Issue with IP Whitelisting Configuration in Azure Front Door

Question

Issue with IP Whitelisting Configuration in Azure Front Door

Shubham Sanap 120

We are using a web application with Azure Front Door service and are trying to implement IP whitelisting. Unfortunately, the setup is not functioning as expected. We need assistance in troubleshooting and fixing this issue.

Please provide support as soon as possible.

Yutaka_K_JP 1,645 Reputation points

2026-02-17T12:04:35.9166667+00:00

I think that… seen AFD miss allow‑lists when the rule order gets out of line. pls check the rule chain and cold‑reload the polcy, then test again… it starts behaving once the eval resets…
Venkatesan S 6,435 Reputation points Microsoft External Staff Moderator

2026-02-17T12:05:14.27+00:00

Hi Shubham Sanap,

Thank you for contacting us about the web application with Azure Front Door service issue. We have begun looking into it and will share our suggestions with you as soon as possible. If you have any additional details or concerns in the meantime, please let us know. We appreciate your patience while we work on this.

Answer accepted by question author

0 additional answers

Your answer

Yutaka_K_JP 1,645 Reputation points

2026-02-17T12:04:35.9166667+00:00

I think that… seen AFD miss allow‑lists when the rule order gets out of line. pls check the rule chain and cold‑reload the polcy, then test again… it starts behaving once the eval resets…
Venkatesan S 6,435 Reputation points Microsoft External Staff Moderator

2026-02-17T12:05:14.27+00:00

Hi Shubham Sanap,

Thank you for contacting us about the web application with Azure Front Door service issue. We have begun looking into it and will share our suggestions with you as soon as possible. If you have any additional details or concerns in the meantime, please let us know. We appreciate your patience while we work on this.

Answer 1

Hi @ Shubham Sanap,

Welcome to Microsoft Q&A Platform.

As discussed, Azure Front Door/WAF takes time to propagate the configuration changes.

Please allow some time and check again. If you are still facing the issue, clear your browser cache and cookies and try again.

If the error persists, review the FrontDoorWebApplicationFirewallLog to identify the IP address from which the traffic is reaching Azure Front Door.

WAF logs

Follow the doc to Enable logging through the Azure portal
User's image

Refer the link: https://dori-uw-1.kuma-moon.com/en-us/answers/questions/5628116/azure-front-door-propagation-time

Pleaseand “up-vote” wherever the information provided helps you, this can be beneficial to other community members.

Share via

Issue with IP Whitelisting Configuration in Azure Front Door

0 additional answers

Your answer