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administrative shutdown problem

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lloydie2

Programmer
Apr 21, 2003
75
GB
I have configured my first couple of cisco routers but I am having a problem when the routers boot up.

Both the Ethernet0 and serial0 are in a down state and I have to force the up using 'no shutdown'.
Why is this?
Also when I first connect on the console port, I always get the option to do an initial config, with no request for the passwords I have entered.

Can you help?
 
This is what happens by default. If a Cisco router boots without any configuration (either it is new or the config has been erased) then it attempts to 'auto-install'. This is a process where it checks if any interface is up and if so attempts to aquire an IP address and then try and TFTP copy configuration files. The actual process is quite clever and can be used to roll-out routers. In addition to this the console attempts to run a script to configure the basics as well.
If you are seeing this on routers you have already configured then it is likely you have either not saved the config or the config-register is set to ignore the config in NVRAM.

HTH

Andy
 
How do I change this to use the config in nvram (startup-config)?
 
To save the configuration type either:

copy start run
or
write mem

To check the config register type:

show ver

It is shown at the end of the screen and should be 0x2102, if it isn't this can be changed in global config with the command:

config-register 0x2102

HTH

Andy
 
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