aws reachability analyzer is worth its weight in gold

This is a shoutout to the Reachability Analyzer developers, y'all rock.

I have been using the AWS Network Manager tool "Reachability Analyzer" to handle going from Elastic Network Interface (ENI) <-> Some Destination (security group/route/IP/etc.) successfully for troubleshooting.

The great part is that it shows you within a minute or two whether or not the network route you're trying is "reachable". Additionally, the cost basis appears to only be about $0.10/run!