Hi @Sohyeon Cho (DHL KR) Thanks for reaching out. We have a tutorial that partially covers the above-mentioned scenario please refer for more information: https://learn.microsoft.com/en-us/azure/api-management/api-management-howto-integrate-internal-vnet-appgateway
None of the settings are required.
- Portal Settings > Content security policy > Enabled > Enter internal network hostname - is a good practice.
- Portal Settings > Self-hosted portal configuration (I need to create a hosting address that can be accessed from the internal network) - This is only for self-hosted portals and there's absolutely no need to self-host the portal based on what you mentioned in the question.
Do let me know if you have any queries. I would be happy to assist you.