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Datastream to Oracle Database - Connection Timeout

I am trying to establish a connection from the Datastream console to the Oracle database in the Oracle Cloud (OCI). I have already created a VPN tunnel it seems to be working since I connected to the same database by VM in the GCP. But when I try to connect through the Datastream it fails with a timeout connection error. Please the screenshot below

carlosfjunior_0-1642788139257.png

 

I am using a private connection and in this case the IP range (/29) used by Datastream, we opened in the OCI firewall.

Too, i tested the connectivity used reverse proxy, and happened the same problem. I saw in the VM instance with proxy configured (used tcpdump), that the connection returned to GCP, but showed the same error in the Datastream.

Is there a way I can solve this?

Is there a way I can see logs or something more detailed from the GCP environment to know exactly what's causing the error?

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