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I am using the IoT Hub service from the Microsoft Azure. The name of the service is <somename>-iothub.azure-devices.net and current IP assigned to is, assume 40.xxx.xxx.xxx
Azure Service Tag file has following IPs
"addressPrefixes": [ "13.69.71.0/25", "13.69.109.0/25", "13.95.15.251/32", "23.100.4.253/32", "23.100.8.130/32", "40.113.153.50/32", "40.113.176.160/27", "40.113.176.192/27", "40.113.177.0/24", "40.118.27.192/32", "51.144.118.31/32", "52.236.189.128/25", "2603:1020:206:402::300/123", "2603:1020:206:802::240/123", "2603:1020:206:c02::240/123"
As per Microsoft documentation, The IP address of an IoT hub is subject to change without notice. So my quesiton is, the changed IP will be one from the above list or it can be completely different one?
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Hi @DEEPAK KUMPALA We still have not heard back from you. Just wanted to check if the answer provided below was helpful? If it answers your query, please do click Accept Answer and Yes for the answer, as it might be beneficial to other community members reading this thread. And, if you have any further query do let us know. Thank you
https://learn.microsoft.com/en-us/azure/iot-hub/iot-hub-understand-ip-address
Downloadable JSON File
Actually yes Microsoft publishes the downloaded JSON files for Service tags you can use them pragmatically to whitelist these up ranges
You mean I need to periodically download json and whitelist? How frequently this will change?
Yes, if you are interested in these IP addresses (eg. because you have to manage firewall rules and your firewall only knows how to handle IP addresses) you need to check the file once in a while.
Normally, the Azure IP addresses for public endpoints/services change slowly.
Yes since this is a JSON file it is easy to download and create your whitelist file
and as Sander mentioned this list changes very rarely.
So, you mean I can maintain offline copy of these Ip's from service tag? No need to get latest service tag file every time because those list never change?
Can i assume, future IP is always from the list specified in service tag file?
Microsoft is in control of changing IP addresses for public Azure endpoints.
If Microsoft is planning an IP address change, this will be published in advance in these files.
It's up to you to check these files once in a while.
These files hardly change but you need to expect change.