Enable Site Shield Stable CIDRs

1. Go to ☰ > WEB & DATA CENTER SECURITY > Security Configurations > Site Shield.
2. Click the name of your map.
3. Click Enable Stable CIDRs.
4. In the Upgrade to Site Shield Stable CIDRs prompt, click Continue.
   A status message informing you that the upgrade is pending and that you will get an email when it’s ready appears.
5. Work with your firewall team to add a new ACL at all customer origin(s) and ensure that you leave the existing Site Shield ACL in place for at least a week.
6. After the ACL changes are implemented for all the origin firewalls, go to the Update Firewall Allowlist tab, and in the field, enter YES

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The value must be YES, no matter which language you use.

7. Click Yes, I updated my firewall.
   A success status message appears.

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A week after you perform this procedure, your firewall team can remove the older ACL, as traffic should be flowing through the new CIDR list.