How to Obtain Tracelogs from the CLI
03/26/2020 
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DESCRIPTION:
Technical support engineers at SonicWall require console logs to be provided for analysis when the device isn't responding via GUI or through any LAN/WAN interfaces . When the firewall locks up or becomes unresponsive there are some files, if gathered from firewall console at the time it locks up, that can help a support engineer find the probable root cause of the reported issue.
This article explains what commands should be used when a firewall locks up or becomes inaccessible via the GUI.
RESOLUTION:
This article will use Putty client to gather key information over SSH connection.
- Log in to SonicWall Firewall via Putty or another terminal emulator program.
- To save the console output to a file browse to Session | logging.
- Select option All session output under Session logging and locate a path for file to be saved as .txt.
- Select the radio button Always append to the end of it and ensure Flush log file frequently box is unchecked.
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- Click on the session from the left hand side and type the IP address of the SonicWall under Host name and ensure SSH is selected under "Connection Type"
- Serial connection type should be selected if Firewall is connected via a console cable connection.
- Click on the Open to connect to the appliance via SSH and wait for username prompt, enter username/password and wait for the command line prompt to appear.
For 5.6.0.x firmware and up to 5.8.1.x
show tracelog current
show tracelog last
show tracelog all
show tech-support
Note: On a serial 115k connection, show tech-support command can slow down the firewall so if firewall is taking time to print a command output then avoid running this command, and contact the SonicWall Support Team for further assistance.
show cpu (search for the process and see which process has highest cpu usage )
stacktrace "process name" without " "
for example use
stacktrace zNSM
(Please run the above command for 10 to 15 times)
show mem-pools
show memory
show memzone
show fpa
show log.
For 5.9.0.x firmware versions
show tech-support
diag show tracelog current
diag show tracelog last
diag show tracelog all
diag show cpu
diag show process "process name" without " "
(Please run the above command for 10 to 15 times)
?diag show mem-pools
diag show cp-stats
diag show memory
diag show memzone
diag show fpa
show log view
For 6.1.1.X firmware versions 6.1.2.0 and 6.2.x.x
show tech-support
diag show tracelog current
diag show tracelog last
diag show tracelog all
diag show cpu
diag show process "process name" without " "
(Please run the above command for 10 to 15 times)
diag show mem-pools
diag show cp-stats
diag show memory
diag show memzone
?diag show fpa
diag show log
Attach the file which was saved for saving the console output to the support case for analysis.
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