Question about Cisco Catalyst 2912 LRE XL (WS-C2912-LRE-XL-RF) Networking Switch

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How do you perform a "factory reset" on a cisco c2912-lre-xl ?

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From a console login, should look something like this:

Switch>

Go to privileged EXEC mode with the command "Enable"

Switch#
Enter the command "erase startup-config"

It will prompt you to confirm
When you confirm, it will bring you back to this prompt

Switch#

Now, enter the command "reload"
It will prompt you to confirm. And after a reload, you will be brought back to a screen that looks like this:

Press ENTER to begin

NOTE: if you are telnetting to the switch it WILL boot you out as you cannot keep an established telnet session without VTY line passwords and those are cleared by this process.

ALSO NOTE: This will NOT erase your VLAN data, VLANs are stored in a special file in Flash on a Cisco switch and SHOULD NOT be erased without professional help as there is a risk of destroying the IOS load on the switch.

Posted on Oct 15, 2009

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How i reset to factory defaults without passwords?


That depends upon the brand of the router. It would be wise to google for the particular brand.

There often are software means to perform a reset but here are the hardware means.

For Netgear:

  1. Press and hold the Wireless On/Off and WPS buttons until the Power LED blinks red (about 6 seconds).
  2. Release the Wireless On/Off and WPS buttons and wait for the router to reboot.
For Linksys:

1. Press the red reset button on the back.
2. Unplug it from power for 30 seconds. Plug the power back in.

For Belkin:

1. Find the reset button (depends on the model).
2. Depress the reset button for 15 seconds.
3. Wait one minute for the router to restart.

Here is a tutorial for Cisco routers:

http://www.networkworld.com/article/2343961/cisco-subnet/how-to-reset-a-cisco-router-to-factory-default--removing-the-startup-configuration-file.html

Here is one for TP-Link:

http://www.tp-link.us/article/?faqid=496

For D-Link:

Push a paperclip into the hole marked reset on the back and keep it depressed for 10 seconds.

The default user name is usually admin and there is no password (password is blank).

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Don't try to repair. a chip, or just the power supply will cost more than a new router. Also new reuters perform better

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Cisco 7942 factory reset


When performing the factory reset procedure we are about to describe, it is important to keep in mind that the IP phone will lose all configuration files and phone applications. This means that it is necessary to have CallManager or CallManager Express setup so that the IP phone will be able to receive the new information (phone application and configuration) after the reset procedure is complete, otherwise it is most likely that the IP phone will not be usable until this information is loaded on to it.
This preparation also happens to be the procedure for upgrading a Cisco IP phone firmware.



Follow the steps below to successfully factory reset your Cisco 7942, 7962 IP phone:
  1. Unplug the power cable from the phone and then plug it back in. The phone begins its power up cycle.
  2. While the phone is powering up, and before the Speaker button flashes on and off, press and hold #. Continue to hold # until each line button flashes on and off in sequence in amber.
  3. Release # and press 123456789*0#.
You can press a key twice in a row, but if you press the keys out of sequence, the factory reset will not take place.
After you press these keys, the line buttons on the phone flash red and the phone goes through the factory reset process.
Do not power down the phone until it completes the factory reset process and the main screen appears.

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2 Answers

Forgot guest pw on cisco e2500


If a password was set by user, no one else will know it if you forget it.
If the password needs to be reset to factory, so you can log in with the "default" password AND RE-SETUP EVERYTHING, then you'll need to reset the Linksys E2500 to factory defaults. You can usually do that via a special button or sequence of actions.
The E2500 manual will have specific directions for performing a factory default reset. You can download the manual for the E2500 from http://support.linksys.com/en-us/support/routers/E2500

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1 Answer

My Cisco IP Phone 7945G keeps rebooting after I did a factory reset. Is there a way to fix this?


According to Cisco, when initiating a factory reset procedure certain information from the IP phone is erased while other information is reset to the factory default value, as shown in the list below:


Information Erased:
  • CTL File (Certificate Trust List)
  • LSC File (Locally Significant Certificate)
  • IP Phone Call History (Calls Received, Placed, Missed etc)
  • Phone application
Information Reset to Default:
  • User configuration settings (ring tone, screen brightness, sound levels etc)
  • Network configuration settings

t is highly advisable to follow the firmware upgrade procedure in a non-working environment to ensure other phones are not affected (in case of an accidental reboot), and to avoid the freshly factory reset ip phones obtaining the working environment's settings.


Please use the link below and follow the instruction http://www.firewall.cx/downloads/cisco-tools-a-applications/cisco-ip-phone-a-ata-firmware-downloads.html


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2 Answers

How to reset to factory default?


Hi nbergma,

To Factory reset your router you need to locate the Reset Button at the back of the router. The Reset Button is the small hole at the back and you need a Pen or a Paperclip to press it. Press and hold the reset button for 10-15 seconds. Make sure that the router is on when you reset it.

Thanks for using Fixya.

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1 Answer

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Go to the Cisco site and download Network magic. You can use the basic version free. It has a network map that shows you everything on your network. It will give you a full version on a trial basis, but after that you can continue to use the basic.

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It's possible that the management port is on another VLAN or is not enabled. Your most reliable bet is to try a serial connection to console in.

Alternatively, there is a procedure that will work even if you don't know the password:

http://www.cisco.com/en/US/docs/switches/lan/catalyst2900xl_3500xl/release12.0_5_wc5/swg/swtrbl.html#wp1028958

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