecurityModel(usm);
> SecurityProtocols.getInstance().addDefaultProtocols();
> snmp.addTransportMapping( transport );
> snmp.addCommandResponder( subAgent );
> UsmUser user = new UsmUser(new OctetString("MD5DES"),AuthMD5.ID,
> new
> OctetString("MD5DESUserAuthPassword"),
> PrivDES.ID,
> new
> OctetString("MD5DESUserPrivPassword"));
> snmp.getUSM().addUser(new OctetString("MD5DES"), user);
> subAgent.setSnmp( snmp );
>
> if( ! transport.isListening() )
> transport.listen();
>
> Send code
>
> ScopedPDU pdu3 = new ScopedPDU();
> pdu3.setType(PDU.GET);
> pdu3.setMaxRepetitions(50);
> // Get ifNumber only once
> pdu3.setNonRepeaters(1);
> // set context non-default context (default context does not need
> to be set)
> pdu3.setContextName(new OctetString("contextA"));
> pdu3.setContextEngineID(new
> OctetString(((MPv3)snmp.getMessageProcessingModel(MessageProcessingModel.MPv3)).getLocalEngineID()));
> // Added a few varbinds
>
> UserTarget target = new UserTarget();
> target.setAddress(targetq.getAddress());
> target.setRetries(1);
> target.setTimeout(5000);
> target.setVersion(SnmpConstants.version3);
> target.setSecurityLevel(SecurityLevel.AUTH_PRIV);
> target.setSecurityName(new OctetString("MD5DES"));
>
> snmp.send(pdu3, target );
>
>
> When i enabled trace on snmp4j i got the following information
>
> [org.snmp4j.mp.MPv3] (pool-8-thread-1) SNMPv3 header decoded:
> msgId=121143980, msgMaxSize=65487, msgFlags=04, secModel=3
> [org.snmp4j.security.USM] (pool-8-thread-1) RFC3414 §3.2.3 Unknown engine
> ID:
> [org.snmp4j.mp.MPv3] (pool-8-thread-1) Adding cache entry:
> StateReference[msgID=121143980,pduHandle=PduHandle[507258884],securityEngineID=,securityModel=org.snmp4j.security.USM at 3fe2670b
> ,securityName=,securityLevel=1,contextEngineID=,contextName=]
> [org.snmp4j.mp.MPv3] (pool-8-thread-1) Removed cache entry:
> StateReference[msgID=121143980,pduHandle=PduHandle[507258884],securityEngineID=,securityModel=org.snmp4j.security.USM at 3fe2670b
> ,securityName=,securityLevel=1,contextEngineID=,contextName=]
> [org.snmp4j.security.USM] (pool-8-thread-1) RFC3414 §3.1.4.b Outgoing
> message is not encrypted
> [org.snmp4j.MessageDispatcherImpl] (pool-8-thread-1) 1.3.6.1.6.3.15.1.1.4.0
> = 0
> [org.snmp4j.mp.MPv3] (pool-8-thread-1) SNMPv3 header decoded:
> msgId=121143979, msgMaxSize=65487, msgFlags=07, secModel=3
> [org.snmp4j.security.USM] (pool-8-thread-1)
> getUser(engineID=80:00:13:70:01:ac:1f:00:6f, securityName=MD5DES)
> [org.snmp4j.security.UsmTimeTable] (pool-8-thread-1) CheckTime: time ok
> (authorative)
> [org.snmp4j.mp.MPv3] (pool-8-thread-1) RFC3412 §7.2.10 - Received PDU is
> NOT a response or internal class message -> unchanged PduHandle =
> PduHandle[756210224]
> [org.snmp4j.mp.MPv3] (pool-8-thread-1) Adding cache entry:
> StateReference[msgID=121143979,pduHandle=PduHandle[756210224],securityEngineID=80:00:13:70:01:ac:1f:00:6f,securityModel=org.snmp4j.security.USM at 3fe2670b
> ,securityName=MD5DES,securityLevel=3,contextEngineID=80:00:13:70:01:ac:1f:00:6f,contextName=]
> [org.snmp4j.Snmp] (pool-8-thread-1) Fire process PDU event:
