A company is implementing HPE Aruba Networking Wireless IDS/IPS (WIDS/WIPS) on its AOS-10 APs, which are managed in HPE Aruba Networking Central.
What is one requirement for enabling detection of rogue APs?
To enable the detection of rogue APs with HPE Aruba Networking Wireless IDS/IPS (WIDS/WIPS) on AOS-10 APs managed in HPE Aruba Networking Central, each AP must have a Foundation with Security license. This license enables advanced security features, including rogue AP detection, which is crucial for maintaining a secure wireless environment and protecting against unauthorized access points.
Refer to the exhibit.

(Note that the HPE Aruba Networking Central interface shown here might look slightly different from what you see in your HPE Aruba Networking Central
interface as versions change; however, similar concepts continue to apply.)
An HPE Aruba Networking 9x00 gateway is part of an HPE Aruba Networking Central group that has the settings shown in the exhibit. What would cause the
gateway to drop traffic as part of its IDPS settings?
In the exhibit, the HPE Aruba Networking Central settings for the 9x00 gateway show that traffic inspection is enabled, and the gateway is set to operate in IDS (Intrusion Detection System) mode with the fail strategy set to 'Block'. This configuration means that the gateway will drop traffic if it matches a rule in the active ruleset.
1.Active Ruleset: The ruleset version 9861 is active, and the gateway is configured to automatically update the ruleset daily.
2.Traffic Matching Rules: When traffic matches a rule in the active ruleset, it is flagged as suspicious or malicious.
3.Block Mode: Since the fail strategy is set to 'Block', any traffic that matches a rule in the active ruleset will be dropped to prevent potential threats.
A port-access role for AOS-CX switches has this policy applied to it:
plaintext
Copy code
port-access policy mypolicy
10 class ip zoneC action drop
20 class ip zoneA action drop
100 class ip zoneB
The classes have this configuration:
plaintext
Copy code
class ip zoneC
10 match tcp 10.2.0.0/16 eq https
class ip zoneA
10 match ip any 10.1.0.0/16
class ip zoneB
10 match ip any 10.0.0.0/8
The company wants to permit clients in this role to access 10.2.12.0/24 with HTTPS. What should you do?
Comprehensive Detailed Explanation
The requirement is to permit HTTPS traffic from clients to the 10.2.12.0/24 subnet.
ZoneC is configured to drop all HTTPS traffic to the 10.2.0.0/16 subnet. Therefore, the first match in the zoneC class (priority 10) will drop the desired traffic.
To override this behavior, you must add a higher-priority rule (lower rule number) to zoneC that explicitly matches 10.2.12.0/24 and permits the traffic.
Thus, adding the rule 5 match any 10.2.12.0/24 eq https to zoneC ensures the desired traffic is permitted while maintaining the drop behavior for the rest of 10.2.0.0/16.
Reference
AOS-CX Role-Based Access Control documentation.
Understanding class priority and policy rule ordering in AOS-CX.
A company has Aruba APs that are controlled by Central and that implement WIDS. When you check WIDS events, you see a "detect valid SSID misuse" event. What can you interpret from this event, and what steps should you take?
The 'Detect Valid SSID Misuse' event in Aruba's Wireless Intrusion Detection System (WIDS) indicates that a valid SSID, associated with your network, is being broadcast from an unauthorized source. This scenario often signals a potential rogue access point attempting to deceive clients into connecting to it (e.g., for credential harvesting or man-in-the-middle attacks).
1. Explanation of Each Option
A . Clients are failing to authenticate to corporate SSIDs. You should first check for misconfigured authentication settings and then investigate a possible threat:
Incorrect:
This event is not related to authentication failures by legitimate clients.
Misconfigured authentication settings would lead to events like 'authentication failures' or 'radius issues,' not 'valid SSID misuse.'
B . Admins have likely misconfigured SSID security settings on some of the company's APs. You should have them check those settings:
Incorrect:
This event refers to an external device broadcasting your SSID, not misconfiguration on the company's authorized APs.
WIDS differentiates between valid corporate APs and rogue APs.
C . Hackers are likely trying to pose as authorized APs. You should use the detecting radio information and immediately track down the device that triggered the event:
Correct:
This is the most likely cause of the 'detect valid SSID misuse' event. A rogue AP broadcasting a corporate SSID could lure clients into connecting to it, exposing sensitive credentials or traffic.
Immediate action includes:
Using the radio information from the event logs to identify the rogue AP's location.
Physically locating and removing the rogue device.
Strengthening WIPS/WIDS policies to prevent further misuse.
D . This event might be a threat but is almost always a false positive. You should wait to see the event over several days before following up on it:
Incorrect:
While false positives are possible, 'valid SSID misuse' is a critical security event that should not be ignored.
Delaying action increases the risk of successful attacks against your network.
2. Recommended Steps to Address the Event
Review Event Logs:
Gather details about the rogue AP, such as SSID, MAC address, channel, and signal strength.
Locate the Rogue Device:
Use the detecting AP's radio information and signal strength to triangulate the rogue AP's physical location.
Respond to the Threat:
Remove or disable the rogue device.
Notify the security team for further investigation.
Prevent Future Misuse:
Strengthen security policies, such as enabling client whitelists or enhancing WIPS protection.
Reference
Aruba WIDS/WIPS Configuration and Best Practices Guide.
Aruba Central Security Event Analysis Documentation.
Wireless Threat Management Using Aruba Networks.
What is a use case for the HPE Aruba Networking ClearPass OnGuard dissolvable agent?
The use case for the HPE Aruba Networking ClearPass OnGuard dissolvable agent is implementing a one-time compliance scan. The dissolvable agent is designed to perform a compliance check without requiring a permanent installation on the client device. This is ideal for environments where a quick, temporary assessment of the device's security posture is needed without the overhead of a persistent agent.
1.Dissolvable Agent: The dissolvable agent is downloaded and executed on the client device for a single session, performing the necessary compliance checks before being removed automatically.
2.One-time Compliance Scan: This method is particularly useful for guest or unmanaged devices where a temporary compliance scan is sufficient to ensure security standards are met.
3.Minimal Impact: Since the agent does not persist on the client device, it minimizes the impact on the user's system and does not require ongoing maintenance or updates.
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