I have a java application which sends SNMP traps using SNMP4J. The problem is that OID is sent in trap body. All data I'm setting is successfully sent, but in trap body. I want Oid to be sent in trap header.
How can I send Oid in Trap header?
UdpAddress managerUdpAddress = new UdpAddress("address");
CommunityTarget ctarget = new CommunityTarget();
ctarget.setAddress(managerUdpAddress);
ctarget.setRetries(retryCount);
ctarget.setCommunity(new OctetString(community));
ctarget.setTimeout(timeout);
ctarget.setVersion(SnmpConstants.version2c);
PDU trap = new PDU();
OID oid = new OID(myOid);
trap.add(new VariableBinding(SnmpConstants.snmpTrapOID, oid));
trap.add(new VariableBinding(SnmpConstants.sysUpTime, new TimeTicks(5000)));
trap.add(new VariableBinding(SnmpConstants.sysDescr, new OctetString(
"System Description")));
trap.add(new VariableBinding(oid, new OctetString(message)));
DefaultUdpTransportMapping transport = new DefaultUdpTransportMapping();
Snmp snmp = new Snmp(transport);
snmp.notify(trap, ctarget);
When UPS is sending SNMP trap, OID is presented in SNMP trap header. Here are examples:
Trap from UPS:
Mon Mar 18 04:13:18 2019 .
1.3.6.1.4.1.935.0.49
Normal "SNMP EVENT" x.x.x.x - UPS_212_bypass_ac_normal SNMP TRAP: Bypass AC Normal
Trap from JAVA:
Mon Mar 18 05:25:36 2019
.0.00
Critical "SNMP EVENT" x.x.x.x - my application snmp errors: System Description General error. Size=2"