// read the command line parameters
String host = argv[0];
String port = argv[1];

// Specify the OidTable containing all the MIB II knowledge
// Use the OidTable generated by mibgen when compiling MIB II
//
SnmpOidTableSupport oidTable = new RFC1213_MIBOidTable();
SnmpOid.setSnmpOidTable(oidTable);
       
SnmpPeer agent = new SnmpPeer(host, Integer.parseInt(port));
     
// When creating the parameter object, you can specify the
// read and write community to be used when querying the agent.
SnmpParameters params = new SnmpParameters("public", "private");
agent.setSnmpParam(params);

SnmpSession session = new SnmpSession("SyncManager session");

// When invoking a service provided by the SnmpSession, it
// will use the default peer if none is specified explicitly
session.setDefaultPeer(agent);

// Create a listener and dispatcher for SNMP traps:
// SnmpEventReportDispatcher will run as a thread and
// listens for traps in UDP port = agent port + 1
SnmpEventReportDispatcher trapAgent =
    new SnmpEventReportDispatcher(Integer.parseInt(port)+1);
// TrapListenerImpl will receive a callback
// when a valid trap PDU is received.
trapAgent.addTrapListener(new TrapListenerImpl()); 
new Thread(trapAgent).start();

// Build the list of variables you want to query.
// For debugging, you can associate a name to your list.
SnmpVarbindList list= new SnmpVarbindList(
    "SyncManager varbind list");
     
// We want to read the "sysDescr" variable.
list.addVariable("sysDescr.0");
    
// Make the SNMP get request and wait for the result.
SnmpRequest request = session.snmpGet(null, list);
boolean completed = request.waitForCompletion(10000);

// Check for a timeout of the request.
if (completed == false) {
    java.lang.System.out.println(
"Request timed out. Check if agent can be reached");
    java.lang.System.exit(0);
}

// Check if the response contains an error.
int errorStatus = request.getErrorStatus();
if (errorStatus != SnmpDefinitions.snmpRspNoError) {
    java.lang.System.out.println("Error status = " + 
        SnmpRequest.snmpErrorToString(errorStatus));
    java.lang.System.out.println("Error index = " +
        request.getErrorIndex());
    java.lang.System.exit(0);
}

// Now we can extract the content of the result.
SnmpVarbindList result = request.getResponseVbList();
java.lang.System.out.println("Result: \n" + result);

[...] // Wait for user to type enter. Traps will be handled.

// End the session properly and we're done
session.destroySession();
java.lang.System.exit(0);