# What IP addresses are reserved for NGINX?

**URL:** <https://community.nginx.org/t/what-ip-addresses-are-reserved-for-nginx/7062>\
**Category:** NGINX\
**Tags:** ip, networking\
**Created:** [September 24, 2025, 6:16am UTC](https://community.nginx.org/t/what-ip-addresses-are-reserved-for-nginx/7062 "2025-09-24T06:16:26Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![YuS2rUQ1FXSkG1W](https://avatars.discourse-cdn.com/v4/letter/y/eada6e/32.png) [@YuS2rUQ1FXSkG1W](https://community.nginx.org/u/YuS2rUQ1FXSkG1W)\
**Post date:** [September 24, 2025, 6:16am UTC](https://community.nginx.org/t/what-ip-addresses-are-reserved-for-nginx/7062/1 "2025-09-24T06:16:26Z")

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I need to calculate **RPS** from **IP addresses** and detect its suspicious activity. I can do it via **logs exploring**.

I need to track only “_external_ _IP addresses_” and addresses don’t belong to the “_Nginx network_”.

I can exclude unnecessary private **IP** addresses (`10.0.0.0/8`, `172.16.0.0/12`, `192.168.0.0/16`). But I don’t understand what’s _Nginx network IP addresses_.

The example I got is mask like `XXX.YYY…` . I’ve tried to search such pattern through the whole configuration at the server where **Nginx** is deployed but have found nothing relevant.

Then I was told “_I can get such addresses from Nginx documentation_”. I’ve searched **Nginx** documentation but have found nothing like reserved **IP** addresses.

What am I missing?

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**Author:** ![MikeJang](https://drob5swvtjqxg.cloudfront.net/user_avatar/community.nginx.org/mikejang/32/233_2.png) [@MikeJang](https://community.nginx.org/u/MikeJang)\
**Post date:** [September 24, 2025, 6:33pm UTC](https://community.nginx.org/t/what-ip-addresses-are-reserved-for-nginx/7062/2 "2025-09-24T18:33:44Z")

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To connect with NGINX Agent, you need to allow appropriate firewall rules through the following address ranges:

 ![Screenshot 2025-09-24 at 11.33.05 AM](https://d7a5pgbt9tjl6.cloudfront.net/original/2X/b/b185654365124359dc651101178dc56686a81035.png)

source: [F5 NGINX One Console | NGINX Documentation](https://docs.nginx.com/nginx-one/getting-started/#install-nginx-agent)

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**Author:** ![jodie.p\_nginx](https://drob5swvtjqxg.cloudfront.net/user_avatar/community.nginx.org/jodie.p_nginx/32/203_2.png) [@jodie.p\_nginx](https://community.nginx.org/u/jodie.p_nginx)\
**Post date:** [September 24, 2025, 10:26pm UTC](https://community.nginx.org/t/what-ip-addresses-are-reserved-for-nginx/7062/3 "2025-09-24T22:26:34Z")

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NGINX doesn’t have any reserved IP addresses. It uses the IP address(es) assigned to the environment (server, VM, etc.) in which it runs. It sounds like you are trying to discover what IP address range is assigned to the network in which NGINX is running.

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**Author:** ![alessandro](https://drob5swvtjqxg.cloudfront.net/user_avatar/community.nginx.org/alessandro/32/4836_2.png) [@alessandro](https://community.nginx.org/u/alessandro)\
**Post date:** [October 1, 2025, 5:35pm UTC](https://community.nginx.org/t/what-ip-addresses-are-reserved-for-nginx/7062/4 "2025-10-01T17:35:38Z")

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To add to the above, you should be able to figure out which IP your machine is using by running either `ipconfig` or `ifconfig` depending on your OS 🙂

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**Author:** ![system](https://drob5swvtjqxg.cloudfront.net/user_avatar/community.nginx.org/system/32/19_2.png) [@system](https://community.nginx.org/u/system)\
**Post date:** [October 8, 2025, 5:36pm UTC](https://community.nginx.org/t/what-ip-addresses-are-reserved-for-nginx/7062/5 "2025-10-08T17:36:29Z")

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