无法在第一次发送后几次接收SNMPv3陷阱。[snmp4j-Java]

Question

从过去几天开始，我一直在努力用Auth和priv短语发送SNMPV3陷阱。问题是:在我收到第一个陷阱SNMPv3与8月-Priv，我不能接收陷阱后，有时(约2分钟)。接收者就像忽略了即将到来的每一个陷阱。

这是我的密码：

Receiver.java

    try {
        // set udpAdress and transportMapping
        final UdpAddress udpAddress = new UdpAddress(162);
        final TransportMapping transportMapping = new          DefaultUdpTransportMapping(udpAddress);

        // Protocole de sécurité +usm +snmp
        this.snmp = new Snmp(new MessageDispatcherImpl(), transportMapping);
        SecurityProtocols.getInstance().addDefaultProtocols();
        final USM usm = new USM(SecurityProtocols.getInstance(),
            new OctetString(MPv3.createLocalEngineID(new OctetString())),
            0);
        SecurityProtocols.getInstance().addPrivacyProtocol(new PrivDES());
        usm.setEngineDiscoveryEnabled(true);

        // Add the MPv
        snmp.getMessageDispatcher().addMessageProcessingModel(new MPv1());
        snmp.getMessageDispatcher().addMessageProcessingModel(new MPv2c());
        snmp.getMessageDispatcher().addMessageProcessingModel(new MPv3(usm));

        // Security model
        SecurityModels.getInstance().addSecurityModel(usm);

        // Add user 
        snmp.getUSM().addUser(new OctetString("v3AuthSHAPrivDESSecName"),
            new UsmUser(new OctetString("v3AuthSHAPrivDESSecName"), AuthMD5.ID,
                new OctetString("v3AuthSHAPrivDESAuthPassword"), PrivDES.ID,
                new OctetString("v3AuthSHAPrivDESPrivPassword")));

        // Launch of the listener
        this.snmp.addCommandResponder(this);
        snmp.listen();`

Sender.java

try {
        // set udpAdress and transportMapping
        Address targetAddress = GenericAddress.parse("udp:" + ipAddress + "/" + port);
        TransportMapping transport = new DefaultUdpTransportMapping();
        Snmp snmp = new Snmp(transport);

        // Protocole de sécurité +usm +snmp
        SecurityProtocols.getInstance().addDefaultProtocols();
        final USM usm = new USM(SecurityProtocols.getInstance(),
            new OctetString(MPv3.createLocalEngineID(new OctetString())),
            0);

        SecurityProtocols.getInstance().addPrivacyProtocol(new PrivDES());
        SecurityModels.getInstance().addSecurityModel(usm);

        transport.listen();

        // Ajout d'un user avec les paramètres de sécurité
        snmp.getUSM().addUser(new OctetString("v3AuthSHAPrivDESSecName"),
            new UsmUser(new OctetString("v3AuthSHAPrivDESSecName"), AuthMD5.ID,
                new OctetString("v3AuthSHAPrivDESAuthPassword"), PrivDES.ID,
                new OctetString("v3AuthSHAPrivDESPrivPassword")));

        // Create Target
        UserTarget target = new UserTarget();
        target.setAddress(targetAddress);
        target.setRetries(1111);
        target.setTimeout(11111500);
        target.setVersion(SnmpConstants.version3);
        target.setSecurityLevel(SecurityLevel.AUTH_PRIV);
        target.setSecurityName(new OctetString("v3AuthSHAPrivDESSecName"));

        // Create PDU 1 for V3
        ScopedPDU pdu = new ScopedPDU();
        pdu.setType(PDU.TRAP);
        pdu.add(new VariableBinding(SnmpConstants.sysUpTime));
        pdu.add(new VariableBinding(SnmpConstants.snmpTrapOID, SnmpConstants.linkDown));
        pdu.add(new VariableBinding(new OID(trapOid), new OctetString("V33333")));
        snmp.send(pdu, target);

        System.out.println("Sending Trap to (IP:Port)=> " + ipAddress + ":" + port);

        snmp.addCommandResponder(new CommandResponder() {
            public void processPdu(CommandResponderEvent arg0) {
                System.out.println(arg0);
            }
        });
        snmp.close();

• 我使用snmp4j-1.1依赖项。我不知道为什么它会忽略那些在第一次发送后2分钟就会出现的陷阱。 非常感谢朋友们的帮助

Answer 1

我找到了答案！:D只是将依赖项更改为snmp4j-2。*而且它有效，现在我使用了snmp4j-2.5.0。而且它工作得很好，如果你想使用它，上面的代码就会非常完美。

祝您代码日愉快:-)