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Default outbound access for VMs in Azure will be retired—transition existing VMs to a new method of internet access

Karthik Selvaraj 0 Reputation points
2025-03-10T14:53:24.34+00:00

The VMs (with no public IPs) attached to our subnet have a default route to Azure firewall for outbound connectivity. Will I be affected?

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. Rohith Vinnakota 3,150 Reputation points Microsoft External Staff
    2025-03-10T21:19:19.0266667+00:00

    Hi @Karthik Selvaraj,

    Will I be affected

    No,Since VMs are already routing outbound traffic through Azure Firewall, you are partly configured for explicit outbound connectivity. However, you need to ensure that all required outbound connections are properly defined and managed through the Azure Firewall.
    Diagram of decision tree for default outbound access.

    Refer this doc: https://learn.microsoft.com/en-us/azure/virtual-network/ip-services/default-outbound-access?form=MG0AV3#when-is-default-outbound-access-provided

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