[SNMP4J] Need help:Unable to run sample snmp code with OIDs
Hi, I think community target and target address are corrects as asked by u so now tell me how to solve the problem Regards Anshul ___ SNMP4J mailing list SNMP4J@agentpp.org http://lists.agentpp.org/mailman/listinfo/snmp4j
[SNMP4J] Need help:Unable to run sample snmp code with OIDs
Hi,
I am sending the code with the error line no.
//import java.net.InetAddress;
import org.snmp4j.CommunityTarget;
import org.snmp4j.PDU;
import org.snmp4j.Snmp;
import org.snmp4j.TransportMapping;
import org.snmp4j.event.ResponseEvent;
import org.snmp4j.event.ResponseListener;
import org.snmp4j.mp.SnmpConstants;
import org.snmp4j.smi.*;
import org.snmp4j.transport.DefaultUdpTransportMapping;
//import java.lang.NullPointerException;
public class SNMP4JHelper
{
public static final int SNMP_PORT = 161;
public static final String READ_COMMUNITY = public;
public static final String WRITE_COMMUNITY= private;
public static final int mSNMPVersion =0; // 0 represents SNMP version=1
public static final String OID_Hard_disk = 1.3.6.1.2.1.1.3.0;
// 1.3.6.1.4.1.2021.9.1.7.1;
// .1.3.6.1.4.1.2021.4.4.0;
// 1.3.6.1.4.1.311.1.1.3.1.1.5.1.3;
//1.3.6.1.4.1.318.1.1.1.12.3.2.1.3.1;
//public static final String
OID_UPS_BATTERY_CAPACITY=1.3.6.1.4.1.318.1.1.1.2.2.1.0;
public static void main(String[] args)
{
try
{
// 172.20.1.150
String strIPAddress = 127.0.0.1;
SNMP4JHelper objSNMP = new SNMP4JHelper();
//objSNMP.snmpSet();
int Value = 1;
///
//Set Value=2 to trun OFF UPS OUTLET Group1
//Value=1 to trun ON UPS OUTLET Group1
//
// strIPAddress, WRITE_COMMUNITY,OID_Hard_disk, Value
// UPS_OUTLET_GROUP1
objSNMP.snmpSet(strIPAddress, WRITE_COMMUNITY,OID_Hard_disk, Value);
//
//Get Basic state of UPS
/
//line 45//
String batteryCap =objSNMP.snmpGet(strIPAddress,READ_COMMUNITY,OID_Hard_disk);
}
catch (Exception e)
{
e.printStackTrace();
}
}
/*
* The following code valid only SNMP version1. This
* method is very useful to set a parameter on remote device.
* */
public void snmpSet(String strAddress, String community, String strOID, int
Value)
{
strAddress= strAddress+/+SNMP_PORT;
Address targetAddress = GenericAddress.parse(strAddress);
Snmp snmp;
try
{
TransportMapping transport = new DefaultUdpTransportMapping();
snmp = new Snmp(transport);
transport.listen();
CommunityTarget target = new CommunityTarget();
target.setCommunity(new OctetString(community));
target.setAddress(targetAddress);
target.setRetries(2);
target.setTimeout(5000);
target.setVersion(SnmpConstants.version1);
PDU pdu = new PDU();
// pdu.add(new VariableBinding(new OID(strOID), new
Integer32(Value)));
pdu.setType(PDU.SET);
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);
if ( event.getResponse() != null )
{
System.out.println(Set Status
is:+event.getResponse().getErrorStatusText());
}
}
};
snmp.send(pdu, target, null, listener);
snmp.close();
}
catch (Exception e)
{
e.printStackTrace();
}
}
/*
* The code is valid only SNMP version1. SnmpGet method
* return Response for given OID from the Device.
