Hi Eric, It works as it was designed ;-). I guess, you are sending a SNMPv1 TRAP-PDU with SNMPv2c which is a protocol violation. Just send a NOTIFICATION PDU instead and everything would be fine.
(Alternatively, you may send the V1TRAP with SNMPv1) Best regards, Frank On 18.03.2011 16:54, Eric Thiebaut wrote: > Hi, > > I am sending a trap and trying to subscribe to it, but I'm facing some > problems. > I'm compiling against the released source package of of 1.11.2 (in order to > debug). > > Sending the trap is pretty straight forward: > PDUv1 pdu = new PDUv1(); > pdu.setType(PDU.V1TRAP); > ... > this.snmp.send(pdu, target); > > I can check with wireshark and my packet looks fine. > > Now I'm subscribing for events (actually in the same process): > TransportMapping transport = > new DefaultUdpTransportMapping(new > UdpAddress("0.0.0.0/10160")); > snmp = new Snmp(transport); > snmp.addCommandResponder(this); > transport.listen(); > > > All this is pretty straight forward. > But when traps are received, the reception thread throws an exception in > PDU.java > as pduType.getValue() returns PDU.V1TRAP (as expected), which is not > supported by the class PDU. > > The problem seems to come from MessageDispatcherImpl: > Integer32 version = new Integer32(); > version.decodeBER(wholeMessage); > MessageProcessingModel mp = > getMessageProcessingModel(version.getValue()); > > version decodes to 1. The mp at position 1 is MPv2c, and not MPv1 (which is > at position 0). > So when MPv2c decodes the pdu, it creates a PDU object and not PDUv1 object, > which does not support v1 traps. > > Is this expected? At the moment I cannot receive my traps because of this. > Am I doing something wrong? > > Thanks > > Eric > _______________________________________________ > SNMP4J mailing list > SNMP4J@agentpp.org > http://lists.agentpp.org/mailman/listinfo/snmp4j -- AGENT++ http://www.agentpp.com http://www.snmp4j.com http://www.mibexplorer.com http://www.mibdesigner.com _______________________________________________ SNMP4J mailing list SNMP4J@agentpp.org http://lists.agentpp.org/mailman/listinfo/snmp4j