Question 4 - JN0-636 discussion

According to the exhibit, which is a security flow trace on an SRX Series device, the following statements are true:

The packet's destination is to an interface on the SRX Series device. This is indicated by the line packet dropped for self but not interested, which means that the packet is destined to the SRX device itself, but the device does not have the corresponding service configured in the host-inboundtraffic stanza for the interface1.

The packet originated within the Trust zone. This is indicated by the line zone name: Trust, which shows that the packet belongs to the Trust zone. The Trust zone is typically the zone where the internal network is connected to the SRX device2.

The packet is dropped before making an SSH connection. This is indicated by the line flow_first_inline_processing: pak(0x4a9c0d0), which shows that the packet is the first packet in the session and is processed by the firewall. The packet is dropped because it does not match any security policy or host-inbound-traffic rule1. The packet is trying to make an SSH connection, which uses TCP port 22, as shown by the line source port: 22.

The following statements are false:

The packet's destination is to a server in the DMZ zone. There is no indication of the DMZ zone in the trace output. The DMZ zone is typically the zone where the external servers are connected to the SRX device2.

The packet is allowed to make an SSH connection. The packet is not allowed to make an SSH connection, as explained above.

Reference: 1: SRX Getting Started - Troubleshoot Security Policy 2: SRX Getting Started - Configure Security Zones