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A company has a third-party security appliance deployed in its data center. The company wants to pass all traffic for certain clients through that device before forwarding that traffic toward its ultimate destination.
Which AOS-CX switch technology fulfills this use case?
Comprehensive Detailed Explanation
Virtual Network Based Tunneling (VNBT) is the appropriate technology for this use case because:
Traffic Steering: VNBT enables traffic from specific clients or devices to be tunneled through a predefined network path. This allows traffic to pass through intermediate devices such as third-party security appliances.
Policy Enforcement: VNBT can be configured to route traffic based on roles, VLANs, or other policy definitions, ensuring that only specified traffic flows are redirected to the security appliance.
Scalability: This approach simplifies the redirection of traffic without requiring complex physical rewiring or changes to the underlying network topology.
Other Options:
MC-LAG: Primarily used for high-availability and redundancy in multi-chassis link aggregation scenarios, not for traffic redirection through appliances.
Network Analytics Engine (NAE): Used for monitoring and analytics, not traffic steering or forwarding.
Device Profiles: Helps automate switch port configurations for specific device types but does not handle traffic redirection.
Reference
AOS-CX Virtual Network Based Tunneling (VNBT) documentation.
Aruba Switch Architecture and Traffic Flow Control Best Practices Guide.
(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.
You have created a Web-based Health Check Service that references a posture policy. You want the service to trigger a RADIUS change of authorization (CoA) when a client receives a Healthy or Quarantine posture. Where do you configure those rules?
RADIUS Change of Authorization (CoA):
CoA is triggered when ClearPass determines that a client's posture status has changed (e.g., Healthy, Quarantine).
The RADIUS enforcement policy is where you configure actions and enforcement profiles that respond to these posture changes.
Option Analysis:
Option A: Correct. RADIUS enforcement policies are used to configure actions, including triggering CoA.
Option B: Incorrect. OnGuard settings configure posture agent behavior, not enforcement rules.
Option C: Incorrect. The posture policy evaluates compliance but does not trigger CoA.
Option D: Incorrect. WEBAUTH enforcement policies are for web-based authentication, not posture-related CoA.
An AOS-CX switch has been configured to implement UBT to two HPE Aruba Networking gateways that implement VRRP on the users' VLAN. What correctly describes how the switch tunnels UBT users' traffic to those gateways?
User-Based Tunneling (UBT) with VRRP:
UBT allows traffic from authenticated users to be tunneled to an HPE Aruba Networking gateway.
In the case of VRRP, where two gateways are configured for redundancy, the AOS-CX switch will always send the traffic to the primary gateway defined in the UBT zone configuration.
The VRRP state (master/backup) does not impact the UBT decision; the UBT primary configuration takes precedence.
Option Analysis:
Option A: Incorrect. UBT does not strictly follow the VRRP master; it adheres to the UBT primary gateway configuration.
Option B: Correct. The switch tunnels all traffic to the primary gateway configured in the UBT zone.
Option C: Incorrect. UBT does not load-share traffic between gateways.
Option D: Incorrect. UBT uses the primary gateway configured in the UBT zone, not dynamically determined active devices.
A company wants to apply role-based access control lists (ACLs) on AOS-CX switches, which are implementing authentication to HPE Aruba Networking ClearPass Policy Manager (CPPM). The company wants to centralize configuration as much as possible. Which correctly describes your options?
Centralized Role Configuration on CPPM:
CPPM can assign roles to clients dynamically during authentication.
However, the actual ACL policies (e.g., firewall policies) must already exist and be referenced locally on the switch.
CPPM cannot directly configure ACL details on AOS-CX switches.
Option Analysis:
Option A: Correct. The role is defined on CPPM, but it references a policy pre-configured on the switch.
Option B: Incorrect. This does not align with Aruba's centralized role-based access control design.
Option C: Incorrect. CPPM cannot configure the ACL policies and classes directly; they must exist locally.
Option D: Incorrect. Policies can be referenced centrally but not fully configured on CPPM.
