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@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@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@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@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@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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