[SNMP4J] simple snmp get

[Afnan Chowdhury]

Hi All,

I would be very glad if anyone response me with the solution of this
problem. I am using SNMP4J library for the first time and need for a
quick tick off using its all sorts of aspects of it but got stuck at
the beginning. I am using Jbuilder with JDK 1.5 on a winxp mechine
sending snmp get to a broadcase address.

Many Thanks in advance.

Afnan 



Error message is 

Exception in thread "main" org.snmp4j.MessageException: Unsupported
message processing model: 0

	at org.snmp4j.MessageDispatcherImpl.sendPdu(MessageDispatcherImpl.java:399)

	at org.snmp4j.Snmp.sendMessage(Snmp.java:900)

	at org.snmp4j.Snmp.send(Snmp.java:783)

	at org.snmp4j.Snmp.send(Snmp.java:771)

	at NetworkAlarmReportingTool.SNMPTest.main(SNMPTest.java:76)

Source Code:


import org.snmp4j.*;
import java.lang.*;
import org.snmp4j.smi.*;
import org.snmp4j.transport.DefaultUdpTransportMapping;
import org.snmp4j.event.ResponseEvent;
import org.snmp4j.PDU;
import org.snmp4j.smi.OctetString;
import java.io.*;
import org.snmp4j.smi.GenericAddress;
import org.snmp4j.mp.SnmpConstants;
import org.snmp4j.event.ResponseListener;


public class SNMPTest {
    public static void main(String[] args) throws IOException {


        CommunityTarget target = new CommunityTarget();
        Address targetAddress = GenericAddress.parse("udp:9.15.255.255/161");
        //boolean a = targetAddress.isValid();
        //System.out.print(a);

        target.setCommunity(new OctetString("public"));
        target.setAddress(targetAddress);
        target.setRetries(2);
        target.setTimeout(15000);
        target.setVersion(SnmpConstants.version1);
        // creating PDU
        PDU pdu = new PDU();
        pdu.add(new VariableBinding(new OID(new int[] {1,3,6,1,2,1,1,1})));
        pdu.add(new VariableBinding(new OID(new int[] {1,3,6,1,2,1,1,2})));
        pdu.setType(PDU.GETNEXT);
   
        // sending request
        ResponseListener listener = new ResponseListener() {
            public void onResponse(ResponseEvent event) {
                // Always cancel async request when response has been received
                // otherwise a memory leak is created! Not canceling a request
                // immediately can be useful when sending a request to
a broadcast
                // address.
                ((Snmp) event.getSource()).cancel(event.getRequest(), this);
                System.out.println("Received response PDU is: " +
                                   event.getResponse());
            }
        };

        TransportMapping transport = null;
                try {
                    transport = new DefaultUdpTransportMapping();
                } catch (IOException ex) {
                }
        Snmp s = new Snmp();
        s.send(pdu,target,null,listener);
    }
}