Routing data for iOS devices through a proxy server
For iOS devices that run iOS 6.0 or later that are supervised using Apple Configurator, you can direct all HTTP traffic to and from the personal space on devices through a proxy server behind your organization’s firewall. To route data from the personal space through a proxy server, you must create and assign a global HTTP proxy profile to user accounts or groups. Global HTTP proxy profiles support proxy servers that use Basic Authentication, Integrated Authentication, or no authentication.