Which Cisco command enables authentication, authorization, and accounting globally so that CoA is supported on...

The aaa server radius dynamic-author command enables authentication, authorization, and accounting (AAA) globally on the device so that Change of Authorization (CoA) is supported. CoA is a feature that allows an external AAA server to dynamically change the attributes of a user session after it is authenticated. For example, the AAA server can send a CoA request to reauthenticate a user, terminate a session, or apply a new policy. The aaa server radius dynamic-author command specifies the IP address and port number of the device that listens for CoA requests from the AAA server. The command also configures the shared secret key that is used to encrypt the communication between the device and the AAA server12. References := 1: Implementing and Operating Cisco Security Core Technologies (SCOR) v1.0, Module 3: Securing Networks with Cisco Firepower Next Generation Firewall, Lesson 3.2: Deploying Cisco Firepower Next-Generation Firewall, Topic 3.2.2: Cisco Firepower NGFW Device Management 2: Authentication, Authorization, and Accounting Configuration Guide, Cisco IOS Release 15SY - RADIUS Change of Authorization [Support] - Cisco3