[SNMP4J] Problem when i receive SNMPv3 Trap...?

[Frank Fock]

Hi,

I do not fully understand what exactly
the problem/issue is. However, the request
without content is sent to discover the
target's engine ID.

Best regards,
Frank

Bala Sundaram wrote:
> Dear friends,
> 
>                   am trying to send SNMPv3 trap,
>                   when i monitor(using Wireshark tool) destination place am
> getting SNMP protocol, but after i tried to expand header... it does not
> have any content and it shows
> 
> *msgVersion: snmpv3 (3)
> msgGlobalData
> msgID: 1408349117
> msgMaxSize: 65535
> msgFlags: 04
> .... .1.. = Reportable: Set
> .... ..0. = Encrypted: Not set
> .... ...0 = Authenticated: Not set
> msgSecurityModel: USM (3)
> msgAuthoritativeEngineID: <MISSING>
> msgAuthoritativeEngineBoots: 0
> msgAuthoritativeEngineTime: 0
> msgUserName:
> msgAuthenticationParameters: <MISSING>
> msgPrivacyParameters: <MISSING>
> msgData: plaintext (0)
> plaintext
> contextEngineID: <MISSING>
> contextName: <MISSING>
> data: informRequest (6)
> informRequest
> request-id: 0
> error-status: noError (0)
> error-index: 0
> variable-bindings: 0 items*
> 
> 
> *and my code part is,,,, i don't know where am doing mistake... Please
> correct it....*
> 
> 
> 
> 
>             *try* {
> 
>                   *long* start = System.*currentTimeMillis*();
> 
>                   Address targetAddress = GenericAddress.*parse*("udp:" +
> targetIP + "/" + 162**);
> 
>                   TransportMapping transport =
> *new*DefaultUdpTransportMapping();
> 
>                   Snmp snmp = *new* Snmp(transport);
> 
>                   USM usm = *new* USM(SecurityProtocols.*getInstance*(),
> 
>                               *new* OctetString(MPv3.*createLocalEngineID*()),
> 0);
> 
>                   SecurityModels.*getInstance*().addSecurityModel(usm);
> 
>                   transport.listen();
> 
>                   snmp.getUSM().addUser(*new* OctetString("MD5DES"),
> 
>                               *new* UsmUser(*new* OctetString("MD5DES"),
> 
>                                           AuthMD5.*ID*,
> 
>                                           *new* OctetString(
> "MD5DESUserAuthPassword"),
> 
>                                           PrivDES.*ID*,
> 
>                                           *new* OctetString(
> "MD5DESUserPrivPassword")));
> 
> 
> 
>                   UserTarget target = *new* UserTarget();
> 
>                   target.setAddress(targetAddress);
> 
>                   target.setRetries(1);
> 
>                   // set timeout to 500 milliseconds -> 2*500ms = 1s total
> timeout
> 
>                   target.setTimeout(11500);
> 
>                   target.setVersion(SnmpConstants.*version3*);
> 
>                   target.setSecurityLevel(SecurityLevel.*AUTH_PRIV*);
> 
>                   target.setSecurityName(*new* OctetString("MD5DES"));
> 
> 
> 
>                   ScopedPDU pdu = *new* ScopedPDU();
> 
>                   pdu.setType(PDU.*INFORM*);
> 
> 
> 
>                   // sysUpTime
> 
>                   *long* sysUpTime = (System.*currentTimeMillis*() - start)
> / 10;
> 
>                   pdu.add(*new* VariableBinding(SnmpConstants.*sysUpTime*, *
> new* TimeTicks(sysUpTime)));
> 
>                   pdu.add(*new* VariableBinding(SnmpConstants.*snmpTrapOID*,
> SnmpConstants.*linkDown*));
> 
> 
> 
>                   // payload
> 
>                   pdu.add(*new* VariableBinding(*new* OID(
> "1.3.6.1.2.1.2.2.1.1.1"), *new* Integer32(1)));
> 
> 
> 
>                   // send the PDU
> 
>                   ResponseEvent response = snmp.send(pdu, target);
> 
>                   *if* (response.getResponse() == *null*)
> 
>                   {
> 
>                         System.*err*.println("Timeout...");
> 
>                   }
> 
>                   *else* {
> 
>                         System.*out*.println("Received response from : " +
> response.getPeerAddress());
> 
>                         // dump response PDU
> 
>                         System.*out*
> .println(response.getResponse().toString());
> 
>                   }
> 
>             } *catch* (Exception e) {
> 
>                   e.printStackTrace();
> 
>             }
> 
> 
> 
> Thank you,
> Boss134
> _______________________________________________
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