[SNMP4J] Raw coding

[Marco.Bresciani at alcatel-lucent.it]

Hello all,
  I'm having few minor problems with respect to coding and discovering 
SNMPv3 or SNMPv2.

In order to understand if I have an engineID or if I have a SNMPv2 device, 
is this enough?

/**
 * This will do the discovery... maybe!
 */
private void discovery() {

    /* variables definition */
    Address myAddress = GenericAddress.parse("udp:127.0.0.1/161");
    TransportMapping myTransport = new DefaultUdpTransportMapping();
    Snmp mySnmp = new Snmp(myTransport);
    byte[] myEngine = mySnmp.discoverAuthoritativeEngineID(myAddress, 
25000);

    /* engine test */
    if (myEngine == null) {
        // SNMPv2 management
        // same as now, I fortunately have it! :-)
    } else {
        // SNMPv3 management
        this.mySnmpV3Management();
    }
}

/**
 * This will manage SNMPv3 configuration and management...
 *
 * @see SNMP4J Snmp Javadoc
 */
private void mySnmpV3Management() {
    USM myUsm = new USM(SecurityProtocols.getInstance(),
                        new OctetString(MPv3.createLocalEngineID()), 
                        0);

    SecurityModels.getInstance().addSecurityModel(myUsm);
    myTransport.listen();
    mySnmp.getUSM().addUser(new OctetString("MD5DES"),
                            new UsmUser(new OctetString("MD5DES"),
                            AuthMD5.ID,
                            new OctetString("MD5DESUserAuthPassword"),
                            PrivDES.ID,
                            new OctetString("MD5DESUserPrivPassword")));

    UserTarget myTarget = new UserTarget();

    myTarget.setAddress(myAddress);
    myTarget.setRetries(1);
    myTarget.setTimeout(5000);
    myTarget.setVersion(SnmpConstants.version3);
    myTarget.setSecurityLevel(SecurityLevel.AUTH_PRIV);
    myTarget.setSecurityName(new OctetString("MD5DES"));

    PDU myPdu = new ScopedPDU();
    myPdu.add(new VariableBinding(new OID("1.3.6")));
    myPdu.setType(PDU.GETNEXT);
    ResponseEvent myResponse = mySnmp.send(pdu, target);
    PDU myResponsePdu = myResponse.getResponse();
    Address myPeerAddress = myResponse.getPeerAddress();
}

Sort of...

bye,

Ing. Marco Bresciani
Alcatel-Lucent 
Java Developer
WTD R&D Software Competence Center
via Trento, 30; 20059 Vimercate (Mi); Italy
EMail: Marco.Bresciani at alcatel-lucent.it
Phone: +39 039 686 5546
Fax: +39 039 686 5546