IP range that used for Cisco DUO

Please need to know all IP ranges that used by Cisco DUO as i already adding the below list but still request another IP from Microsoft Azure, so there is any other IP ranges should i adding them to firewall.

Apprieacite your help


Hi @mrmarie ,

As mentioned in the same KB article (https://help.duo.com/s/article/1337?language=en_US), if your organization uses Duo’s Microsoft Azure Active Directory Conditional Access application, you may need to add the following Duo hostnames to your allow list, depending on the location of your organization’s Duo deployment:

Hope this helps!

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