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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