Origin IP Access Control List (Origin IP ACL) offers some protection for your origin server by restricting traffic to Akamai-controlled IP addresses. Akamai maintains a small and stable list of IP addresses that you use in policy rules in your origin server's firewall. These IP addresses are represented in a list using classless inter-domain routing (CIDR). CIDR is an IP addressing scheme that improves the allocation of IP addresses by using a single IP address with a prefix at the end to designate many, unique IP addresses. With Origin IP ACL, requests from edge servers to your origin will always be sourced from an address in one of these prefixes.
You need to add these addresses to your origin server for access.
The requirements and setup for Origin IP ACL vary based on the Akamai product you're adding it to:
We're working on support for Ion (Standard and Premier) and Dynamic Site Accelerator. Check back for a future release.
There are some limitations on the use of Origin IP ACL and some additional recommendations. Review these points before going live with it in your delivery workflow.
Updated about 21 hours ago