Hi Donna,
Use the Snmp.addNotificationListener instead to process
notifcations and traps. For INFORMs, SNMP4J will send
the response, because this is required by the SNMP standard.
Best regards,
Frank
Donna Griffin wrote:
Hi there,
I have created a listener class called trapDump that implements the
commandResponder interface and adds the unimplemented method,
processPDU. However when the class recieves a trap or inform message
it automatically generates a response message to the sender but does
not print the print out statements in the method.
Please find the code attached below@
private void registerForTraps(int port, String community, int version)
throws IOException
{
AbstractTransportMapping transport;
address=GenericAddress.parse("udp:127.0.0.1/" + port);
if (address instanceof TcpAddress) {
transport = new DefaultTcpTransportMapping((TcpAddress) address);
}
else {
transport = new DefaultUdpTransportMapping((UdpAddress) address);
}
ThreadPool threadPool =
ThreadPool.create("DispatcherPool", numDispatcherThreads);
MessageDispatcher mtDispatcher =
new MultiThreadedMessageDispatcher(threadPool, new
MessageDispatcherImpl());
// add message processing models
mtDispatcher.addMessageProcessingModel(new MPv1());
mtDispatcher.addMessageProcessingModel(new MPv2c());
mtDispatcher.addMessageProcessingModel(new
MPv3(localEngineID.getValue()));
// add all security protocols
SecurityProtocols.getInstance().addDefaultProtocols();
Snmp snmp = new Snmp(mtDispatcher, transport);
if (version == SnmpConstants.version3) {
USM usm = new USM(SecurityProtocols.getInstance(), localEngineID,
0);
SecurityModels.getInstance().addSecurityModel(usm);
if (authoritativeEngineID != null) {
snmp.setLocalEngine(authoritativeEngineID.getValue(), 0, 0);
}
// Add the configured user to the USM
snmp.getUSM().addUser(new OctetString(securityName), new
UsmUser(new OctetString(securityName),
authType,
new OctetString(authPassword),
privType,
new OctetString(privPassword)));
}
else {
CommunityTarget target = new CommunityTarget();
target.setCommunity(new OctetString(community));
this.target = target;
}
snmp.addCommandResponder(this);
transport.listen();
System.out.println("Listening on "+address);
}
public void processPdu(CommandResponderEvent arg0) {
// TODO Auto-generated method stub
System.out.println("inside processPdu..." + arg0.getPDU());
}
What I would expect now is that when the agent recieves the trap or
INFORM message the processPDU method would be called but it is not. I
also ran the examples that came with the distribution and the
statements in the processPDU method is not called there either Can you
help me please!
Regards,
Donna
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