OpenAI:

- [https://platform.openai.com/docs/actions/production/ip-egress-ranges](https://platform.openai.com/docs/actions/production/ip-egress-ranges)
- [https://en.wikipedia.org/wiki/Classless_Inter-Domain_Routing](https://en.wikipedia.org/wiki/Classless_Inter-Domain_Routing)
- [https://openai.com/chatgpt-actions.json](https://openai.com/chatgpt-actions.json) - ChatGPT will call your action from an IP address from one of the following CIDR blocks

Internal:

- WAF rules
  - rules which define how to inspect HTTP/HTTPS web traffic (requests) to an application

OpenAI GPT Actions and IP egress ranges