Guidance on VPN Site to Site configuration for different locations

Mike-1314 45 Reputation points
2025-05-20T04:10:55.18+00:00

Hi,

I need an help regarding Site-to-Site VPN for our org. Our goal is to establish a secure connection between two different locations. Could you provide detailed information on the requirements for this setup? I have a Microsoft 365 license and need to know if this service can be integrated into my existing license. Any help much appreciated.

Azure VPN Gateway
Azure VPN Gateway
An Azure service that enables the connection of on-premises networks to Azure through site-to-site virtual private networks.
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  1. Sai Prasanna Sinde 6,645 Reputation points Microsoft External Staff Moderator
    2025-05-20T04:27:40.6833333+00:00

    Hi @Mike

    We understand that you're looking to set up a Site-to-Site VPN for your organization to connect two different locations securely. Here’s a rundown of what you’ll need to consider for this setup:

    To establish a Site-to-Site VPN, you will need:

    • An active Azure subscription (separate from your Microsoft 365 license).
    • A Virtual Network (VNet) in Azure to connect to your on-premises network.
    • A VPN Gateway (deployed in Azure, supporting IPsec/IKE protocols).

    A compatible on-premises VPN device with:

    • A public-facing IPv4 address
    • Support for IKEv2/IPsec
    • Proper configuration to connect to Azure VPN Gateway
    • Microsoft 365 License Consideration

    Your existing Microsoft 365 license does not include Azure VPN Gateway services. You will need a separate Azure subscription (Pay-As-You-Go or Enterprise Agreement).

    VPN Gateway costs will depend on the selected SKU (Basic, VpnGw1, VpnGw2, etc.) and data transfer.

    Also, please refer to the below documents for further understanding:


    Your feedback is important so please take a moment to click Accept answer.

    If you still have questions, please let us know what is needed in the comments so the question can be answered.


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  1. VIVEK DWIVEDI 185 Reputation points Microsoft Employee
    2025-05-21T09:20:45.2966667+00:00

    Hi @Mike,

    Thanks for reaching out to us.

    My basic understanding is you want to have the site-to-site VPN connection to establish the connectivity between two of your sites.
    To give you proper solution, I would have to know little more about your requirement,

    1. Why do you need S2S connection? What purpose does it solve in your case.
    2. Between where to where you need this connection?
    3. Since you mentioned about M365, do you want to access M365 resources over this VPN? --Accessing M356 resources over A S2S VPN is not supported but I can guide you better if you provide me above requested information.

    If you want to create a Site-to-Site VPN between Azure and on-prem or between Two Azure VNet's following document covers that.

    https://learn.microsoft.com/en-us/azure/vpn-gateway/tutorial-site-to-site-portal

    Thank you.

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