You have deployed automated threat mitigation using Security Director with Policy Enforcer, Juniper ATP Cloud, SRX Series devices, Forescout, and third-party switches. In this scenario, which device is responsible for communicating directly to the third-party switches when infected hosts need to be blocked?
Answer(s): B
Policy Enforcer receives these policies and translates them into device-specific commands. It then communicates with the third-party switches (using protocols like SNMP, RADIUS, or vendor-specific APIs) to enforce those commands, such as blocking the infected hosts' MAC addresses or port access.Why Policy Enforcer is the Right Choice:Centralized Enforcement: Policy Enforcer acts as the central point of enforcement for Security Director policies, ensuring consistent security across the network. Multi-Vendor Support: It can interact with a wide range of network devices, including switches from different vendors.Automation: Policy Enforcer automates the policy enforcement process, enabling rapid response to threats.
Forescout and Juniper integration for network access control.
Referring to the exhibit,which two statements are correct about the NAT configuration? (Choose two.)
Answer(s): B,D
Persistent NAT with target-host restricts session initiation to specific addresses, enhancing security. Reflexive NAT supports multiple connections by preserving the original port. Refer to Juniper NAT Configuration Documentation.Referring to the NAT configuration shown in the exhibit:Specific Host Can Initiate a Session (Answer B): The configuration uses persistent NAT with the permit target-host-port statement. This allows a specific external host (based on the target host and port used in the initial session) to initiate a session back to the internal host after the initial session has been established.Persistent NAT ensures that the translation state is maintained, allowing external hosts to connect back only under specific conditions (e.g., the same target host and port as used in the original connection).Original Destination Port (Answer D): The original destination port used by the internal host is retained as the source port when the session is established from outside to inside. This behavior is a result of how persistent NAT binds the internal and external sessions, ensuring that communication occurs over the same port used for the initial session.
Juniper NAT and Persistent NAT configuration documentation.
You are using ADVPN to deploy a hub-and-spoke VPN to connect your enterprise sites.Which two statements are true in this scenario? (Choose two.)
Answer(s): C,D
You want to create a connection for communication between tenant systems without using physical revenue ports on the SRX Series device.What are two ways to accomplish this task? (Choose two.)
An ADVPN configuration has been verified on both the hub and spoke devices and it seems fine.However, OSPF is not functioning as expected.Referring to the exhibit, which two statements under interface st0.0 on both the hub and spoke devices would solve this problem? (Choose two.)
Answer(s): A,B
For ADVPN with OSPF, using a point-to-multipoint (p2mp) interface type and enabling dynamic-neighbors are crucial. This configuration allows dynamic discovery of neighbors and the establishment of tunnels. For more information, refer to Juniper ADVPN Configuration Guide.In the ADVPN configuration, OSPF isn't functioning as expected due to the interface configuration on st0.0. Here are the adjustments needed:Interface Type p2mp (Answer A): OSPF requires that the tunnel interface be set to p2mp (point-to- multipoint) to allow OSPF to communicate with multiple dynamic neighbors over the ADVPN tunnels.Command Example:bash set interfaces st0.0 family inet ospf interface-type p2mp Dynamic Neighbors (Answer B): The dynamic neighbors statement allows OSPF to discover and communicate with dynamically established spokes in an ADVPN environment. This is essential for ADVPN to function properly since the tunnel endpoints are not static.Command Example:bash set protocols ospf area 0.0.0.0 interface st0.0 dynamic-neighbors These settings ensure OSPF properly functions over dynamically created ADVPN tunnels.
Juniper ADVPN and OSPF configuration.
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