Vukašin Terzić 6/16/2025

Monitoring Azure Subnet IP Availability

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This technical article addresses the problem of Azure subnet IP exhaustion, which lacks built-in monitoring. It provides a step-by-step tutorial to create a solution using a PowerShell script that collects subnet capacity data, ingests it into a custom Log Analytics table via Azure Automation, and sets up Azure Monitor alerts to trigger when available IPs fall below a 20% threshold.

Monitoring Azure Subnet IP Availability

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