This may seem like a silly question now, but I would like to confirm something.

I would like to confirm the port requirements for backup and restore to object storage.
https://helpcenter.veeam.com/docs/backu ... repository
The above user guide says that TCP/IP 2500-3300 communication is required from the Source Object storage repository to the Veeam component servers.
However, in my test environment, I registered Amazon S3 to an all-in-one configuration VBR server and blocked TCP/IP 2500-3300 inbound communication to the VBR server with Windows Firewall.
In this case, NAS backup and restore of VBR server local files to Amazon S3 was still successful.
So when is inbound communication on the TCP/IP 2500-3300 port to the Veeam component server used?
Is it used for backup copy operations from object storage?
Kind Regards,
Asahi,
Climb Inc.