> For the complete documentation index, see [llms.txt](https://docs.glesys.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.glesys.com/products/connectivity/ip-addresses/how-tos.md).

# How-tos

- [Reserve IP addresses](https://docs.glesys.com/products/connectivity/ip-addresses/how-tos/reserve-ip-addresses.md): You can reserve IP address for both KVM and VMware servers.
- [Delete IP addresses](https://docs.glesys.com/products/connectivity/ip-addresses/how-tos/delete-ip-addresses.md): You can remove any IP addresses that you no longer need or want.
- [Change PTR records](https://docs.glesys.com/products/connectivity/ip-addresses/how-tos/change-ptr-records.md): PTR records are used to reverse lookup; that is, to lookup a hostname for an IP address.
- [Find gateway and netmask](https://docs.glesys.com/products/connectivity/ip-addresses/how-tos/find-gateway-and-netmask.md): To use an IP address in your VMware or KVM VM, you'll need to know  it's gateway and netmask.
- [Convert the netmask between different formats](https://docs.glesys.com/products/connectivity/ip-addresses/how-tos/find-gateway-and-netmask/convert-the-netmask-between-different-formats.md): There are several ways to write a netmask. This guide will explain the different formats and how to convert between them.
- [Cost overview](https://docs.glesys.com/products/connectivity/ip-addresses/how-tos/cost-overview.md): A cost summary of all the project IP addresses is available in the control panel.


---

# 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 dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.glesys.com/products/connectivity/ip-addresses/how-tos.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
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.