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Beginner

Extract Config from Catalyst 3750 Stack - Password/Username unknown

Hi All,

 

Can anyone provide any guidance as to finding out the saved (or running) config on a Catalyst 3750 stack (fibre + copper mixture)?

 

I've got physical access to the switches, but unfortunately I don't have the username or passwords need to access enable mode/global config mode to make changes.

 

Thanks!

4 REPLIES 4
Advocate

Re: Extract Config from Catalyst 3750 Stack - Password/Username unknown

VIP Mentor

Re: Extract Config from Catalyst 3750 Stack - Password/Username unknown

Just to add for the recovery make sure you dont skip any steps in the re-naming section of the config file in password recovery or you may wipe/overwrite the config
VIP Engager

Re: Extract Config from Catalyst 3750 Stack - Password/Username unknown

Hi,

1. Power off the switch and press hold the MODE button (Don't release it)

2. Plug the power cable and wait till you will not see the "Switch:" prompt. After that release the MODE button.

3. run the command "flash_init"

4. Run a command "rename flash:config.text flash:config.old

5. Run a command "boot"

 

The switch will boot and wait for boot proper.

 

6. Run a command "rename flash:config.old flash:config.text"

7. copy flash: config.text running-config

 

Your configuration is here and doesn't forget to change the password.

 

Regards,

Deepak Kumar

Regards,
Deepak Kumar,
Resume duty after a long holiday
VIP Advisor

Re: Extract Config from Catalyst 3750 Stack - Password/Username unknown

Hello
Just like to add on some switch(s) you may have to also initiate the load_helper

1)
power cycle switch <- depress mode button until port 1 led shows solid for about 2-3 secs
flash_int
load_helper

2)
dir flash:
rename flash:config.text flash:config.old
boot

3)
rename flash:config.old flash:config.text
copy startup-config run
    .......change password(s)
wr
reload

 



kind regards
Paul

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