*/
public String snmpGet(String strAddress, String community, String strOID)
{
String str=;
try
{
OctetString comm1 = new OctetString(community);
strAddress= strAddress+/+ SNMP_PORT;
Address targetaddress = new UdpAddress(strAddress);
TransportMapping transport = new DefaultUdpTransportMapping();
transport.listen();
CommunityTarget comtarget = new CommunityTarget();
comtarget.setCommunity(comm1);
comtarget.setVersion(SnmpConstants.version1);
comtarget.setAddress(targetaddress);
comtarget.setRetries(2);
comtarget.setTimeout(5000);
PDU pdu = new PDU();
ResponseEvent response;
Snmp snmp;
pdu.add(new VariableBinding(new OID(strOID)));
[SNMP4J] Need help:Unable to run sample snmp code with OIDs
Hi,
I have one more code the output is coming NULL for it i dont why.Please if u
can help me on this and the output language is not understandable
import java.io.IOException;
import org.snmp4j.*;
import org.snmp4j.smi.Address;
import org.snmp4j.CommandResponder;
import org.snmp4j.CommandResponderEvent;
import org.snmp4j.CommunityTarget;
import org.snmp4j.PDU;
import org.snmp4j.ScopedPDU;
import org.snmp4j.Snmp;
import org.snmp4j.TransportMapping;
import org.snmp4j.UserTarget;
import org.snmp4j.event.ResponseEvent;
import org.snmp4j.event.ResponseListener;
import org.snmp4j.mp.MPv3;
import org.snmp4j.mp.SnmpConstants;
import org.snmp4j.security.AuthMD5;
import org.snmp4j.security.PrivDES;
import org.snmp4j.security.SecurityLevel;
import org.snmp4j.security.SecurityModels;
import org.snmp4j.security.SecurityProtocols;
import org.snmp4j.security.USM;
import org.snmp4j.security.UsmUser;
import org.snmp4j.smi.Address;
import org.snmp4j.smi.GenericAddress;
import org.snmp4j.smi.OID;
import org.snmp4j.smi.OctetString;
import org.snmp4j.smi.VariableBinding;
import org.snmp4j.transport.DefaultUdpTransportMapping;
import org.snmp4j.Snmp;
import org.snmp4j.CommunityTarget;
public class Main
{
public static void main(String[] args) throws IOException{
// TODO code application logic here
Address targetAddress = GenericAddress.parse(udp:127.0.0.1/161);
TransportMapping transport = new DefaultUdpTransportMapping();
Snmp snmp = new Snmp(transport);
//USM - User Based Security Model
USM usm = new USM(SecurityProtocols.getInstance(),
new OctetString(MPv3.createLocalEngineID()), 0);
SecurityModels.getInstance().addSecurityModel(usm);
transport.getListenAddress();
if(transport.getListenAddress()!=null)
System.out.println(Adresa de ascultare
este:+transport.getListenAddress());
else System.out.println(Nu exista);
byte a[]=new byte[]{1,2};
transport.sendMessage(targetAddress, a);
transport.listen();
if(transport.isListening())
System.out.println(Marimea maxima a mesajul este:
+transport.getMaxInboundMessageSize());
System.out.println(snmp.getNextRequestID());
snmp.getUSM().addUser(new OctetString(MD5DES),
new UsmUser(new OctetString(MD5DES),
AuthMD5.ID,
new
OctetString(MD5DESUserAuthPassword),
PrivDES.ID,
new
OctetString(MD5DESUserPrivPassword)));
// creare target
UserTarget target = new UserTarget();
target.setAddress(targetAddress);
target.setRetries(1);
target.setTimeout(5000);
target.setVersion(SnmpConstants.version3);
target.setSecurityLevel(SecurityLevel.AUTH_PRIV);
target.setSecurityName(new OctetString(MD5DES));
System.out.println(User~ul: +snmp.getUSM());
System.out.println(Adresa la care va fi trimis mesajul:
+target.getAddress());
// creare PDU
PDU pdu = new ScopedPDU();
pdu.add(new VariableBinding(new OID(1.3.6)));
pdu.setType(PDU.GETNEXT);
System.out.println(Tip PDU: +pdu.getType());
// trimitere PDU
ResponseEvent response = snmp.send(pdu, target);
// extrage raspunsul PDU (poate fi null daca timpul expira)
PDU responsePDU = response.getResponse();
System.out.println(Raspuns: +response.getResponse());
//extrage adresa folosita de agent pentru a trimite raspunsul
Address peerAddress = response.getPeerAddress();
System.out.println(response.getRequest());
snmp.listen();
CommunityTarget communityTarget = new CommunityTarget();
communityTarget.setCommunity(new OctetString(public));
communityTarget.setAddress(targetAddress);
communityTarget.setRetries(3);
communityTarget.setTimeout(3000);
communityTarget.setVersion(SnmpConstants.version1);
System.out.println(Comunity target: +communityTarget.getCommunity());
// creare 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.add(new VariableBinding(new OID(new int[] {1,3,6,1,2,1,1,3})));
pdu.add(new VariableBinding(new OID(new int[] {1,3,6,1,2,1,1,4})));
pdu.add(new VariableBinding(new OID(new int[] {1,3,6,1,2,1,1,5})));
pdu.setType(PDU.GETNEXT);
snmp.listen();
ResponseListener listener = new ResponseListener() {
public void onResponse(ResponseEvent event) {
PDU response = event.getResponse();
PDU request = event.getRequest();
[SNMP4J] Need help:Unable to run sample snmp code with OIDs
Hi, I have tried running code by commenting hte line u have asked but error is still coming ERROR: Exception in thread DefaultUDPTransportMapping_192.168.2.2/0 java.lang.NullPointerException at org.snmp4j.transport.DefaultUdpTransportMapping$ListenThread.run(Unknown Source) at java.lang.Thread.run(Unknown Source) at org.snmp4j.util.DefaultThreadFactory$WorkerThread.run(Unknown Source) java.lang.NullPointerException at SNMP4JHelper.snmpGet(SNMP4JHelper.java:132) at SNMP4JHelper.main(SNMP4JHelper.java:45)Response= ___ SNMP4J mailing list SNMP4J@agentpp.org http://lists.agentpp.org/mailman/listinfo/snmp4j
[SNMP4J] Need help:Unable to run sample snmp code with OIDs
Hi, We are working on college project. We are unable to solve the
problem that we have come up while coding. Please, help us.Here is our code.
