Migration on-premises infrastructure to Azure

PAUL CHONG CHUANG YONG 80 Reputation points
2024-01-05T01:29:13.11+00:00

Hi Everyone,

I'm new beginner in Azure, my customer wish to migration current on-premises infrastructure to Azure in few phases. Current on-premises setup is using VMware for all services, so I have the question.

First phase is planning migrate the one of the DC and fille server to Azure as the VM, but need remain the same IP address, I have seen a lot of articles teaching about the migration but all with different IP, do anyone can advise how can I make this goal?

Regards,

Paul

Azure Migrate
Azure Migrate
A central hub of Azure cloud migration services and tools to discover, assess, and migrate workloads to the cloud.
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Windows Server Migration
Windows Server Migration
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Migration: The process of making existing applications and data work on a different computer or operating system.
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  1. Silvia Wibowo 3,011 Reputation points Microsoft Employee
    2024-01-05T05:29:45.36+00:00

    Hi @Anonymous , I understand that you want to migrate VM from on-prem to Azure but they need to retain the same IP address. I assume you're talking about private IP addresses, please let me know if this is not the case.

    I suggest you not to do it. Network topology in Azure is quite different compared to on-premises, and during the migration you'd need Azure virtual network to connect to your on-premises network, which is very challenging if they use the same IP address space.

    Please plan and design your network in Azure according to best practices: https://learn.microsoft.com/en-us/azure/cloud-adoption-framework/migrate/azure-best-practices/migrate-best-practices-networking

    We have step-by-step guide for installing Domain Controllers on Azure: https://learn.microsoft.com/en-us/training/modules/deploy-manage-azure-iaas-active-directory-domain-controllers-azure/

    Please accept an answer if correct. Original posters help the community find answers faster by identifying the correct answer. Here is how.

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  1. Luke Murray 10,526 Reputation points MVP
    2024-01-05T05:33:29.21+00:00

    Hi, Paul

    It is not recommended to use the same IP address range in Azure, then on-premises to avoid routing and address space issues; your best bet would be to re-ip the Virtual Machine to the new VNET, with new address space - and rely on DNS instead for your application failovers.

    Having said that, you can extend your virtual network by using a VXLAN tunnel between 2 Server 2019 virtual servers: Extend your on-premises subnets into Azure using extended network for Azure

    Doing so, will rely on the management and upkeep of these virtual machines, but as the note indicates:

    User's image

    It is recommended to have a new address space for Azure, it will reduce a lot of rework later on.