HP HPE7-A02 Exam With Confidence Using Practice Dumps

Comprehensive Detailed Explanation

Traffic Match Evaluation Order:

The rules are processed in sequential order, and the first rule that matches is applied.

The added rule only denies SSH traffic to 10.1.4.0/23. Since 10.1.11.42 is not within the 10.1.4.0/23 subnet, this rule does not apply.

Next Matching Rule:

Rule 2 permits traffic to the 10.1.6.0/23 network, but this does not include 10.1.11.42.

Rule 3 denies traffic to the broader 10.1.0.0/16 network and logs it. Since 10.1.11.42 falls under this range, this rule applies, and the traffic would be logged and dropped.

Logging and Denylist Actions:

The denylist action in the new rule only applies to SSH traffic to 10.1.4.0/23. Since the destination is outside that range, the denylist is not triggered.

References

Aruba AOS-10 Role and Firewall Rules Documentation.

HPE Aruba Central Configuration Best Practices Guide.

Policy Analysis:

Rule Evaluation Order: Rules are applied in sequential order until a match is found.

Key Points:

DHCP traffic (UDP 67) is permitted.

DNS traffic (UDP 53) is permitted.

Traffic to 10.5.5.0/24 is explicitly denied.

HTTP traffic (TCP 80) is allowed only to 10.5.0.0/16.

HTTPS traffic (TCP 443) is allowed only to 10.5.0.0/16.

All other traffic to 10.5.0.0/16 is denied.

Any other traffic not matching the above rules is permitted.

Scenario Analysis:

The client IP 10.2.2.2 does not fall within the 10.5.0.0/16 subnet.

Rule 3 denies traffic to 10.5.5.5, regardless of the source IP.

Option A: Correct. HTTPS traffic to 10.5.5.5 is explicitly denied by Rule 3.

Option B: Incorrect. Traffic to 203.0.113.12 is permitted due to the final "permit any" rule.

Option C: Incorrect. The client (10.2.2.2) does not belong to the subnet 10.5.0.0/16, so traffic to 10.5.3.3 is not permitted by Rule 5.

Option D: Incorrect. HTTP traffic to 198.51.100.12 is allowed by the last "permit any" rule.

Internet Key Exchange (IKE)/IKEv2 plays a crucial role in an HPE Aruba Networking client-to-site VPN by helping to negotiate the IPsec Security Association (SA) automatically and securely. IKE/IKEv2 handles the authentication and key exchange processes, ensuring that both the client and the VPN gateway can establish a secure IPsec tunnel.

1.SA Negotiation: IKE/IKEv2 automates the negotiation of the Security Association, which defines the parameters for the secure IPsec tunnel.

2.Secure Authentication: It provides a secure method for authenticating the communicating parties and exchanging cryptographic keys.

3.Efficiency: Using IKE/IKEv2 simplifies the setup and maintenance of secure VPN connections, enhancing the overall security and reliability of the VPN.