Add IP pools

  • 5 minutes

In this unit, we refer to external addresses as public IP addresses. In the context of Azure Stack Hub, a public IP address is an IP address that's accessible from outside of Azure Stack Hub. Whether that external network is public internet routable or is on an intranet and uses private address space doesn't matter for the purposes of this unit, the steps are the same.

While you can set up multiple IP pools, you won't be able to select which one to use. Azure Stack Hub threads all IP pools as one. When you create a resource, you can't pick an IP for assignment.

Add a public IP address pool

You can add public IP addresses to your Azure Stack Hub system at any time after the initial deployment of the Azure Stack Hub system.

At a high level, the process of adding a new public IP address block to Azure Stack Hub looks like this:

Image showing normalized relational tables.

Obtain the address block from your provider

The first thing you'll need to do is to obtain the address block you want to add to Azure Stack Hub. Depending on where you obtain your address block from, consider what the lead time is and manage this against the rate at which you're consuming public IP addresses in Azure Stack Hub.

Azure Stack Hub will accept any address block that you provide if it's a valid address block and doesn't overlap with an existing address range in Azure Stack Hub.

Add the IP address range to Azure Stack Hub

  1. In a browser, go to your administrator portal dashboard. For this example, we'll use https://adminportal.local.azurestack.external.
  2. Sign in to the Azure Stack Hub administrator portal as a cloud operator.
  3. On the default dashboard, find the Region management list and select the region you want to manage. For this example, we use local.
  4. Find the Resource providers tile and click on the network resource provider.
  5. Click on the Public IP pools usage tile.
  6. Click on the Add IP pool button.
  7. Provide a name for the IP pool. The name you choose helps you easily identify the IP pool. You can't use a special character like "/" in this field.
  8. Enter the address block you want to add in CIDR notation. For example: 192.168.203.0/24
  9. When you provide a valid CIDR range in the Address range (CIDR block) field the Start IP address, End IP address and Available IP addresses fields will automatically populate. They're read-only and automatically generated so you can't change these fields without modifying the value in the Address range field.
  10. After you review the info on the blade and confirm that everything looks correct, select Ok to commit the change and add the address range to Azure Stack Hub.