Default Outbound Access in Azure

Publisher

Microsoft

URL

https://learn.microsoft.com/en-us/azure/virtual-network/ip-services/default-outbound-access

Published

2026-07-24

Updated

unknown

Accessed

2026-10-14

HTTP status

200

License

Microsoft Learn terms of use; no-redistribution; short excerpts and locators only

Source notes citing this source

• The default outbound access IP Azure assigns to a VM with no explicit outbound method is owned by Microsoft and can change without notice. in context
• Azure's explicit outbound methods are a NAT gateway on the subnet, a Standard load balancer with outbound rules, a Standard public IP on the VM NIC, or an NVA or firewall reached through a user-defined route. in context
• Microsoft lists multiple NICs on a VM yielding inconsistent outbound IPs as a configuration that does not work with default outbound access. in context
• For the Azure API version released after 31 March 2026, subnets in new virtual networks default to private (defaultOutboundAccess false), so VMs need an explicit outbound method; existing virtual networks are unchanged. in context
• Changing an Azure subnet between private and non-private only takes effect on existing VMs after they are stopped and deallocated. in context

Cite this source record

APA

WarmTransfer. (2026, July 24). Default Outbound Access in Azure. WarmTransfer. https://warmtransfer.net/knowledge/sources/ms-learn-azure-default-outbound-access

BibTeX

@misc{warmtransfer-ms-learn-azure-default-outbound-access,
  title  = {Default Outbound Access in Azure},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/ms-learn-azure-default-outbound-access},
  note   = {Microsoft, accessed 2026-10-14}
}