This section describes an extension to RADIUS functionality in the subscriber management context. As part of subscriber host authentication, RADIUS can respond with access-response message, which, in the case of an accept, can include several RADIUS attributes (standard and vendor-specific) that allow correct provisioning of a given subscriber-host.
Change-of-Authorization (CoA) messages as defined by RFC 3576, Dynamic Authorization Extensions to Remote Authentication Dial In User Service (RADIUS), are supported. The goal of CoA messages is to provide a mechanism for ‟mid-session change” support through RADIUS.