Fwd: [Action May Be Required] Changes to Cloudflare Infrastructure IPs Listed on cloudflare.com/ips

[José Carlos Chávez]

Does anyone has any clue on this?

José Carlos Chávez

---------- Forwarded message ---------
Fra: 'Cloudflare' via OpenZipkin Admin <openzipk...@googlegroups.com>
Date: tor. 8. apr. 2021 kl. 23:15
Subject: [Action May Be Required] Changes to Cloudflare Infrastructure IPs Listed on cloudflare.com/ips
To: <openzipk...@googlegroups.com>

You can also view this email as a webpage. Cloudflare is making infrastructure changes to simplify customer configuration, and reduce the number of IPv4 addresses that could potentially interact with your origin on Cloudflare’s behalf. If your security model relies on allowing a list of trusted Cloudflare IPs from cloudflare.com/ips (or via API) on your origin, please make the following changes to your allow list by May 7, 2021. This change is safe to make today. Remove: 104.16.0.0/12 Add: 104.16.0.0/13 104.24.0.0/14 This change delists the 104.28.0.0/14 prefix, which is no longer in use by Cloudflare infrastructure. These addresses will be repurposed for use with our Gateway and WARP (secure web gateway and VPN) products, and may carry traffic from untrusted sources in the future. Cloudflare does not recommend enforcing security policy at origins solely by trusting IP addresses. Argo Tunnels and Authenticated Origin Pulls provide more secure and specific ways to secure origin connections from Cloudflare. Further detail on how to configure Argo Tunnels. Further detail on how to configure Authenticated Origin Pulls. If you have further questions, please visit the Cloudflare Community. Regards, The Cloudflare Team THIS IS A SERVICE-RELATED EMAIL This email was sent to openzipk...@googlegroups.com because you are a Cloudflare customer or requested information about Cloudflare services. © 2021 Cloudflare. All Rights Reserved. www.cloudflare.com 101 Townsend St. San Francisco, CA. 94107

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