π‘οΈ Google Logging Log Metric Filter and Alerts for VPC Network Route Changes do not existπ’
- Contextual name: π‘οΈ Log Metric Filter and Alerts for VPC Network Route Changes do not existπ’
- ID:
/ce/ca/google/logging/vpc-network-route-changes-monitoring - Tags:
- π’ Policy with categories
- π’ Policy with type
- π’ Production policy
- Policy Type:
COMPLIANCE_POLICY - Policy Categories:
SECURITY
Logicβ
- π§ prod.logic.yamlπ’
Similar Policiesβ
- Cloud Conformity: Enable VPC Network Route Changes Monitoring
Descriptionβ
Descriptionβ
It is recommended that a metric filter and alarm be established for Virtual Private Cloud (VPC) network route changes.
Rationaleβ
Google Cloud Platform (GCP) routes define the paths network traffic takes from a VM instance to another destination. The other destination can be inside the organization VPC network (such as another VM) or outside of it. Every route consists of a destination and a next hop. Traffic whose destination IP is within the destination range is sent to the next hop for delivery.
Monitoring changes to route tables will help ensure that all VPC traffic flows through an expected path.
Impactβ
Enabling of logging may result in your project being charged for the additional logs usage. These charges could be significant depending on the size of the organization.
Auditβ
From Google Cloud Consoleβ
Ensure that the prescribed Log metric is present:
- Go to
Logging/Logs-based Metricsby visiting https://console.cloud.google.com/logs/metrics.- In the
User-defined Metricssection, ensure that at least one metric<Log_Metric_Name>is present with the filter text:... see more
Remediationβ
Remediationβ
From Google Cloud Consoleβ
Create the prescribed Log Metric:
Go to
Logging/Logs-based Metricsby visiting https://console.cloud.google.com/logs/metrics and click "CREATE METRIC".Click the down arrow symbol on the
Filter Barat the rightmost corner and selectConvert to Advanced FilterClear any text and add:
resource.type="gce_route"
AND (protoPayload.methodName:"compute.routes.delete"
OR protoPayload.methodName:"compute.routes.insert")Click
Submit Filter. Display logs appear based on the filter text entered by the user.In the
Metric Editormenu on the right, fill out the name field. SetUnitsto1(default) andTypetoCounter. This ensures that the log metric counts the number of log entries matching the user's advanced logs query.Click
Create Metric.Create the prescribed alert policy:
- Identify the newly created metric under the section
User-defined Metricsat https://console.cloud.google.com/logs/metrics.- Click the 3-dot icon in the rightmost column for the new metric and select
Create alert from Metric. A new page displays.... see more