156-587 Exam Dumps - Check Point Certified Troubleshooting Expert - R81.20 (CCTE)

The Check Point process responsible for Mobile VPN connections, particularly those associated with the Mobile Access Software Blade (which includes SSL VPN and clientless access), is cvpnd (Connectra VPN Daemon).

Exact Extracts and Supporting Information:

Check Point CLI Reference Guide (for cvpnd_admin):

"cvpnd_admin. Description. Changes the behavior of the Mobile Access cvpnd process."

This command utility directly interacts with cvpnd for Mobile Access functionalities.  

Check Point Daemon Lists (e.g., from "tech :: stuff - Checkpoint Daemons and Processes Explained" or similar CCTE R81.20 documentation):

Under the "Mobile Access Blade" section, CVPND is typically listed as:"CVPND - Connectra VPN Daemon. Main daemon for the Mobile Access Software Blade."  

It's also often noted that the cpwd_admin list command (Check Point WatchDog) shows this process as "CVPND".  

Commands like cvpnstart and cvpnstop are used to manage this daemon.  

Exam Preparation Materials (e.g., ExamTopics for 156-586):

A question directly asking "Which process is responsible for Mobile VPN connections?" with options including cvpnd, vpnk, fwk, and vpnd, typically indicates cvpnd as the correct answer.

Explanation of other options:

B. fwk: This is a general suffix often related to firewall worker processes or kernel modules, not a specific high-level daemon for Mobile VPN.

C. vpnd: This is the main VPN daemon, primarily responsible for site-to-site IPsec VPNs and some traditional IPsec remote access clients. While it handles VPN functions, cvpnd is specialized for Mobile Access.  

D. vpnk: This refers to VPN kernel-level operations and modules (e.g., handling the actual encryption/decryption of traffic processed by IPsec SAs). It is not the user-space daemon that manages Mobile VPN sessions and policies.

Therefore, cvpnd is the specific process dedicated to managing Mobile VPN connections within the Check Point architecture.

Reference (based on official Check Point documentation naming and functionality):

Check Point R81.20 CLI Reference Guide (details for cvpnd_admin).

Check Point R81.20 Administration Guides (sections discussing Mobile Access architecture and daemons).

Commonly known Check Point process lists available in CCTE study materials.

The correct directory where an administrator can find vpn debug log files generated during Site-to-Site VPN troubleshooting is $FWDIR/log/. This directory contains the following files related to vpn debug:

vpnd.elg: This file contains the high-level VPN debug information, such as the VPN tunnel establishment, deletion, and negotiation messages. It can be enabled by using thevpn debug oncommand on the Security Gateway CLI.

legacy_ike.elg: This file contains the low-level IKE debug information for IKEv1, such as the IKE packets, encryption, decryption, and authentication. It can be enabled by using thevpn debug ikeoncommand on the Security Gateway CLI.

legacy_ikev2.xml: This file contains the low-level IKE debug information for IKEv2, such as the IKE packets, encryption, decryption, and authentication. It can be enabled by using thevpn debug ikev2oncommand on the Security Gateway CLI.

These files can be viewed by using thevpn debug viewcommand on the Security Gateway CLI, or by using theIKEViewtool on the Security Management Server GUI.

In Check Point’s Security Management Architecture, SmartConsole is the graphical user interface used to manage the Security Management Server. The communication between SmartConsole and the Security Management Server relies on specific processes and ports, which are critical for troubleshooting connectivity issues.

TheCPM (Check Point Management)process is the primary process on the Security Management Server responsible for handling management operations, including interactionswith SmartConsole. The default port for this communication is18190(TCP), used for the SIC (Secure Internal Communication) and management GUI connections.

Option A: Correct. SmartConsole communicates with the Security Management Server using the CPM process over port 18190. This port is used for GUI client connections to the management server.

Option B: Incorrect. The FWM (Firewall Management) process is an older process used in earlier Check Point versions (pre-R80) for management tasks. In R81.20, CPM has largely replaced FWM for SmartConsole communications. Additionally, port 19009 is used for other purposes, such as the Check Point REST API, not SmartConsole.

Option C: Incorrect. While CPM is the correct process, port 19009 is not used for SmartConsole communication. Port 19009 is associated with the Check Point Management API (e.g., for mgmt_cli or REST API calls).

Option D: Incorrect. While CPM is involved, SmartConsole does not use both ports 19009 and 18191. Port 18191 is typically used for log server communications (e.g., SmartConsole to Log Server), not direct management server communication.

