Azure Login to Device's Web Interface
If you configure the device to enable login through Azure AD, the Web Login page includes the Login with Azue AD button, and the 'Username' and 'Password' fields for local login using the Local Users table (or using RADIUS or LDAP).
If you configure the device to enable login only through Azure AD, the Web Login page only displays the Login with Azue AD button.
If you click Login with Azure AD, you are prompted to enter your Microsoft Azure credentials (which may include two-factor authentication). When login authentication completes successfully you are redirected back to the device's Web interface and logged in with the access level according to the Role assigned to you by Azure AD.