300-715 Exam Dumps - Cisco CCNP Security Questions and Answers

https://medium.com/training-course-ccna-security-210-260/ccna-security-part-3-implementing-aaa-in-cisco-ios-4b13ab285f51

In the context of a wired 802.1X deployment with Cisco ISE, the requirement is to log failed authentications while minimizing user impact. Let's analyze each option:

A. authentication open - This command configures the port to allow network access regardless of the authentication state. It's useful in situations where specific devices can't perform 802.1X authentication but should still be allowed network access. However, it doesn't specifically address the logging of failed authentications.

B. pae dot1x enabled - PAE (Port Access Entity) refers to the entity on a network device that enforces access control. This command enables 802.1X on the port, which is a prerequisite for implementing 802.1X, but doesn't directly relate to logging failed authentication attempts.

C. authentication host-mode multi-auth - This command configures the port to allow multiple authenticated sessions. This mode is used when multiple devices are connected to the same port (like in a conference room). While it's relevant for 802.1X environments, it doesn't specifically cater to logging failed authentications or minimizing user impact.

D. monitor-mode enabled - This command is used in the context of 802.1X to enable Monitor Mode on a port. Monitor Mode allows a port to grant limited network access to endpoints without 802.1X capabilities. It's often used to ease the deployment of 802.1X by monitoring the authentication status without fully enforcing access control, thereby minimizing user impact. It also helps in logging authentication attempts, including failures.

Given these options, the most appropriate command for logging failed authentications while having minimal impact on users would be D. monitor-mode enabled. This command ensures that authentication attempts are monitored and logged, including failures, without fully restricting access, thus minimizing the impact on users who might face issues with the authentication process.

https://www.cisco.com/en/US/docs/switches/lan/catalyst3850/software/release/3.2_0_se/multib ook/configuration_guide/b_consolidated_config_guide_3850_chapter_0111001.html

https://www.oreilly.com/library/view/cisco-ise-for/9780133103632/ch16.html#:~:text=What%20is%20a%20supplicant%3F,networks%2C%20both%20wired%20and%20wireless.&text=The%20802.1X%20transactions%20are,Identity%20Services%20Engine%20(ISE).

https://www.cisco.com/c/en/us/td/docs/security/ise/2-1/admin_guide/b_ise_admin_guide_21/b_ise_admin_guide_20_chapter_0100010.html

TACACS+ Profile

TACACS+ profiles control the initial login session of the device administrator. A session refers to each individual authentication, authorization, or accounting request. A session authorization request to a network device elicits an ISE response. The response includes a token that is interpreted by the network device, which limits the commands that may be executed for the duration of a session. The authorization policy for a device administration access service can contain a single shell profile and multiple command sets. The TACACS+ profile definitions are split into two components:

Common tasks

Custom attributes

There are two views in the TACACS+ Profiles page (Work Centers > Device Administration > Policy Elements > Results > TACACS Profiles)—Task Attribute View and Raw View. Common tasks can be entered using the Task Attribute View and custom attributes can be created in the Task Attribute View as well as the Raw View.

The Common Tasks section allows you to select and configure the frequently used attributes for a profile. The attributes that are included here are those defined by the TACACS+ protocol draft specifications. However, the values can be used in the authorization of requests from other services. In the Task Attribute View, the ISE administrator can set the privileges that will be assigned to the device administrator. The common task types are:

Shell

WLC

Nexus

Generic

The Custom Attributes section allows you to configure additional attributes. It provides a list of attributes that are not recognized by the Common Tasks section. Each definition consists of the attribute name, an indication of whether the attribute is mandatory or optional, and the value for the attribute. In the Raw View, you can enter the mandatory attributes using a equal to (=) sign between the attribute name and its value and optional attributes are entered using an asterisk (*) between the attribute name and its value. The attributes entered in the Raw View are reflected in the Custom Attributes section in the Task Attribute View and vice versa. The Raw View is also used to copy paste the attribute list (for example, another product's attribute list) from the clipboard onto ISE. Custom attributes can be defined for nonshell services.