Hello Frank (and other readers that might know the answer ;-),
I tried to use the new functionality within the v1.10 to avoid using my own
overloaded class as listed before. however i run into a problem I cannot figure
out.It would be nice if you could help.below you find two methods, where the
first is not working (using the new constructor) and reports 1403 errors. The
second method is working correct. From my point of view, the functionality
however should be interchangable, but I must be missing something.
Trace of error scenario:2009-06-16 18:28:38.859 CEST DEBUG [Timer-0 ]
Snmp4jAgent SNMP GET command (OID=<removed>.1.1.0)2009-06-16 18:28:43.859 CEST
DEBUG [Timer-0 ] Snmp4jAgent executed GET command (oid=<removed>.1.1.0),
response=null2009-06-16 18:28:43.859 CEST ERROR [Timer-0 ] Snmp4jAgent
SNMP GetCommand :: response==null2009-06-16 18:28:43.859 CEST ERROR [Timer-0
] ediationTableV1 result==null2009-06-16 18:28:43.875 CEST DEBUG [Timer-0 ]
Snmp4jAgent SNMP GET command (OID=<removed>.2.1.0)2009-06-16 18:28:43.875
CEST DEBUG [Timer-0 ] ediationTableV2 Error getting new index: Message
processing model 3 returned error: 14032009-06-16 18:28:43.875 CEST DEBUG
[Timer-0 ] Snmp4jAgent SNMP GET command (OID=<removed>.3.1.0)2009-06-16
18:28:43.875 CEST DEBUG [Timer-0 ] iationTablePCV2 Error getting new index:
Message processing model 3 returned error: 1403
Methods:
/** * Initializes the SNMP4J object. * (non working method) *
@return * @throws IOException */ protected Snmp initSnmpAndSecurity(
) throws IOException { // create the snmp instance Snmp snmp =
new Snmp(); snmp.addTransportMapping(new
DefaultUdpTransportMapping()); OctetString localEngineID = new
OctetString(MPv3.createLocalEngineID()); // create the USM
security model USM usm = new USM(SecurityProtocols.getInstance(),
localEngineID, 0); // create the user for the USM UsmUser
user = new UsmUser(_securityName,
_authProtocol, _authPassphrase,
_privProtocol,
_privPassphrase
); //add the user to the usm usm.addUser(_securityName,
user);
// to make sure a different security model is used for each SNMP
instance, // this is the way to initialize. Otherwise there might be
strange behaviours // in the case the remote engine id is not
unique MessageDispatcher disp = snmp.getMessageDispatcher();
disp.addMessageProcessingModel(new MPv1());
disp.addMessageProcessingModel(new MPv2c());
disp.addMessageProcessingModel(new MPv3(usm));
snmp.listen(); return snmp; } /** * Create
the SNMP object. * (working method) * @return * @throws
IOException */ protected Snmp initSnmpAndSecurity2( ) throws IOException
{ // create the snmp instance Snmp snmp = new Snmp(new
DefaultUdpTransportMapping()); OctetString localEngineID = new
OctetString(MPv3.createLocalEngineID()); // create the USM
security model USM usm = new USM(SecurityProtocols.getInstance(),
localEngineID, 0); // create the user for the USM UsmUser
user = new UsmUser(_securityName,
_authProtocol, _authPassphrase,
_privProtocol,
_privPassphrase); //add the user to the usm
usm.addUser(_securityName, user);
// create own version of the SecurityModels to avoid multithreading
issues MultiThreadedSecurityModels mtm = new
MultiThreadedSecurityModels(); // add the usm as the security model
mtm.addSecurityModel(usm); // add the newly create
SecurityModels to the MPv3 (overwrite the default)
MessageProcessingModel mpm = snmp.getMessageProcessingModel(MPv3.ID); if
( mpm instanceof MPv3 ) ((MPv3)mpm).setSecurityModels(mtm);
else throw new RuntimeException("Received different
MessageProcessing model than requested, Should never happen!");
snmp.listen(); return snmp; }
Thanks again and best regards,
Sjoerd
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