[SNMP4J] SNMP4J Starting up problems

[Frank Fock]

Hello,

You need to configure the USM indeed.
See http://www.snmp4j.org/doc/org/snmp4j/Snmp.html
for an example. The error code you get is described here:
http://www.snmp4j.org/doc/org/snmp4j/mp/SnmpConstants.html

Best regards,
Frank

Oosten, Harry van schrieb:
> Hello, 
>
>  
>
> As a requirement for an application I need to build in option to request
> some OID from switches and/or a APC. 
>
> I have tried to create a testclass based on the examples given in the
> API. 
>
>  
>
> I think I don't get the whole idea to make things work. I want to know
> what I need to create this functionality:
>
>  
>
> -       SNMPv3
>
> -       Polling Switches and/or APC
>
> -       Acting on value from the response
>
>  
>
> I've tried to create an UserTarget and ScopedPDU 
>
>  
>
>   private ScopedPDU createScopedPdu() {
>
>         ScopedPDU pdu = new ScopedPDU();
>
>         pdu.add(new VariableBinding(new OID(".1.3.1.2.6.1.2.1.1.2")));
>
>  
>
>         pdu.setType(PDU.GETBULK);
>
>         pdu.setMaxRepetitions(50);
>
>         pdu.setNonRepeaters(1);
>
>  
> pdu.setContextEngineID(OctetString.fromHexString("80:00:13:70:c0:a8:01:0
> d"));
>
>         return pdu;
>
>     }
>
>
>
> private UserTarget createUserTarget() {
>
>         UserTarget target = new UserTarget();
>
>         target.setAddress(new UdpAddress("127.0.0.1/161"));
>
>         target.setRetries(1);
>
>         target.setTimeout(500);
>
>         target.setVersion(SnmpConstants.version3);
>
>         target.setSecurityLevel(SecurityLevel.AUTH_PRIV);
>
>         target.setSecurityName(new OctetString("MD5DES"));
>
>         return target;
>
>     }
>
>  
>
> With these to tried to send the message:
>
>     
>
> private void sendMessage(ScopedPDU requestPDU, UserTarget target) throws
> IOException {
>
>         Snmp snmp = null;
>
>         try {
>
>             snmp = new Snmp(new DefaultUdpTransportMapping());
>
>             snmp.listen();
>
>  
>
>  
>
>         } catch (IOException ex) {
>
>  
> Logger.getLogger(MySnmpTest.class.getName()).log(Level.SEVERE, null,
> ex);
>
>         }
>
>         ResponseEvent response = snmp.send(requestPDU, target);
>
>         if (response.getResponse() == null) {
>
>             // request timed out
>
>         } else {
>
>             System.out.println("Received response from: " +
>
>                     response.getPeerAddress());
>
>             // dump response PDU
>
>             System.out.println(response.getResponse().toString());
>
>         }
>
>     }
>
>  
>
> There are a few things I don't understand first off all  get an
> stacktrace:
>
>  
>
> Exception in thread "main" org.snmp4j.MessageException: Message
> processing model 3 returned error: -1402
>
>         at
> org.snmp4j.MessageDispatcherImpl.sendPdu(MessageDispatcherImpl.java:458)
>
>         at org.snmp4j.Snmp.sendMessage(Snmp.java:951)
>
>         at org.snmp4j.Snmp.send(Snmp.java:808)
>
>         at org.snmp4j.Snmp.send(Snmp.java:760)
>
>         at test.MySnmpTest.sendMessage(MySnmpTest.java:87)
>
>         at test.MySnmpTest.go(MySnmpTest.java:48)
>
>         at test.MySnmpTest.main(MySnmpTest.java:42)
>
>  
>
> Second of all where do I need to configure my username and password for
> the connection?
>
>  
>
> Thanks in advance. Any help would be welcome.
>
>  
>
> Met vriendelijke groet / Kind Regards,
>
>  
>
> ing. Harry van Oosten
>
>  
>
> Software engineer
>
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>
>  
>
>
>
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