---
description: Reference for Network Firewall fields and functions.
title: Reference
image: https://developers.cloudflare.com/og-docs.png
---

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> Fetch the complete documentation index at: https://developers.cloudflare.com/cloudflare-network-firewall/llms.txt  
> Use this file to discover all available pages before exploring further.

# Reference

Last updated Aug 24, 2026|Copy as Markdown|[View as Markdown](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/cloudflare-network-firewall/reference/index.md)|[Agent setup](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/agent-setup/)

Review the content below for more information about Cloudflare Network Firewall (formerly Magic Firewall).

* [Cloudflare Network Firewall fields](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/cloudflare-network-firewall/reference/network-firewall-fields/)
* [Cloudflare Network Firewall functions](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/ruleset-engine/rules-language/functions/#cloudflare-network-firewall-functions)

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