//import java.net.InetAddress;import
org.snmp4j.CommunityTarget;import org.snmp4j.PDU;import
org.snmp4j.Snmp;import org.snmp4j.TransportMapping;import
org.snmp4j.event.ResponseEvent;import org.snmp4j.event.ResponseListener;import
org.snmp4j.mp.SnmpConstants;import org.snmp4j.smi.*;import
org.snmp4j.transport.DefaultUdpTransportMapping;//import
java.lang.NullPointerException;public class SNMP4JHelper{ public static final
int SNMP_PORT = 161;public static final String READ_COMMUNITY =
public; public static final String WRITE_COMMUNITY= private; public
static final int mSNMPVersion =0; // 0 represents
SNMP version=1 public static final String OID_Hard_disk =
1.3.6.1.2.1.1.3.0;//1.3.6.1.4.1.2021.9.1.7.1;//
.1.3.6.1.4.1.2021.4.4.0;//
1.3.6.1.4.1.311.1.1.3.1.1.5.1.3;
//1.3.6.1.4.1.318.1.1.1.12.3.2.1.3.1; //public static final String
OID_UPS_BATTERY_CAPACITY=1.3.6.1.4.1.318.1.1.1.2.2.1.0; public static void
main(String[] args) { try {//
172.20.1.150 String strIPAddress = 127.0.0.1;
SNMP4JHelper objSNMP = new SNMP4JHelper();
//objSNMP.snmpSet();int Value = 1;
/// //Set Value=2
to trun OFF UPS OUTLET
Group1 //Value=1 to trun ON UPS OUTLET Group1
//
// strIPAddress, WRITE_COMMUNITY,OID_Hard_disk, Value//
UPS_OUTLET_GROUP1 objSNMP.snmpSet(strIPAddress,
WRITE_COMMUNITY,OID_Hard_disk,
Value);
//
//Get Basic state of UPS
/
String batteryCap
=objSNMP.snmpGet(strIPAddress,READ_COMMUNITY,OID_Hard_disk);
} catch (Exception e) {
e.printStackTrace();}
} /* * The following code valid only SNMP version1. This
* method is very useful to set a parameter on remote device.* */
public void snmpSet(String strAddress, String community, String strOID, int
Value) { strAddress= strAddress+/+SNMP_PORT;
Address
targetAddress = GenericAddress.parse(strAddress); Snmp snmp;
try { TransportMapping transport
= new DefaultUdpTransportMapping();snmp = new
Snmp(transport); transport.listen();
CommunityTarget target = new CommunityTarget();
target.setCommunity(new OctetString(community));
target.setAddress(targetAddress); target.setRetries(2);
target.setTimeout(5000);
target.setVersion(SnmpConstants.version1); PDU pdu = new
PDU();// pdu.add(new VariableBinding(new OID(strOID), new
Integer32(Value)));pdu.setType(PDU.SET);
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);
if ( event.getResponse() != null )
{ System.out.println(Set
Status is:+event.getResponse().getErrorStatusText());
} } };
snmp.send(pdu, target, null, listener);
snmp.close();
} catch (Exception e) {
e.printStackTrace();} } /* * The
code is valid only SNMP version1.
SnmpGet method * return Response for given OID from the Device.*/
public
String snmpGet(String strAddress, String community, String strOID) {
String str=; try {
[SNMP4J] (no subject)
___ SNMP4J mailing list SNMP4J@agentpp.org http://lists.agentpp.org/mailman/listinfo/snmp4j
[SNMP4J] Need help:Unable to run sample snmp code with OIDs
Hi, I have send u a code in my last mail and before that u asked some questions mentioned below Is the community correct? Target address correct? Is the agent running? Actually we are new to the project so we are not able to understand the question asked by u so if possible from the code provided by me please if u can help us to answer your question please Regards Anshul ___ SNMP4J mailing list SNMP4J@agentpp.org http://lists.agentpp.org/mailman/listinfo/snmp4j
