Port / service guidance for registering a resource

[DanNBullock]

In the event that a user is attempting to register a resource that is behind a firewall and on a subnet of some sort (e.g., a conventional home wifi network), it seems likely that it would be necessary to configure some form of port forwarding or port specification when setting up the resource configuration.

Is this an entirely user-resource-side process such that the user specifies the port in the resource configuration Hostname field, or does the brainlife orchestration service (and the resource configuration tests service?) have a default port that it connects via?