> CommandResponderEvent[transportMapping=ExtendedUdpTransportMapping[
> 2607:f0d0:1002:11:0:0:0:6/161]peerAddress=2607:f0d0:1002:11:0:0:0:6/51547,
> processed=false, pdu=[GET[reqestID=756210224, errorStatus=0, errorIndex=0,
> VBS[1.3.6.1.2.1.1.1.0 = Null]]], securityName=MD5DES, securityModel=3,
> securityLevel=3]
> [centina.tools.simulation.snmp.agent.SnmpSubAgent] (pool-8-thread-1)
> SUB-AGENT: 2607:f0d0:1002:11:0:0:0:6/161:: Received event
> L:2607:f0d0:1002:11:0:0:0:6/161; P:2607:f0d0:1002:11:0:0:0:6/51547;
> PDU:GET[reqestID=756210224, errorStatus=0, errorIndex=0,
> VBS[1.3.6.1.2.1.1.1.0 = Null]];A:2607:f0d0:1002:11:0:0:0:6/51547;
> [centina.tools.simulation.snmp.agent.SnmpSubAgent] (pool-4-thread-7)
> Response RESPONSE[reqestID=756210224, errorStatus=0, errorIndex=0,
> VBS[1.3.6.1.2.1.1.1.0 = ExtremeXOS version 12.3.1.2 v1231b2 by
> release-manager on Thu Jun 18 21:56:40 PDT 2009]]
> [centina.tools.simulation.snmp.agent.SnmpMasterAgent] (pool-4-thread-7)
> SUB-AGENT: Executed Request in 2 ms
> [centina.tools.simulation.snmp.agent.SnmpMasterAgent] (pool-5-thread-7)
> EngineId 80:00:13:70:01:ac:1f:00:6f
> [centina.tools.simulation.snmp.agent.SnmpMasterAgent] (pool-5-thread-7)
> @@Resp 80:00:13:70:01:ac:1f:00:6f - GETBULK[reqestID=0,
> errorStatus=1, errorIndex=50, VBS[1.3.6.1.2.1.1.1.0 = ExtremeXOS version
> 12.3.1.2 v1231b2 by release-manager on Thu Jun 18 21:56:40 PDT 2009]]
> [org.snmp4j.security.USM] (pool-5-thread-7) RFC3414 §3.1.4.b Outgoing
> message is not encrypted
> [org.snmp4j.mp.MPv3] (pool-5-thread-7) Adding cache entry:
> StateReference[msgID=1588426278,pduHandle=PduHandle[507258886],securityEngineID=,securityModel=org.snmp4j.security.USM at 3fe2670b
> ,securityName=MD5DES,securityLevel=1,contextEngineID=80:00:13:70:01:ac:1f:00:6f,contextName=contextA]
> [org.snmp4j.Snmp] (pool-5-thread-7) Running pending sync request with
> handle PduHandle[507258886] and retry count left 1
> [org.snmp4j.security.USM] (Timer-0) RFC3414 §3.1.4.b Outgoing message is
> not encrypted
> [org.snmp4j.mp.MPv3] (Timer-0) Adding cache entry:
> StateReference[msgID=1588426279,pduHandle=PduHandle[507258886],securityEngineID=,securityModel=org.snmp4j.security.USM at 3fe2670b
> ,securityName=MD5DES,securityLevel=1,contextEngineID=80:00:13:70:01:ac:1f:00:6f,contextName=contextA]
> [org.snmp4j.Snmp] (Timer-0) Running pending sync request with handle
> PduHandle[507258886] and retry count left 0
> [org.snmp4j.Snmp] (Timer-0) Request timed out: 507258886
> [org.snmp4j.Snmp] (pool-5-thread-7) Removed pending request with handle:
> PduHandle[507258886]
> [centina.tools.simulation.snmp.agent.SnmpMasterAgent] (pool-5-thread-7)
> SUB-AGENT: TIMEOUT: Time taken 10003 ms greater than 2000 ms
> [centina.tools.simulation.snmp.ProfileManager] (Profile Timer) Scanning for
> and deploying any profile changes
> [centina.tools.simulation.snmp.ProfileManager] (Profile Timer) Descriptors:
> [extreme-summit-x450]
>
>
> I get a
> Timeout: No Response from udp6:[2607:f0d0:1002:11::6]:161
>
> when i perform a snmpget. Could someone please help me with this?
>
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