1. A method performed by a network system, the method comprising: receiving a device credential from an end-user device communicatively coupled to the network system over a wireless access network; obtaining a service policy based at least in part on the device credential, the service policy being applicable to the end-user device; obtaining service processor authentication information associated with a service processor on the end-user device, the service processor comprising one or more device agents at least assisting to implement the service policy; and using the service processor authentication information, facilitating execution of an end-user device service processor authentication procedure.