Add result of eval to datamodel field

[tiaatim]

I have a search that evals out a calculation from other fields to a "Duration" field for netflow data.  Is there a way to populate duration in the network traffic datamodel with the results of the calculation?  It currently has firewall data in it but I'd like to add netflow as well.

Thanks!

[richgalloway · Accepted solution]

Searches can't modify data models. You can, however, add a calculated field to the DM.

[tiaatim]

I was thinking about that, but the field already exists in the DM though so I don't want to modify how it is populated for our firewall logs.  If I turned that field into a calculated field then the existing duration value in the FW data would be lost and wouldn't populate the field with fw logs right?

[richgalloway]

That's true if you use the same name for two fields. Workaround is to use a different name for the netflow field.

[tiaatim]

I thought about that too but then the datamodel wouldn't populate and the data wouldn't be CIM compliant.