Hi,
The trap PDU is malformed regarding the used OIDs (the structure cannot
exists in properly constructed SMI MIB),
but that is not the cause for your specific problem here.
Just use the UsmUser constructor with localization engine ID parameter
and put there the "localEngineIdInBytes".
Best regards,
Frank
Am 06.09.2015 um 18:50 schrieb N, Ravikiran:
HI All,
I am using the below snippet code for sending the SNMPv3 trap with Authoritative Engine
ID. I am getting the exception as " Message processing model 3 returned error:
Unknown security name".
While debugging snmp4j jar I have identified mismatch between Engine ID
inserted into the UsmUserTable and EngineId used for retrieval of UsmUser from
the UsmUserTable. Please help me through this problem.
My Code for sending V3 trap is as below:
byte[] localEngineIdInBytes = MPv3.createLocalEngineID();
USM usm = new USM(SecurityProtocols.getInstance(),
new OctetString(localEngineIdInBytes), 0); //Local Engine
Id
ScopedPDU pdu = new ScopedPDU();
pdu.setContextName(new
OctetString("ContextName"));
pdu.setContextEngineID(new OctetString(localEngineIdInBytes)); // Context
Engine ID
pdu.setType(ScopedPDU.TRAP);
long sysUpTime =
(System.currentTimeMillis() - start) / 10;
pdu.add(new VariableBinding(new
OID(trapOid + ".7"), new TimeTicks(sysUpTime)));
pdu.add(new VariableBinding(new
OID(trapOid + ".8"), new OID(trapOid)));
pdu.add(new VariableBinding(new
OID(trapOid + ".1"), new OctetString("ssid")));
pdu.add(new VariableBinding(new
OID(trapOid + ".2"), new OctetString("1234")));
pdu.add(new VariableBinding(new
OID(trapOid + ".3"), new OctetString("CRI")));
pdu.add(new VariableBinding(new
OID(trapOid + ".4"), new OctetString("PROCESS")));
pdu.add(new
VariableBinding(new OID(trapOid + ".5"), new OctetString(new
Date().toString())));
pdu.add(new VariableBinding(new
OID(trapOid + ".6"), new OctetString("message")));
TransportMapping transport = new DefaultUdpTransportMapping();
Address targetAddress = GenericAddress.parse("udp:127.0.0.1/" + port);
UserTarget comtarget = new UserTarget();
comtarget.setVersion(SnmpConstants.version3);
comtarget.setAddress(targetAddress);
comtarget.setRetries(2);
comtarget.setTimeout(5000);
comtarget.setSecurityName(new
OctetString("abhi"));
comtarget.setSecurityModel(3);
comtarget.setSecurityLevel(SecurityLevel.AUTH_PRIV);
SecurityModels.getInstance().addSecurityModel(usm);
SNMP snmp =
new Snmp(transport);
snmp.getUSM().addUser(new
OctetString("abhi"), new OctetString(localEngineIdInBytes),), //
Authoratative Engine ID
new
UsmUser(new OctetString("abhi"), AuthSHA.ID,
new OctetString("12345678"), PrivDES.ID,
new OctetString("12345678")));
snmp.send(pdu, comtarget);
snmp.close();
Regards,
Ravikiran N
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