How can I troubleshoot a cribl destination (Splunk HEC) not sending data?

my first step would be to send to `nc` running on a local host and interrogate the actual payload

Trying that but I suspect that I will get nothing. Destination out traffic charts are at 0.Not sure if rules order matter in router destination but tried to change those as I have few disabled one/set false.

For now, not getting expected data. If using destination Test option, I get it in tcpdump and splunk. I would think the problem is likely not in destination but before. But not sure why as the main routing is working and not this one.

Running the test from within the HEC destination doesn't involve routing in any way

yes and this part is working. so that means destination is configured fine, right? in this case, problem is earlier

strangely after switching back localhost to splunk system, now, I have got data in tcdpump 8088but strange correct/incorrect marking...all in aws network

but no data in splunk UI

the test function should produce data in splunk, if you specify the correct index

fix that first. then tackle routing config

Ok. got it. that was the router "final" option check. now got it in splunk

Thanks