Putting It All Together (CIDR)
So, in this third Lookup implementation, we:
- Extracted fields using the
ParserFunction. - Configured the
LookupFunction to use theCIDRmatch mode. - Used the
EvalFunction to route each event to the correct SIEM index. - Used the
DropFunction to filter out events without an associated team.
In conclusion, we used the CIDR match mode to sort interleaved events into groups that make sense for our customer's business needs. We simultaneously provided them a return on their Cribl Stream investment, by helping them filter out events they don't need – reducing downstream licensing and infrastructure costs.