Three Conditions for Client Exclusion Policy Triggers

ABC.

The Cisco WLC will exclude clients when specific conditions are met: -> Excessive 802.11 Association Failures after five consecutive failures.

-> Excessive 802.11 Authentication Failures after five consecutive failures.

-> 802.1X Authentication Failures after three consecutive failures.

-> IP Theft or IP Reuse if the IP address, being obtained by the client, is already assigned to another device.

-> Excessive Web AuthenticationFailures after three consecutive failures.

A client exclusion policy is a feature that allows the WLAN infrastructure to identify rogue or problematic clients and exclude them from connecting to the network. This feature is particularly useful in high-density environments where there are many clients competing for limited wireless resources.

The following are the three conditions that can trigger a client exclusion policy:

1. Excessive 802.11 association failures: This condition occurs when a client attempts to join a wireless network but fails to complete the association process. Association failures can occur due to a variety of reasons such as incorrect security settings, incompatible client hardware or software, or interference from other wireless networks. If a client exceeds a predefined number of association failures within a specific timeframe, the WLAN infrastructure can trigger a client exclusion policy.

2. Excessive 802.1x authentication failures: This condition occurs when a client fails to authenticate with the network using the 802.1x authentication protocol. Authentication failures can occur due to incorrect credentials, invalid certificates, or other authentication-related issues. If a client exceeds a predefined number of authentication failures within a specific timeframe, the WLAN infrastructure can trigger a client exclusion policy.

3. IP theft or IP reuse: This condition occurs when a client attempts to use an IP address that is already in use by another client on the network or when a client attempts to use a static IP address that is not assigned to it. IP theft or reuse can cause network connectivity issues and can lead to IP conflicts. If a client is detected engaging in IP theft or reuse, the WLAN infrastructure can trigger a client exclusion policy.

The other options listed in the question, such as excessive 802.11 probe request failures, excessive 802.1x authorization failures, and excessive 802.11 packet retries, are not conditions that can trigger a client exclusion policy. These conditions may indicate issues with the client's wireless connectivity or network configuration, but they do not necessarily indicate a security or performance problem that would require the WLAN infrastructure to exclude the client from the network.