Cannot create multiple class B ip address

Question

Cannot create multiple class B ip address

Arfin Mia 0

Hello, I want multiple this type of ip in my resourse group 172.177.4.62.

Not this type of ip 20.204.50.135 or 20.219.48.103.

I tried to create with v-net selecting Address space: 10.0.0.0/16A Address range:10.0.0.0 - 10.0.255.255

But it is not giving me any public ip address that looks like this.

Also how to attach it with a new vm?

Thank you a lot guys❤️

GitaraniSharma-MSFT 50,021 Reputation points Microsoft Employee Moderator

2023-06-20T11:49:10.19+00:00

Hello @Arfin Mia ,

Welcome to Microsoft Q&A Platform. Thank you for reaching out & hope you are doing well.

I understand that you would like to create multiple Public IP addresses in the range of 172.177.X.X.

As mentioned by @Jackson Martins below and described in Azure Public IP documentation:

Checking the Azure Service Tags file, it can be seen that 172.177.X.X IP addresses are contained in the "172.176.0.0/15" range and it belongs to AzureCloud.eastus2 service tag meaning, when you deploy a resource in East US 2, you may get an IP address in this range, but East US 2 region has various other ranges such as 13.104.X.X, 20.49.X.X, 40.77.X.X, 52.101.X.X and so on. So, it is impossible to know from which available range your IP address will be assigned.

You may raise a support request to check if the backend team can help in any way.

Regarding your second question on how to attach the Public IP with a new VM, please refer the below:

If you already have an existing VM and you want to associate a Public IP address to it, please refer below article:

https://learn.microsoft.com/en-us/azure/virtual-network/ip-services/associate-public-ip-address-vm

If you are creating a new VM and want to associate the existing Public IP address, then in the Networking tab of VM creation, select the Public IP from the drop down as below:

NOTE: The public IP addresses that appear in the drop-down list are those that exist in the same region as the VM. If your existing Public IP is deployed in another region than the one you are trying to deploy the VM in, then you cannot associate the existing IP address and would need to create a new Public IP. If you want to associate the existing IP address to a new VM, then make sure that the VM is created in the same region as the Public IP address.

Hope this helps!

Please "Accept the answer" below if the information helped you. This will help us and others in the community as well.
GitaraniSharma-MSFT 50,021 Reputation points Microsoft Employee Moderator

2023-06-22T16:13:23.0133333+00:00

@Arfin Mia , Just checking in to see if you had a chance to see the below answer. To help the community find the right answers, please do mark the post which was helpful by clicking on Accept Answer.

And, if you have any further questions do let us know.
GitaraniSharma-MSFT 50,021 Reputation points Microsoft Employee Moderator

2023-06-26T10:31:42.5266667+00:00

@Arfin Mia , Just checking in to see if you had a chance to see the below answer. To help the community find the right answers, please do mark the post which was helpful by clicking on Accept Answer.

And, if you have any further questions do let us know.

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GitaraniSharma-MSFT 50,021 Reputation points Microsoft Employee Moderator

2023-06-22T16:13:23.0133333+00:00

@Arfin Mia , Just checking in to see if you had a chance to see the below answer. To help the community find the right answers, please do mark the post which was helpful by clicking on Accept Answer.

And, if you have any further questions do let us know.
GitaraniSharma-MSFT 50,021 Reputation points Microsoft Employee Moderator

2023-06-26T10:31:42.5266667+00:00

@Arfin Mia , Just checking in to see if you had a chance to see the below answer. To help the community find the right answers, please do mark the post which was helpful by clicking on Accept Answer.

And, if you have any further questions do let us know.

Answer 1

Jackson Martins 10,606 MVP Volunteer Moderator

Hi @arfin mia

As I understand, you would like to get a public IP address on the 172.177.x.x network, right?

Public IP addresses are assigned by Microsoft when you request a public IP in Azure, and you don't have control over the exact IP you get

The IPs are chosen from a pool of available public IPs that Microsoft owns.

You can try submit a support ticket

https://go.microsoft.com/fwlink/p/?linkid=2202692&clcid=0x409

And request the availability of providing an ip in that range, but, The ip distribution pool is random by region and availability, it is likely that there are no more ips available in this range

reference: https://learn.microsoft.com/en-us/azure/virtual-network/ip-services/public-ip-addresses

Get in touch if you need more help with this issue.

--please don't forget to "[Accept the answer]" if the reply is helpful--

Jackson Martins 10,606 Reputation points MVP Volunteer Moderator

2023-06-19T19:10:53.74+00:00

@Arfin Mia

I don't know what your need is, but if you need them to have the same output ip, you can also choose to use Nat Gateway, leaving all your vms with the same ip

Reference: https://learn.microsoft.com/en-us/azure/nat-gateway/nat-overview

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Cannot create multiple class B ip address

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