Cisco Catalyst - Popular Questions, Answers, Tips & Manuals


Hi,

Depending on the Supervisor Module model, most likely it's a standard Cisco's "password recovery procedure":

Connect to the console
Reboot the switch (power cycle)
Start pressing Ctrl-C till you get to the BOOTROM
Change boot configuration register to 0x2142 (confreg 0x2142)
Boot the switch. It will ignore confuguration and boot "empty".
Go to "enable mode".
Copy startup configuration to running configuration ("copy start run")
Change boot register back to 0x2102 (conf t -> conf 0x2102)
Write config (write mem)
Reboot

Good luck,

Mike / CCNP, CCDP, CCSP, CCVP

Headset Adapters for office phone system

Cisco Catalyst... | 371 views | 0 helpful votes


http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750x_3560x/software/release/15-0_1_se/release/notes/OL25302.html

Cisco Catalyst... | 549 views | 0 helpful votes


No. WS C2960S 48FPS uses the Universal image, but no license is required. The feature is bound to the hardware model type and cannot be changed. For convenience, a single software image is used for all Cisco Catalyst 2960-S Series Switches, regardless of whether they are a LAN Base or LAN Lite model.

Cisco Catalyst... | 163 views | 0 helpful votes


Hi

Instructions
telnet to the IP address of the Cisco switch
Enter the telnet access password for the Cisco swict when requested, and then the "Enter" key.
Type "enable" at the command prompt, and then the "Enter" key.
Enter the Privileged Exec password when requested at the command prompt, and then the "Enter" key. Then enter "configuration terminal" at the command prompt, and then the "Enter" key.
Type "interface fastethernet0/1," replacing the "fastethernet0/1" with the name of an interface in which you wish to enable PoE, and then the "Enter" key. Then, while in interface configuration mode, type "power inline auto" and then the "Enter" key. Repeat this step for each interface in which PoE is required.
Type "end" at the command prompt and then the "Enter" key, copy running-config
Below is some commands to run, I don't have any power on the interface but this will show you if this is working...
SW1#sh power inline fastEthernet 0/1
Available:360(w) Used:0(w) Remaining:360(w)
Interface Admin Oper Power Device Class Max
(Watts)
--------- ------ ---------- ------- ------------------- ----- ----
Fa0/1 auto off 0.0 n/a n/a 15.4
Run this command to see the interface is up.....
SW1# sh interface fastEthernet 0/1 ' in protocol
FastEthernet0/1 is up, line protocol is up (connected)
SW1#sh cdp interface fastEthernet 0/1
FastEthernet0/1 is up, line protocol is up
Encapsulation ARPA
Sending CDP packets every 60 seconds
Holdtime is 180 seconds


Thanks

Cisco Catalyst... | 129 views | 0 helpful votes


Fuel Temperature Sensor "B" Circuit High Input
- Faulty Fuel Temperature Sensor
- Fuel Temperature Sensor harness is open or shorted
- Fuel Temperature Sensor circuit poor electrical connection

Cisco Catalyst... | 53 views | 0 helpful votes


just type in global configuration mode

(config) no username username (name of existing user)

Cisco Catalyst... | 91 views | 0 helpful votes


Keep your 4-port and just purchase a netgear or linksys 8-port switch. This will increase your port count to 12, but you burn two ports on uplinking. If you need more ports, just get a 16-port switch then. I believe this will be the most cost effective solution.

Cisco Catalyst... | 84 views | 0 helpful votes


Try this http://tools.cisco.com/search/results/display?url=http%3a%2f%2fwww.cisco.com%2fc%2fdam%2fen%2fus%2fproducts%2fcollateral%2fswitches%2fnexus-4000-series-switches%2f6701_catswitch_guide_v7_r5.pdf&pos=5&query=WS-C3524-XL-EN

Cisco Catalyst®... | 121 views | 0 helpful votes


Too much heat.

Cisco Catalyst... | 77 views | 0 helpful votes


get a console cable and and console to usb cable and plug it into the console port of the switch and type in the interface this:
- enable
- config t
- write erase
-(you should be promoted here type 'y')
- reload
-(should be promoted again type 'n')
-(should be promoted again type 'y')


This will rebuild config to factory settings.

Cisco Catalyst... | 275 views | 0 helpful votes


Hi

I have checked and no data found for that S/N

Thanks

Cisco Catalyst... | 224 views | 0 helpful votes


If open the internet explorer and type 192.168.0.1 in the command line to the upper left window, it should send you to the router setup feature. The authorization is "adm" without the quote signs. No password needed. Open the program and follow it to the Password section whereby you can enter a new password and your on your way.

Cisco Catalyst... | 64 views | 0 helpful votes


best attempt i'd say if there isn't any custom programming done on the switch. is to follow this. http://www.cisco.com/en/US/products/hw/switches/ps700/products_password_recovery09186a0080133fb1.shtml

Cisco Catalyst... | 44 views | 0 helpful votes


You can only reset password this way:
1.
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
2.Unplug the power cable.
3. Hold down the mode button located on the left side of the front panel, while you reconnect the power cable to the switch
4. Release the Mode button when the SYST LED blinks amber and then turns solid green. When you release the Mode button, the SYST LED blinks green.
5. switch: flash_init
6. switch: load_helper
7. switch: dir flash:
8. switch: rename flash:config.text flash:config.old
Rename config.text to config.old. In that file the password is stored.
9. switch: boot
10. Enter "n" at the prompt to abort the initial configuration dialog
11. Type en to enable
12. Switch#rename flash:config.old flash:config.text
13. Switch#copy flash:config.text system:running-config
14. Overwrite the current passwords:
conf term
enable secret <new pass>
enable password <new pass>
line vty 0 15
password <new pass>
login
line con 0
password <new pass>

15. write memory
16. copy run start

Cisco Catalyst... | 192 views | 0 helpful votes


Now which password did you forget ? log in ? internet ? and which operating system ??

Restart your computer repeatedly tapping the f8 key to enter safe mode while the screen is black once in safe mode where the only things working will be your keyboard and mouse allowing you to attempt to repair your computer
Windows Advanced Options Menu
Please select an option:
Safe Mode
Safe Mode with Networking
Safe Mode with Command Prompt
Enable Boot Logging
Enable VGA mode
Last Known Good Configuration (your most recent settings that worked)
Directory Services Restore Mode (Windows domain controllers only)
Debugging Mode
Start Windows Normally
Reboot
Return to OS Choices Menu
Use the up and down arrow keys to move the highlight to your choice
select safe mode with command prompt
Click start run type cmd press Enter
black screen should open DOS mode
this will vary depending on your operating system
type in net user username
For eg. If you want to change administrator password , type net user Administrator
It will prompt you to enter the new password.
Enter the new password and the password is changed
http://wiki.ljackson.us/Control_Userpasswords2
if this fails you will need to
Select safe mode with networking to download
you could download all of these or just one save them to a usb drive for later use if one fails to remove the password
Windows Password Recovery Basic
http://majorgeeks.com/CmosPwd_d239.html
A CMOS BIOS password recovery tool
Editors note: This tool should only be used by experienced computer users.
Please see the enclosed read me if you would like to run it from Windows.
Failure to follow instructions (from Windows) will cause your anti-virus to flag this as a virus.
http://majorgeeks.com/Dr._Freeware_System_Utilities_d6416.html Dr.Freeware System Utilities which includes data recovery software, data backup, password reset tools for Windows helps you to maintain your system. Dr.Freeware is freeware, you can download and use it for free.

Cisco Catalyst... | 89 views | 0 helpful votes

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