[SNMP4J] Synchronous v1 GET not getting the result

[Deon van der Merwe]

Hi Frank,

Thanks!  That was spot on.

Do you guess LOTTO numbers this accurate as well?
;-)


Frank Fock wrote:
> Hi Deon,
> 
> I guess that you have forgotten to call Snmp.listen(), right?
> 
> Best regards,
> Frank
> 
> 
> Deon van der Merwe wrote:
> 
>> Hi,
>>
>> I am sending a SNMP v1 GET command to a cisco router.  On tcpdump
>> I see the request go out and the response coming back.  But I do
>> not get the actual response PDU.
>>
>> Here is (more or less) my code.  It is in the second to last line
>> that I always get a "null".
>>
>>     mCommunityTarget.setCommunity(new 
>> org.snmp4j.smi.OctetString(mCommunityName));
>>     mCommunityTarget.setAddress(new 
>> org.snmp4j.smi.UdpAddress(java.net.InetAddress.getByName(mAddress), 
>> mPort));
>>     mCommunityTarget.setRetries(1);
>>     mCommunityTarget.setTimeout(4096);
>>     mCommunityTarget.setVersion(org.snmp4j.mp.SnmpConstants.version1);
>>
>>       org.snmp4j.Snmp vSnmp = new org.snmp4j.Snmp(new 
>> org.snmp4j.transport.DefaultUdpTransportMapping());
>>
>>           for (int i = 0; i < mVariableLookup.size(); ++i) {
>>             OID vOIDHolder = (OID) mVariableLookup.get(i);
>>             org.snmp4j.PDU vPDU = new org.snmp4j.PDU();
>>             vPDU.add(new org.snmp4j.smi.VariableBinding(new 
>> org.snmp4j.smi.OID(vOIDHolder.mObjectID)));
>>             vPDU.setType(org.snmp4j.PDU.GET);
>>             mLogger.debug("snd: " + vPDU);
>>             org.snmp4j.PDU vResponsePDU = vSnmp.sendPDU(vPDU, 
>> mCommunityTarget);
>>             mLogger.debug("rcv: " + vResponsePDU);
>>           }
>>
>> Here is a log:
>> ---------------------------------
>> 2005-01-11 17:03:59,759 Thread-com.truteq.counter.HostResources DEBUG 
>> root - snd: GET[reqestID=0, errorStatus=0, errorIndex=0, 
>> VBS[1.3.6.1.2.1.2.2.1.16.4 = Null]]
>> 2005-01-11 17:03:59,760 Thread-com.truteq.counter.HostResources DEBUG 
>> org.snmp4j.transport.DefaultUdpTransportMapping - Sending message to 
>> 196.26.229.249/161 with length 44: 30:2a:02:
>> 01:00:04:05:74:74:63:6f:6d:a0:1e:02:04:49:f4:4d:ba:02:01:00:02:01:00:30:10:30:0e:06:0a:2b:06:01:02:01:02:02:01:10:04:05:00 
>>
>> 2005-01-11 17:03:59,760 Thread-com.truteq.counter.HostResources DEBUG 
>> org.snmp4j.Snmp - New pending request with 
>> handleorg.snmp4j.mp.PduHandle at 49f44dba
>> 2005-01-11 17:04:03,869 Timer-3 DEBUG 
>> org.snmp4j.transport.DefaultUdpTransportMapping - Sending message to 
>> 196.26.229.249/161 with length 44: 
>> 30:2a:02:01:00:04:05:74:74:63:6f:6d:a0:1e
>> :02:04:49:f4:4d:ba:02:01:00:02:01:00:30:10:30:0e:06:0a:2b:06:01:02:01:02:02:01:10:04:05:00 
>>
>> 2005-01-11 17:04:03,869 Timer-3 DEBUG org.snmp4j.Snmp - running 
>> pending request with handleorg.snmp4j.mp.PduHandle at 49f44dba
>> 2005-01-11 17:04:07,979 Thread-com.truteq.counter.HostResources DEBUG 
>> root - rcv: null
>>
>> -Deon
>> _____________________________________________________
>> TruTeq Wireless (Pty) Ltd.  | Tel: +27 (0)12 667 1530
>> http://www.truteq.co.za     | Fax: +27 (0)12 667 1531
>> Wireless communications for remote machine management
>>
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>>
> 
> 
>