Hi,
Here is a general SNMP quesstion.
Our system has many cpus and different SNMP agents (some of them are 3rd party agents) are
running on each host.We send trap from all the hosts to a specific host.That host receives all the traps and then it forwards those traps to Network monitoring station.
In the network monitoring station,traps received have the agent address as the individual
host address,which actaually generated the traps.
But we have a requirement that the agent address need to be modified to the address of the host which forwards the traps.And introduce a new varbind in SNMP PDU to show the actual host
which forwarded the trap.
This can be done by reformatting the received trap before sending it by adding a new OID field.As long as the SNMP agents are our agent's we can add a new variable (with new OID).
But is it OK to add new variable in 3rd party MIBs.Please let me know.
we can explain it better if we know the purpose of your agent address to be changed in the trap?
The way you are doing for forwarding the traps to NMS is by using proxy ( master-subagent support). One host will act as a master and the rest of the host are subagent which forwards the traps to the master and finally the master agent will send it to the NMS. In that case, send a cold start trap from your master agent ( once it starts ) so that the agent ipaddress will be noted and take appropriate action in your NMS side.
Thanks,
Karthik N
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