> For the complete documentation index, see [llms.txt](https://docs.verygoodsecurity.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.verygoodsecurity.com/vault/http-proxy/ip-allowlisting.md). # IP Allowlisting IP allowlisting allows you to explicitly restrict access to specific IP addresses and/or CIDR notations for APIs. We highly recommend using this feature as an additional security protection. The feature is available for both **Inbound and Outbound** routes. Enable IP allowlisting on a route: * Enter an IP or CIDR to match the IP address the request is made from. For example `172.16.254.1`, `2001:db8:0:1234:0:567:8:1`, `192.168.1.15/24`. Multiple IP addresses could be added separated by a comma * Click return * Save the route --- # 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.verygoodsecurity.com/vault/http-proxy/ip-allowlisting.md?ask= ``` 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.