The STAT column in the output of the cpwd_admin list command shows the status of the monitored process. The possible values are E for established, meaning that the process is running, or T for terminated, meaning that the process is not running. The STAT column is useful for quickly checking if any critical process has crashed or failed to start. If the value is T, the process should be restarted and the reason for the termination should be investigated. The STAT column does not show the Watch Dog name, the number of times the process was started, or the monitoring method of the Watch Dog. 

The simplest and most efficient way to check all dropped packets in real time is C. fw ctl zdebug + drop in expert mode. This command is a shortcut command that sets the kernel debug flags to a predefined value and prints the debug output to the standard output. It is useful for general debugging of common issues, such as traffic drops, NAT, VPN, or clustering. It has a small buffer size and does not require additional steps to start or stop the debugging. However, it has some limitations, such as it cannot be used with SecureXL, it cannot filter the output by chain modules, and it cannot save the output to a file12.

The other commands are not as simple or efficient as the fw ctl zdebug + drop command. The command tail -f $FWDIR/log/fw.log |grep drop in expert mode will only show the drops that are logged in the fw.log file, which may not include all the drops that occur in the kernel. The command cat /dev/fw1/log in expert mode will show the raw binary data of the kernel debug buffer, which is not human-readable and may contain irrelevant information. The command Smartlog will show the drops that are indexed and stored in the SmartEvent database, which may not be in real time and may depend on the log server performance12.

1: https://sc1.checkpoint.com/documents/R81.10/WebAdminGuides/EN/CP_R81.10_AdvancedTechnicalReferenceGuide/html_frameset.htm  2: https://www.checkpoint.com/downloads/training/DOC-Training-Data-Sheet-CCTE-R81.10-V1.0.pdf

The Check Point R81.20 Gaia Administration Guide describes fw ctl zdebug as a key troubleshooting tool for real-time packet analysis, particularly for drops. The CCTE R81.20 course emphasizes using fw ctl zdebug for kernel-level debugging, including monitoring dropped packets.

For precise details, refer to:

Check Point R81.20 Gaia Administration Guide, section on “fw ctl zdebug” (available via Check Point Support Center).

CCTE R81.20 Courseware, which covers advanced troubleshooting techniques for packet drops (available through authorized training partners).

The input that is suitable for debugging HTTPS inspection issues is fw debug tls on TDERROR_ALL_ALL=5. This input will enable the TLS debug mode and set the debug level to 5, which is the highest level of verbosity. The fw debug command is used to control the debug features of the firewall modules, such as TLS, CPTLS, HTTP, etc. The tls option will enable the debug mode for the TLS module, which is responsible for handling the HTTPS inspection feature. The TDERROR_ALL_ALL environment variable will set the debug level to 5, which will generate the most detailed and comprehensive debug output. The debug output will be written to the $FWDIR/log/tls.elg file, whichcan be collected and analyzed with the TLSView tool1 to see the details of the HTTPS inspection process, such as certificate validation, SSL/TLS negotiation, encryption/decryption, etc. The other options are incorrect because:

fw ctl debug -m fw + conn drop cptls will enable the kernel debug mode for the firewall module, with the flags conn, drop, and cptls. The kernel debug mode will generate the kdebug.txt file in the $FWDIR/log directory, which contains information about the firewall traffic processing in the kernel. The kernel debug mode is useful for troubleshooting issues related to policy, NAT, routing, and inspection, but not for issues related to HTTPS inspection, which is handled by the TLS module in the user space2.

vpn debug cptls on will enable the IKE debug mode for the CPTLS module, which is a component of the VPN module. The IKE debug mode will generate the ike.elg and ikev2.xmll files in the $FWDIR/log directory, which contain information about the IKE negotiation, authentication, and key exchange between the VPN peers. The CPTLS module is responsible for handling the SSL/TLS encryption/decryption for the VPN traffic, but not for the HTTPS inspection traffic3.

fw diag debug tls enable is not a valid command and will not enable the TLS debug mode. The fw diag command is used to control the diagnostic features of the firewall, such as packet capture, core dump, etc. The debug option is not a valid option for the fw diag command, and the tls option is not a valid option for the debug option. References:

How to use the TLSView tool

How to debug the Firewall kernel (fw) module

How to debug VPN issues on Quantum Spark (SMB) Appliances

[fw diag - Check Point CLI Reference Card]