Version 5.5 of the Net-SNMP agent suffers from a bug that causes the value of sysObjectID always to be truncated to ".1.3" on i386 or ".0.1" on x86_64. The result is that SNMP management applications (e.g. OpenNMS) are unable to
determine from the sysObjectID that they're in fact talking to a Net-SNMP agent.
To work around this agent bug, we should add two identical auxiliary systemDefs with exact <sysoid> child elements of ".1.3" and ".0.1". These systemDefs should include all the collection groups from the "Enterprise" systemDef and the "Net-SNMP" systemDef.