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KarenSaund888's avatar
KarenSaund888
Copper Contributor
Jan 14, 2022
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What determines the outbound ip addresses in my app service in Azure?

I have one app service in Azure in a particular region under Premiumv2 Central US and a second in North Central US  region under Premium V3.  If i navigate to the Networking in the first app in Azur...
  • lukemurraynz's avatar
    Jan 16, 2022
    Each Region and service has a designated IP range: https://www.microsoft.com/en-us/download/details.aspx?id=56519

    "An App Service app runs in an App Service plan, and App Service plans are deployed into one of the deployment units in the Azure infrastructure (internally called a webspace). Each deployment unit is assigned a set of virtual IP addresses, which includes one public inbound IP address and a set of outbound IP addresses. All App Service plans in the same deployment unit, and app instances that run in them, share the same set of virtual IP addresses. For an App Service Environment (an App Service plan in Isolated tier), the App Service plan is the deployment unit itself, so the virtual IP addresses are dedicated to it as a result."

    I can't see any reference that designates you will have 20 IPs for V3, but I believe the higher scale sizing allows additional scale-out capability so you get assigned those IP for redundancy and throughput.
    https://docs.microsoft.com/en-us/azure/app-service/overview-inbound-outbound-ips

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