How can I migrate an Azure Reserved IP (classic) to an Azure Public IP (ARM)?

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When migrating services in Azure from the Classic Model to the Azure Resource Manager (ARM) you might have some reserved IP addresses in your classic model. The ARM counterpart of the reserved IP is the public IP. Creating a new public IP will result in another IP address and might cause issues with clients that have whitelisted your IP address.

Although it's best to use whitelisting based on the FQDN. However, it is sometimes not possible and IP whitelisting is the next-best alternative. How do you migrate from a reserved IP address to a public IP address, without getting a new IP address?

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3 Answers

I couldn't get the old ASM PowerShell commands to work in the Azure Portal's Cloud Shell. Here's how you can migrate a classic Reserved IP to Public IP using the Azure CLI.

azure account set <subscriptionNameOrId>
azure provider register Microsoft.ClassicInfrastructureMigrate
azure provider show Microsoft.ClassicInfrastructureMigrate
azure config mode asm
azure network reserved-ip list
azure network reserved-ip disassociate <name> <service-name> <deployment-name>
azure network reserved-ip list
azure network reserved-ip validate-migration <name>
azure network reserved-ip prepare-migration <name>
azure network reserved-ip commit-migration <name>
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