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ArubaOS-Switches can use sFlow technology to sample network traffic and send the samples to a collector, such as ClearPass Policy Manager (CPPM), for analysis. sFlow can be configured to capture various types of traffic, including HTTP, which typically contains User-Agent strings that can be used for device fingerprinting and classification.

To support the requirement for using HTTP User-Agent strings to classify endpoints, the switches would need to be configured to send sFlow samples containing HTTP traffic to CPPM. CPPM would then analyze these samples and use the User-Agent strings to classify the devices.

Therefore, the correct action to configure ArubaOS-Switches would involve:

• Configuring CPPM as the sFlow collector on the switches.
• Enabling sFlow on the edge ports that connect to endpoints.

This approach allows the network traffic to be analyzed by CPPM without requiring any additional mirroring or redirection of traffic, which would be resource-intensive and potentially disruptive to network performance.

Adding Aruba Airwave to an Aruba solution that includes a Mobility Master (MM), Mobility Controllers (MCs), and campus APs offers several benefits, notably in the realm of network forensics. One of the significant advantages is that Airwave can retain detailed information about the network for much longer periods than what is typically possible with just ArubaOS solutions. This extensive data retention is crucial for forensic analysis, allowing network administrators and security professionals to conduct thorough investigations of past incidents. With access to historical data, professionals can identify trends, pinpoint security breaches, and understand the impact of specific changes or events within the network over time.

References:

• Aruba's official product documentation and user guides for Airwave and ArubaOS, which outline features, benefits, and use cases related to network management and forensic capabilities.
• Industry case studies and whitepapers that discuss the implementation and advantages of integrating Airwave into existing network infrastructure for enhanced monitoring and security.

Opportunistic Wireless Encryption (OWE) provides encrypted communications on open Wi-Fi networks, which addresses the company's desire to have encryption without requiring a password for guests. It can work in transition mode, which allows for the use of OWE by clients that support it, while still permitting legacy clients to connect without encryption. Combining this with a captive portal enables the desired welcome web page for guests to log in.