Dell Powerconnect W-ClearPass Virtual Appliances W-ClearPass Guest 6.0 Deploym - Page 18

ClearPass Guest is part of your network's core infrastructure and manages guest access to the network. NAS devices, such as wireless access points and wired switches on the edge of the network, use the RADIUS protocol to ask ClearPass Policy Manager to authenticate the username and password provided by a guest logging in to the network. If authentication is successful, the guest is then authorized to access the network. Roles are assigned to a guest as part of the context ClearPass Policy Manager uses to apply its policies. RADIUS attributes that define a role's access permissions are contained within Policy Manager's Enforcement Profile. Additional features such as role mapping for ClearPass Guest can be performed in ClearPass Policy Manager. The network usage of authorized guests is monitored by the NAS and reported in summary form to ClearPass Policy Manager using RADIUS accounting, which allows administrators to generate network reports in ClearPass Insight. AAA Framework ClearPass Guest is built on the industry standard AAA framework, which consists of authentication, authorization, and accounting components. The following figure shows how the different components of this framework are employed in a guest access scenario. Figure 4: Sequence diagram for network access using AAA In the standard AAA framework, network access is provided to a user according to the following process: l The user connects to the network by associating with a local access point [1]. 18 | AAA Framework Dell Networking W-ClearPass Guest 6.0 | Deployment Guide