Question 36

A customer wants CPPM to authenticate non-802.1X-capable devices. An admin has created the service shown in the exhibits below:

What is one recommendation to improve security?
  • Question 37

    How does Aruba Central handle security for site-to-site connections between AOS 10 gateways?
  • Question 38

    Refer to the scenario.
    # Introduction to the customer
    You are helping a company add Aruba ClearPass to their network, which uses Aruba network infrastructure devices.
    The company currently has a Windows domain and Windows CA. The Window CA issues certificates to domain computers, domain users, and servers such as domain controllers. An example of a certificate issued by the Windows CA is shown here.


    The company is in the process of adding Microsoft Endpoint Manager (Intune) to manage its mobile clients.
    The customer is maintaining the on-prem AD for now and uses Azure AD Connect to sync with Azure AD.
    # Requirements for issuing certificates to mobile clients
    The company wants to use ClearPass Onboard to deploy certificates automatically to mobile clients enrolled in Intune. During this process, Onboard should communicate with Azure AD to validate the clients. High availability should also be provided for this scenario; in other words, clients should be able to get certificates from Subscriber 2 if Subscriber 1 is down.
    The Intune admins intend to create certificate profiles that include a UPN SAN with the UPN of the user who enrolled the device.
    # Requirements for authenticating clients
    The customer requires all types of clients to connect and authenticate on the same corporate SSID.
    The company wants CPPM to use these authentication methods:
    * EAP-TLS to authenticate users on mobile clients registered in Intune
    * TEAR, with EAP-TLS as the inner method to authenticate Windows domain computers and the users on them To succeed, EAP-TLS (standalone or as a TEAP method) clients must meet these requirements:
    Their certificate is valid and is not revoked, as validated by OCSP
    The client's username matches an account in AD
    # Requirements for assigning clients to roles
    After authentication, the customer wants the CPPM to assign clients to ClearPass roles based on the following rules:
    * Clients with certificates issued by Onboard are assigned the "mobile-onboarded" role
    * Clients that have passed TEAP Method 1 are assigned the "domain-computer" role Clients in the AD group "Medical" are assigned the "medical-staff" role Clients in the AD group "Reception" are assigned to the "reception-staff" role The customer requires CPPM to assign authenticated clients to AOS firewall roles as follows:
    * Assign medical staff on mobile-onboarded clients to the "medical-mobile" firewall role
    * Assign other mobile-onboarded clients to the "mobile-other" firewall role
    * Assign medical staff on domain computers to the "medical-domain" firewall role
    * All reception staff on domain computers to the "reception-domain" firewall role
    * All domain computers with no valid user logged in to the "computer-only" firewall role
    * Deny other clients access
    # Other requirements
    Communications between ClearPass servers and on-prem AD domain controllers must be encrypted.
    # Network topology
    For the network infrastructure, this customer has Aruba APs and Aruba gateways, which are managed by Central. APs use tunneled WLANs, which tunnel traffic to the gateway cluster. The customer also has AOS-CX switches that are not managed by Central at this point.

    # ClearPass cluster IP addressing and hostnames
    A customer's ClearPass cluster has these IP addresses:
    * Publisher = 10.47.47.5
    * Subscriber 1 = 10.47.47.6
    * Subscriber 2 = 10.47.47.7
    * Virtual IP with Subscriber 1 and Subscriber 2 = 10.47.47.8
    The customer's DNS server has these entries
    * cp.acnsxtest.com = 10.47.47.5
    * cps1.acnsxtest.com = 10.47.47.6
    * cps2.acnsxtest.com = 10.47.47.7
    * radius.acnsxtest.com = 10.47.47.8
    * onboard.acnsxtest.com = 10.47.47.8
    You cannot see flow attributes for wireless clients.
    What should you check?
  • Question 39

    Refer to the scenario.
    This customer is enforcing 802.1X on AOS-CX switches to Aruba ClearPass Policy Manager (CPPM). The customer wants switches to download role settings from CPPM. The "reception-domain" role must have these settings:
    - Assigns clients to VLAN 14 on switch 1, VLAN 24 on switch 2, and so on.
    - Filters client traffic as follows:
    - Clients are permitted full access to 10.1.5.0/24 and the Internet
    - Clients are denied access to 10.1.0.0/16
    The switch topology is shown here:

    How should you configure the VLAN setting for the reception role?
  • Question 40

    Refer to the scenario.
    A customer has an Aruba ClearPass cluster. The customer has AOS-CX switches that implement 802.1X authentication to ClearPass Policy Manager (CPPM).
    Switches are using local port-access policies.
    The customer wants to start tunneling wired clients that pass user authentication only to an Aruba gateway cluster. The gateway cluster should assign these clients to the "eth-internet" role. The gateway should also handle assigning clients to their VLAN, which is VLAN 20.
    The plan for the enforcement policy and profiles is shown below:

    The gateway cluster has two gateways with these IP addresses:
    * Gateway 1
    o VLAN 4085 (system IP) = 10.20.4.21
    o VLAN 20 (users) = 10.20.20.1
    o VLAN 4094 (WAN) = 198.51.100.14
    * Gateway 2
    o VLAN 4085 (system IP) = 10.20.4.22
    o VLAN 20 (users) = 10.20.20.2
    o VLAN 4094 (WAN) = 198.51.100.12
    * VRRP on VLAN 20 = 10.20.20.254
    The customer requires high availability for the tunnels between the switches and the gateway cluster. If one gateway falls, the other gateway should take over its tunnels. Also, the switch should be able to discover the gateway cluster regardless of whether one of the gateways is in the cluster.
    What is one change that you should make to the solution?