IPv6 traffic to port 8770 causes regularly causes an alert from the ESET Endpoint Security firewall, but rules to allow this traffic don't seem to work.
The following forum topic on this same issue was archived without a resolution: https://forum.eset.com/topic/13282-allow-port-8770-via-era-on-macos/
I've tried the same approach as @OrinW did there, also without the expected results.
The issue is also covered here: https://discussions.apple.com/thread/6834103
Does anyone know a solution?