startup config

orange_badger

was just wondering if someone would kindly explain to me what config is loaded the first time a router is booted up, or even a swtich for that matter. Im using a packet tracer and whenever i use the command

show startup-config

on a new router or switch i get this response

startup-config is not present

thanks

oli356

This is because a config hasn't been saved.
Show run - this will show the config which is currently running.
copy run start - this will copy the running config to the startup config. It will ask what you want to save the start config file as, press enter so it saves as the default. Now when you do show start it should work.

Router#show start
startup-config is not present
Router#copy run start
Destination filename [startup-config]? 
Building configuration...
[OK]
Router#show start