A company wants to enforce these controls on clients assigned to ''role1'':
DHCP permitted DNS permitted All other access to 10.0.0.0/8 denied All other traffic permitted
You have so far configured these settings:
class ip class1 10 match udp any any eq 67 20 match udp any any eq 53 30 match tcp any any eq 53
class ip class2 10 match any any 10.0.0.0/255.0.0.0
port-access policy policy1 10 class ip class1 20 class ip class2 action drop
port-access role role1 associate policy policy1
What change should you make to fulfill the company's requirements?
The existing policy permits DHCP and DNS through class1, then drops traffic matching class2, which is traffic destined for 10.0.0.0/8. However, the requirement also says all other traffic must be permitted. To make that policy complete, a final catch-all permit class must be added after the deny rule. A class that matches ''any any any'' and is referenced at the end of policy1 permits all traffic that did not match the earlier DHCP/DNS or 10.0.0.0/8 rules. Changing class2 to ignore would remove the intended deny behavior. Reversing source and destination would not meet the stated destination-based requirement. Adding action permit to class1 only affects DHCP and DNS, not all other traffic.
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You need to create a certificate signing request (CSR) for HPE Aruba Networking ClearPass's RADIUS/EAP certificate.
What is one guideline you should follow?
For a ClearPass RADIUS/EAP server certificate, the certificate identity should clearly represent the ClearPass server or service name that supplicants validate during 802.1X authentication. A fully qualified domain name in the subject common name, without a wildcard, is the safest guideline because it provides a specific and predictable server identity. Wildcard identities are not preferred for EAP server identity validation because they weaken specificity and can create trust ambiguity. A private CA is acceptable in enterprise 802.1X if clients trust its root certificate. RSA versus EC is a compatibility and policy decision, not simply a way to obtain shorter keys. A SAN may include DNS names, but requiring an IP address is not the best general guideline.
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Assume that an AOS-CX switch is already implementing DHCP snooping and ARP inspection successfully on several VLANs.
What should you do to help minimize disruption time if the switch reboots?
To minimize disruption time if an AOS-CX switch reboots while implementing DHCP snooping and ARP inspection, you should save the IP-to-MAC bindings to external storage. This ensures that the DHCP snooping and ARP inspection tables, which are crucial for preventing spoofing attacks, are preserved across reboots. When the switch restarts, it can reload these bindings from the external storage, thereby maintaining network security and reducing the downtime associated with rebuilding these tables.
1.Preserving Bindings: Saving IP-to-MAC bindings to external storage ensures that these critical security tables are not lost during a reboot, maintaining network integrity.
2.Security Continuity: This practice helps to quickly restore security features like DHCP snooping and ARP inspection, minimizing the window of vulnerability.
3.Operational Efficiency: By preserving these bindings, the switch can resume normal operations faster, reducing disruption to network services.
You have created this rule in an HPE Aruba Networking ClearPass Policy Manager (CPPM) service's enforcement policy:
IF Authorization [Endpoints Repository] Conflict EQUALS true
THEN apply "quarantine_profile"
What information can help you determine whether you need to configure cluster-wide profiler parameters to ignore some conflicts?
A conflict in the Endpoints Repository usually indicates that ClearPass has seen different profiling data for the same MAC, which might mean a spoofing attempt---or simply normal behavior for certain device types.
Devices that use PXE boot often:
Boot initially from the network with one set of characteristics (e.g., a minimal OS, different DHCP fingerprint),
Then chain-load into a different OS with a different fingerprint and sometimes even a different network profile.
Aruba exam and design material specifically point out PXE boot as a common, benign cause of profiler conflicts and recommend tuning cluster-wide profiler parameters to ignore or relax some conflicts for these devices.
Therefore, you look at whether the company has devices that use PXE boot when deciding whether to tune profiler conflict behavior Option D.
A company wants to turn on Wireless IDS/IPS infrastructure and client detection at the high level on HPE Aruba Networking APs. The company does not want to
enable any prevention settings.
What should you explain about HPE Aruba Networking recommendations?
When enabling Wireless IDS/IPS infrastructure and client detection at a high level on HPE Aruba Networking APs without enabling prevention settings, HPE Aruba Networking recommends configuring detection at a custom level and adjusting settings to minimize false positives. This approach allows for effective monitoring while reducing the risk of unnecessary alerts and maintaining the accuracy of detections.
1.Custom Level Configuration: By customizing the detection settings, you can tailor the system to your specific environment, ensuring that only relevant threats are detected and reducing false positives.
2.False Positive Reduction: Disabling or tuning settings that are likely to produce false positives helps in maintaining the reliability of the detection system and prevents alert fatigue.
3.Focused Detection: Custom configuration ensures that the IDS/IPS focuses on critical detections, improving overall security posture.
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