For legacy behavior, no configuration changes to the DAP feature, including the default DAP record, DfltAccessPolicy, are required as shown in Figure 3. For example, enforcing access control via Tunnel Groups, Group Policies, and AAA without the explicit enforcement of DAP can still obtain this behavior. However, AAA Attributes, including the overall DAP record, are validated during user authentication.īefore the introduction and implementation of DAP, access policy attribute/value pairs that were associated with a specific user tunnel or session were defined either locally on the ASA, (that is, Tunnel Groups and Group Policies) or mapped via external AAA servers.ĭAP is always enforced by default. Endpoint Assessment Attributes are obtained and sent to the security appliance before user authentication. These include Basic Host Scan, Secure Desktop, Standard/Advanced Endpoint Assessment, and NAC as shown in Figure 2. In addition to AAA attributes, the security appliance can also obtain endpoint security attributes by using the posture assessment methods that you configure. You can specify AAA attributes from the Cisco AAA attribute hierarchy, or from the full set of response attributes that the security appliance receives from a RADIUS or LDAP server as shown in Figure 1. The security appliance can select multiple DAP records depending on this information, which it then aggregates to assign DAP authorization attributes. The security appliance can select DAP records based on the AAA authorization information for the user. DAP and AAA AttributesĭAP complements AAA services and provides a limited set of authorization attributes that can override attributes that AAA provides. Avoid the CLI, and always use ASDM to manage DAP policies. Note: Trying to configure the dynamic-access-policy-record access parameters via the CLI can cause DAP to stop working although ASDM would correctly manage the same. It then applies the DAP record to the user tunnel or session. It selects these DAP records based on the endpoint security information of the remote device and/or AAA authorization information for the authenticated user. It generates a DAP throughout user authentication by selecting and/or aggregating attributes from one or more DAP records. These attributes address issues of multiple group membership and endpoint security.įor example, the security appliance grants access to a particular user for a particular session based on the policies you define. You create a dynamic access policy by setting a collection of access control attributes that you associate with a specific user tunnel or session. The task of authorizing users is much more complicated in a dynamic VPN environment than it is in a network with a static configuration.ĭynamic access policies (DAP), are a feature that enables you to configure authorization that addresses the dynamics of VPN environments. Multiple variables can affect each VPN connection for example, intranet configurations that frequently change, the various roles each user can inhabit within an organization, and logins from remote access sites with different configurations and levels of security. Virtual Private Network (VPN) gateways operate in dynamic environments. If your network is live, ensure that you understand the potential impact of any command. All of the devices used in this document started with a cleared (default) configuration. The information in this document was created from the devices in a specific lab environment. This document is not restricted to specific software and hardware versions. Prerequisites RequirementsĬisco recommends that you know these topics: This document describes the deployment, features, and usage of ASA 9.x Dynamic access policies (DAP).
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