> For the complete documentation index, see [llms.txt](https://docs.duplocloud.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.duplocloud.com/docs/automation-platform/overview-2/azure-services/public-ip-address-prefix.md). # Public IP Address Prefix Use a Public IP Address to reserve a range of consecutive public IPs A [Public IP Address Prefix](https://learn.microsoft.com/en-us/azure/virtual-network/ip-services/public-ip-address-prefix) reserves a range of consecutive public IP addresses that you can individually assign to public resources. This is useful for scaling because it provides a globally unique address space, supports expansion across locations, facilitates load balancing, enables secure access control, and is fundamental for connecting to multiple ISPs and participating in internet routing protocols. ## Adding a Public IP Address Prefix 1. Select the correct **Tenant** from the Tenant list in the upper left. 2. In the DuploCloud Portal, navigate to **Cloud Services** -> **App Integration**. 3. Click on the **Public IP Prefix** tab.

The Public IP Prefix tab.

4. Click **Add**. The **Add Public IP Prefix** pane displays. 5. In the **Name** field, enter a name. Select your desired length (number of addresses) from the **Prefix Length** item list. Select the resource type from the **Resource Type** item list.

The Add Public IP Prefix pane.

6. Click **Add**. Your **Public IP Prefix** is created. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation by asking a question. Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters: ``` GET https://docs.duplocloud.com/docs/automation-platform/overview-2/azure-services/public-ip-address-prefix.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.