How can I route Azure VM going through Vnet Gateway <-> Local Gateway to use on-prem internet?

Alp Ertek 0 Reputation points

We currently have a Virtual Network that runs in an internal environment and connects down to our firewall and from there to the rest of the network. I wanted to see if there was a possibility from there to get outbound connectivity for the VMs utilizing our on-prem public IP Address instead. I understand it's not the best way to do things but for budgetary reasons I'm trying to see if I can avoid paying expensive virtual firewall costs on the cloud.

Azure Virtual Machines
Azure Virtual Machines
An Azure service that is used to provision Windows and Linux virtual machines.
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Azure Virtual Network
Azure Virtual Network
An Azure networking service that is used to provision private networks and optionally to connect to on-premises datacenters.
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  1. ChaitanyaNaykodi-MSFT 23,341 Reputation points Microsoft Employee

    @Alp Ertek

    Thank you for reaching out

    If I understand correctly, you want to direct all internet bound traffic in your Azure Virtual Network to your on-prem network and then to the internet.

    This is possible using forced tunneling in Azure VPN Gateway. Forced tunneling lets you redirect or "force" all Internet-bound traffic back to your on-premises location via S2S VPN tunnel for inspection and auditing.

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    You can follow this tutorial to configure forced tunneling using Default Site for site-to-site connections.

    Hope this helps! Please let me know if you have any additional questions. Thank you!

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