Juniper JN0-636 Exam With Confidence Using Practice Dumps

According to the Juniper documentation, reflexive NAT is a type of source NAT that allows an internal host to communicate with an external host using a single public IP address and port. The reflexive NAT session is created when the internal host initiates the traffic to the external host, and the session is deleted when the traffic stops. The reflexive NAT session is bidirectional, meaning that the external host can send traffic back to the internal host using the same public IP address and port that the internal host used to reach the external host. However, the external host cannot initiate a new session to the internal host using the same public IP address and port, unless the internal host has already established a session with the external host. Therefore, only the Internet host that the internal host originally communicated with can initiate traffic to reach the internal host using the 203.0.113.1 address, a random source port, and destination port 54311. References: [Configuring Reflexive NAT]

The suspicious_Endpoints feed is a dynamic address group that is created by Juniper ATP Cloud based on the IoT device discovery and policy enforcement feature. This feature allows the SRX Series device to send IoT traffic to Juniper ATP Cloud for analysis and classification. Juniper ATP Cloud then creates a threat feed that contains the IP addresses of the suspicious IoT devices and sends it back to the SRX Series device. The SRX Series device can then use this feed to create and enforce security policies for the IoT traffic. The suspicious_Endpoints feed is usable by any SRX Series device that is a part of the same realm as SRX-1, because the feed is shared among the devices that belong to the same Juniper ATP Cloud realm. Juniper ATP Cloud automatically creates the suspicious_Endpoints feed after you commit the security policy that references the feed, because the feed is dynamically generated based on the IoT traffic analysis. You do not need to manually create the feed in the Juniper ATP Cloud interface. References:

• Example- Configure IoT Device Discovery and Policy Enforcement
• Juniper Advanced Threat Prevention Cloud Policy Overview

According to the output of the command show configuration services security-intelligence url, the SRX Series device is directly enrolled with Juniper ATP Cloud. This is indicated by the URL  , which is the default URL for Juniper ATP Cloud1. This means that the device is not enrolled with Policy Enforcer, which would use a different URL that includes the IP address of the Policy Enforcer server2. Therefore, the problem in this scenario is that the device is directly enrolled with Juniper ATP Cloud, which prevents it from being enrolled with Policy Enforcer.

To enroll the device with Policy Enforcer, the user needs to disenroll the device from Juniper ATP Cloud first. This can be done by using the following command:

delete services security-intelligence url

This command will remove the Juniper ATP Cloud URL from the device configuration and stop the device from receiving threat feeds from Juniper ATP Cloud1. After that, the user can enroll the device with Policy Enforcer by using the Security Director GUI or the SLAX script2.

References: 1: Configuring Juniper ATP Cloud on SRX Series Devices 2: Enrolling SRX Series Devices with Policy Enforcer