Packet mirroring
You can use GCP's packet mirroring feature to capture all ingress and egress traffic and packet data, such as payloads and headers. As packet loading exports all traffic, not only the traffic between sampling periods, you may find it useful when monitoring and analyzing your security status. This configuration mirrors the traffic from a network interface or subnet in the specified VPC and sends it to the internal load balancer, which is specified as the destination in the packet mirroring policy. The following shows the topology for this configuration:
