We have started to do some testing with FN. In our AWS network, we are using Cisco Firepower Threat Defense (FTD) devices managed by Firepower Management Console (FMC). FN is able to connect to an FTD and retrieve device details but does not support retrieval from FMC.
In our network, for complicated routing reasons, we can’t easily enable FN to connect to our FTD instances. I can, however, provide a URL that will retrieve all the information from FMC. I would like to configure an “HTTP(S) external source” to provide that info. What I cannot figure out, however, is the required format for the data to that is returned by the URL GET. The document just states that FN will “infer” the schema. In my case, there’s no inference needed. I am writing the code that will return the info. I can format the data however FN needs it.
For those who care about the details, the implementation is an AWS Lambda function that connects to the FMC REST API and returns the info. An AWS API gateway provides the URL.
