We are planning to setup the webMethods.io API and webMethods.io Integration platform which will co-exist with our existing on-premise webMethods setup. I require some clarification on how the connectivity between the wM on-premise setup and the wM.io cloud platforms will work.
The on-premise Integration Server can connect to the webMethods cloud by establishing an outbound connectivity from the on-prem IS to the webMethods cloud. This enables us to push services and/or packages from on-premise setup to wM.io Integration to run them in the cloud.
What I am unsure about is how the connectivity between wM.io API and our on-premise IS will work. Does a firewall rule needs to be established from wM.io API Gateway to our on-prem IS to route requests from API Gateway to IS? Or will it be an outbound connection from IS to the wM.io API Gateway similar to the reverse proxy setup which works for an on-prem API Gateway?