[SNMP4J] get-response doesnt work

[Maximilian Butterer]

hi there,
i tried to implement the get-response functionality,
which worked fine in close surroundings.
but now, with external hardware that creates the snmp-traps
the get-response functionality doesnt work any more and i get
some output i will post below:

918235 [DefaultUDPTransportMapping_0.0.0.0/44444] DEBUG org.snmp4j.transport.DefaultUdpTransportMapping  - Received message from /10.0.1.163/4422 with length 117: 30:73:02:01:03:30:0e:02:02:03:e9:02:02:40:00:04:01:07:02:01:03:04:2c:30:2a:04:00:02:01:00:02:01:00:04:08:62:75:74:74:65:72:65:72:04:0c:f7:12:c7:b0:8a:e8:1d:82:84:b5:52:2b:04:08:00:00:00:00:00:00:00:00:04:30:f9:21:5d:b4:73:20:d5:a3:c6:ee:45:68:f8:84:a7:65:e3:68:e7:56:4a:49:36:48:2c:bd:3b:91:97:12:f1:14:e1:32:89:89:f1:45:06:c1:e3:2f:fc:42:8a:2a:a9:fd
918235 [DefaultUDPTransportMapping_0.0.0.0/44444] DEBUG org.snmp4j.mp.MPv3  - SNMPv3 header decoded: msgId=1001, msgMaxSize=16384, msgFlags=07, secModel=3
918235 [DefaultUDPTransportMapping_0.0.0.0/44444] DEBUG org.snmp4j.security.USM  - RFC3414 §3.2.3 Unknown engine ID: 
918235 [DefaultUDPTransportMapping_0.0.0.0/44444] DEBUG org.snmp4j.mp.MPv3  - Adding cache entry: StateReference[msgID=1001,pduHandle=PduHandle[1367864182],securityEngineID=,securityModel=org.snmp4j.security.USM at 1b1acc3,securityName=butterer,securityLevel=3,contextEngineID=,contextName=]
918235 [DefaultUDPTransportMapping_0.0.0.0/44444] DEBUG org.snmp4j.mp.MPv3  - Removed cache entry: StateReference[msgID=1001,pduHandle=PduHandle[1367864182],securityEngineID=,securityModel=org.snmp4j.security.USM at 1b1acc3,securityName=butterer,securityLevel=3,contextEngineID=,contextName=]
918235 [DefaultUDPTransportMapping_0.0.0.0/44444] WARN org.snmp4j.mp.MPv3  - Error while sending report: 1403
918235 [DefaultUDPTransportMapping_0.0.0.0/44444] WARN org.snmp4j.mp.MPv3  - Sending report failed with error code: -1400
918235 [DefaultUDPTransportMapping_0.0.0.0/44444] WARN org.snmp4j.MessageDispatcherImpl  - 1.3.6.1.6.3.15.1.1.4.0 = 1


what does this Sending report failed with error code -1400 mean? 
can anybody help me out?

thanks

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