CATALYST 3550 PASSWORD RECOVERY...ALONG WITH SOME OTHERS
Here's a brief synopsis though (taken verbatim from Cisco's site...)
Follow the password recovery procedure below.
- Attach a terminal or PC with terminal emulation (for example, Hyper Terminal) to the console port of the switch.
Use the following terminal settings:
- Bits per second (baud): 9600
- Data bits: 8
- Parity: None
- Stop bits: 1
- Flow Control: Xon/Xoff
- Bits per second (baud): 9600
- Unplug the power cable.
- Power the switch and bring it to the switch: prompt:
For 2900XL, 3500XL, 2940, 2950, 2960, 2970, 3550, 3560, and 3750 series switches, do this:
Hold down the mode button located on the left side of the front panel, while you reconnect the power cable to the switch.
Catalyst Switch Series
LED Behavior and Mode Button Release Action
2900XL, 3500XL, 3550
Release the Mode button when the LED above Port1x goes out.
switch: flash_init
Initializing Flash...
flashfs[0]: 143 files, 4 directories
flashfs[0]: 0 orphaned files, 0 orphaned directories
flashfs[0]: Total bytes: 3612672
flashfs[0]: Bytes used: 2729472
flashfs[0]: Bytes available: 883200
flashfs[0]: flashfs fsck took 86 seconds
....done Initializing Flash.
Boot Sector Filesystem (bs:) installed, fsid: 3
Parameter Block Filesystem (pb:) installed, fsid: 4
switch:
!--- This output is from a 2900XL switch. Output from
!--- other switches will vary slightly.
switch: load_helper switch:
Note: Make sure to type a colon ":" after the dir flash.
The switch file system is displayed:
switch: dir flash: Directory of flash:/ 2 -rwx 1803357c3500xl-c3h2s-mz.120-5.WC7.bin !--- This is the current version of software. 4 -rwx 1131 config.text !--- This is the configuration file. 5 -rwx 109 info 6 -rwx 389 env_vars 7 drwx 640 html 18 -rwx 109 info.ver 403968 bytes available (3208704 bytes used) switch: !--- This output is from a 3500XL switch. Output from !--- other switches will vary slightly.
switch: rename flash:config.text flash:config.old
switch:
!--- The config.text file contains the password
!--- definition.
switch: boot
Loading "flash:c3500xl-c3h2s-mz.120-5.WC7.bin"...###############################
################################################################################
######################################################################
File "flash:c3500xl-c3h2s-mz.120-5.WC7.bin" uncompressed and installed, entry po
int: 0x3000
executing...
!--- Output suppressed.
!--- This output is from a 3500XL switch. Output from other switches
!--- will vary slightly.
Thats the jist of it though. If you want to keep a fresh config just issue a wr, if you want to keep your current config and change the password just follow the rest of the steps in that doc!--- System Configuration Dialog --- At any point you may enter a question mark '?' for help. Use ctrl-c to abort configuration dialog at any prompt. Default settings are in square brackets '[]'. Continue with configuration dialog? [yes/no]: n !--- Type "n" for no. Press RETURN to get started. !--- Press Return or Enter. Switch> !--- The Switch> prompt is displayed.
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