Dell PowerConnect W-7200 Series ArubaOS 6.2 User Guide - Page 201
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server-cert ca-cert Configuring User and Machine Authentication When a Windows device boots, it logs onto the network domain using a machine account. Within the domain, the device is authenticated before computer group policies and software settings can be executed; this process is known as machine authentication. Machine authentication ensures that only authorized devices are allowed on the network. You can configure 802.1x for both user and machine authentication (select the Enforce Machine Authentication option described in Table 61). This tightens the authentication process further since both the device and user need to be authenticated. Working with Role Assignment with Machine Authentication Enabled When you enable machine authentication, there are two additional roles you can define in the 802.1x authentication profile: l l Machine authentication default machine role Machine authentication default user role While you can select the same role for both options, you should define the roles as per the polices that need to be enforced. Also, these roles can be different from the 802.1x authentication default role configured in the AAA profile. With machine authentication enabled, the assigned role depends upon the success or failure of the machine and user authentications. In certain cases, the role that is ultimately assigned to a client can also depend upon attributes returned by the authentication server or server derivation rules configured on the controller. Table 62 describes role assignment based on the results of the machine and user authentications. Table 62: Role Assignment for User and Machine Authentication Machine Auth Status Failed User Auth Status Failed Description Both machine authentication and user authentication failed. L2 authentication failed. Machine authentication fails (for example, the machine information is not present on the server) and user authentication succeeds. Server-derived roles do not apply. Machine authentication succeeds and user authentication has not been initiated. Serverderived roles do not apply. Both machine and user are successfully authenticated. If there are server-derived roles, the role assigned via the derivation take precedence. This is the only case where server-derived roles are applied. Role Assigned No role assigned. No access to the network allowed. Failed Passed Machine authentication default user role configured in the 802.1x authentication profile. Passed Failed Machine authentication default machine role configured in the 802.1x authentication profile. A role derived from the authentication server takes precedence. Otherwise, the 802.1x authentication default role configured in the AAA profile is assigned. Passed Passed For example, if the following roles are configured: l l 802.1x authentication default role (in AAA profile): dot1x_user Machine authentication default machine role (in 802.1x authentication profile): dot1x_mc 201 | 802.1X Authentication Dell PowerConnect W-Series ArubaOS 6.2 | User Guide
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