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GCP Packet Mirroring currently does not support negative filters supporting the “not” condition, e.g. not 10.0.0.0/8. To work around this and mirror only internet traffic, specify a filter that includes public CIDR blocks and excludes 10.0.0.0/8 internal traffic. IP ranges to use:128.0.0.0/1, 64.0.0.0/2, 32.0.0.0/3, 16.0.0.0/4, 0.0.0.0/5, 12.0.0.0/6, 8.0.0.0/7, 11.0.0.0/8
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Cross-VPC Packet Mirroring
You can set up cross-VPC (and cross-project) Packet Mirroring by following the steps described in the GCP Packet Mirroring documentation.
Shared VPC Packet Mirroring
You can set up packet mirroring in a Shared VPC setting by following the steps described in the GCP Packet Mirroring documentation.
Verify Setup
If Blue Hexagon and Packet Mirroring are setup correctly, you will see observations in the Blue Hexagon portal from the gcp appliance in the Discover view as shown below.
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