[SNMP4J] Synchronous v1 GET not getting the result
Deon van der Merwe
dvdm at truteq.co.za
Tue Jan 11 16:10:30 CET 2005
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
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