Backup Configuration Using Kron Schedule

You want to make sure your router automatically saves its configuration on scheduled time? For that purpose you can use kron command on router or switch.

But (yes, there is a but :)) , first you have to configure accurate time on router, to do that use clock set or use ntp server command.

In this lab I'm using TFTP server (tftpd32) for backing up my config, you can use FTP or SCP and kron command to automatically backup configuration.

Here you can download TFTP, SFTP and SCP servers without any fees. 

http://www.solarwinds.com/

After setting the clock, disable pop-up questions when using copy command, those questions are appears beside you supply the complete source and destination file name in the command line, the IOS  will still ask you a question about ip address of TFTP server and file name destination.

To solve the problem use file prompt quit command (the default value is noisy), after that you can start configuring kron scheduler.

Step 1.

HLabR1(config)#kron policy-list SAVECONFIG

HLabR1(config-kron-policy)#cli copy running-config tftp://10.2.0.2/config

HLabR1(config-kron-policy)#exit

HLabR1(config)#kron occurrence SAVE at 21:51 Sun recurring

HLabR1(config)#policy-list SAVECONFIG

Step 2.

Use debug kron all to see what  going to happen at scheduled time.

Jul  7 21:51:16.656: Kron CLI return 0'

**CLI 'copy running-config tftp://10.2.0.2/config':

!!1253 bytes copied in 3.268 secs (383 bytes/sec)'

Jul  7 21:51:16.664: Major 4, Minor 7

Jul  7 21:51:16.664: Respond to end of CLI Process

Use show kron schedule command to see when will run again.