Fri. Nov 25th, 2022
5 Helpful Logging Options in Cisco IOS You Didn't Know Were There

If you’re running Cisco IOS, you have plenty of logging options available to help you troubleshoot issues and monitor the performance of your network. Most people don’t realize that there are some additional logs you can track using these commands, but if you master them, you can optimize the performance of your network and fix issues more efficiently and effectively.

show tech

If you’re troubleshooting a network issue, the show tech command can be a lifesaver. This command provides a wealth of information that can help you pinpoint the problem. Here are five helpful logging options that you may not have known were available -enable boot status messages: These messages provide valuable information about your device’s startup process and allows you to easily determine if there is an error during the process.

-show version and show running-config: If your device isn’t behaving as expected, these commands will allow you to compare what it should be doing with what it actually is doing and find any discrepancies.

Terminal monitor

If you’re troubleshooting a network issue, the first thing you’ll want to do is check the logs. The terminal monitor command will show all system messages and debug output on your console. This is helpful if you’re trying to find a specific error message or track down a problem. However, it can also be very noisy, so use this command sparingly. It’s useful for emergencies but not when you need to filter through logs at length. logout: To get out of terminal monitor mode, just type logout and press enter. history: Use the history command when you want to see what commands you’ve run recently. It only works with commands that were inputted at the prompt – so show running-config won’t work but show ip interface brief will!

log monitor

If you’re troubleshooting a network issue, the log monitor feature in Cisco IOS can be a big help. This feature allows you to view system messages in real-time, which can be helpful in identifying the root cause of a problem. Plus, you can use the log monitor to generate reports on system activity, which can be useful for tracking down potential security issues. Here are five helpful logging options in Cisco IOS you may not have known were there – debug: Outputs system debugging information from many commands at once

– enable secret: Gives greater control over access to the device by setting a password

– exec-timeout 0: Prevents an EXEC session from being left idle and losing its connection when it reaches a timeout period (this is set in seconds)

– ip address: Assigns IP addresses to interfaces

– netstat -a: Displays active TCP connections

exec history

The exec history feature keeps a running log of all the commands you enter in the CLI. This is a great way to keep track of what you’ve done, especially if you’re working on a complex project or troubleshooting an issue. To view the exec history, simply type ‘show history’ at the CLI prompt. Use the arrow keys to scroll through and press return to execute. Once executed, it will disappear from the screen until you enter another command. Your turn! Continue the blog post about logging options.

logging synchronous 

This is a great option for when you want to see real-time logging output as it happens. Synchronous logging will cause a slight performance hit, but it’s worth it if you need to debug something quickly. Plus, it’s really easy to set up – just add the logging synchronous command to your config. Beware that this only works on console ports and virtual terminal lines. If you’re using Telnet or SSH connections, use one of the other options below. For serial connections, use the exec-timeout command instead of synchronous logging. Another way to capture real-time output is by adding this code service timestamps log date time msec. Don’t forget to reload the router once you make any changes.

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