Oracle now has a VTAP service in your VCNs

Today, Oracle launches the Virtual Testing Access Point (VTAP) service in OCI. VTAP functionality, sometimes referred to as full packet capture or traffic mirroring, allows you to make a copy of traffic that traverses a specified point in your network and send the mirrored traffic to a collector for analysis. Common use cases for a VTAP include security threat monitoring, forensic analysis, compliance, and troubleshooting.

See the documentation for more information.