Cisco WAN :: Password Recovery On A Catalyst 3850 Switch
May 23, 2013
I'm trying to do password recovery on a Catalyst 3850 switch..I've read the section in this: url...where it says that I need to have physical access to the switch (I do), and that I reset the password if I issue a break command and interrupt the boot procedure. I've tried to do that... it gives me the "switch:" prompt, so I think I've interrupted the boot procedure successfully, but, what do I do next?I've successfully done recoveries on Catalyst 2950s, 3550s & 3560s, but the procedure for this one, if I'm reading the link above right, sounds like it's completely different.
Im trying to access the switch to reset the password to factory defaults (please see switch output Astrix has removed customer identifying information for security purposes.) Each time I reboot the switch and try and access the password recover mode this same output below starts and im still not able to access the recovery area of the switch
cisco WS-C3560G-48PS (PowerPC405) processor (revision F0) with 122880K/8184K bytes of memory. Processor board ID FOC1133Y28Q
I have one CISCO 6509 Switch in my store. I tired to login in that switch but couldnt.. Once it's booted it's asking me: rd: . Find the attachment. I recover the password by changing confreg value but that also failed.
i need to recover a router Cisco 2801. I lost the password and the "no service password-recovery" is configured. I have done many attempts with the procedure in this link :URL
I understand that Cisco *wants* the APs to be directly connected to the new 3850.I have a few questions. Unfortunately, I think I know the answers. I just want to confirm.
a. When MA/MC is enabled on the 3850, does the 3850 start intercepting *all* CAPWAP packets it sees (much like CDP)? Even non-Cisco CAPWAP packets?
b. If I have a WLC 5500 upstream from the 3850, would APs hanging off a downstream 2960 be able to register to the 5500 through the 3850 when the 3850 is NOT in MA/MC mode?
c. If I have a WLC 5500 upstream from the 3850, would APs hanging off a downstream 2960 be able to register to the 5500 through the 3850 when the 3850 IS in MA/MC mode?
What I'm afraid of is:
a. yes, yes b. yes c. no
From the Q&A page:Q. Does the Cisco Catalyst 3850 support indirectly connected access points?A. No. The Cisco Catalyst 3850 switch will always terminate the CAPWAP tunnel locally. Pass-through mode or indirectly connected access point is not supported at this time.
We have a new stack of two Catalyst 3850-48T's running IOS XE 3.02.00 (we are upgrading to 3.02.01 this weekend.)We noticed the CPU usage is around 30% even when there is almost no traffic going through the switch. We haven't seen any indication that it is causing a problem, but is this considered a normal baseline?I attached my config (with passwords sanitized,) show ver, show controllers utilization, and show process cpu history.
I noticed this behavior is normal on 2900XL/3500XL switches, but I didn't find anything relating it to 3850 switches. Does the same thing apply to the 3850 switches? [code] url...
Based on what i am reading on the Catalyst 3850 datasheet, the controller functionality comes by default if i have a IP Base of IP Services license on the switch. Is this correct or do i need additional license to enable the controller functionality?What capabilities does below license provide ?
LIC-CT3850-UPG (Primary upgrade license SKU for Cisco 3850 wireless controller)
have a Switch I bought off a guy at work. Just to get into the Switching world of Cisco. He doesnt know the password on it and i cant reset the switch. I would like to mess around with it more but it doesnt load the flash or helper. It just sits there and holds. I have tried the password recovery and everything. Trust me, everything is correct, but it wont work for me. I cant load a new image to it because I dont have access to a server to get it from.
Base ethernet MAC Address: 00:0a:8a:94:58:c0Xmodem file system is available.
The system has been interrupted prior to initializing theflash filesystem. The following commands will initializethe flash filesystem, and finish loading the operatingsystem software:
Im trying to access the switch to reset the password to factory defaults (please see switch output Astrix has removed customer identifying information for security purposes.) Each time I reboot the switch and try and access the password recover mode this same output below starts and im still not able to access the recovery area of the switch
cisco WS-C3560G-48PS (PowerPC405) processor (revision F0) with 122880K/8184K bytes of memory.
Processor board ID FOC1133Y28Q Last reset from power-on 1 Virtual Ethernet interface 52 Gigabit Ethernet interfaces The password-recovery mechanism is enabled.
I have the wrong code on the device. I can get to the switch: prompt. The manual say to connect a PC to the management port. But it does not come up. x modem does not seem to work. I found some commands :
Examples : This example shows how to clear the Ethernet management port statistics: switch: mgmt_clr
I have problem recovering my cisco 501 pix password. I followed instructions on this pageurl... but it seems its not working. I cant ping my TFTP Server on my pc. I tryed to disable firewall on my pc, i did a fresh install Windows but still i cant ping my TFTP Server on my PC.
I just bought one of these in and it was in production and I have no way of getting a hold of the login information. Is there a way to wipe these to factory defaults? I have been looking everywhere with no such luck.
I am a student pursuing a CCNA certification currently. I recently came across a lot of 3548 xl switches. They power up fine, post with out problem and load flash. The problem I am running into is that the console is password protected. I have found the password recovery procedure for this switch, but it requires the use of the mode button. I have tried this process several times and the flash file is loaded with the startup config file. How do I perform a password recovery on a switch with a broken mode button?
To configure my Cisco, I use the console cable but as I have no serial port on my PC, I use a USB to serial cable which I plug the console. I had lost this USB cable -> serial but I found another one. So I started to configure my Cisco by copying from an existing config. I found out that a prior the converter is defective and copy the wrong config.
I had copied the enable secret password and it badly copied! No luck, I made a copy run start. Therefore more accessible to Cisco! When I start the Cisco, I see what activated "the Mechanism password-recovery is enabled". so I followed the procedure Cisco
I go flash_init: OK but when I type "load_helper" Unknown command it say to me .... I'm stuck!
The model is my Cisco: Cisco WS-C2960G-24TS-S SW Version 12.2(55)SE3 Sw image C2960S-UNIVERSALK9-M
I have a couple of 877s which have "no service password recovery" set and something has happened to the flash or the IOS has been lost for one reason or another.
When trying to boot the routers, they all display similar to this, which then repeats:
[code]....
Or words to the effect of there being no IOS at all, unable to boot, but the result is the same, it just loops and there's nothing I can do to break the sequence!
I've tried taking the flash from a working 877 and replacing the card but this doesn't work and unfortunately, putting the once working strataflash card back in the working 877, it gets the same problem!
I have a cisco 515e pix but where I bought it from did not get the machine back to default. I boot it up and get to the user prompt, type enable and it asks for a username and then a password. I am new to this and am have no problems with router and switch password recoverys but when I look at the cisco documentation it is a bit overwhelming and I am not quite sure what it is that they want me to do to fix this. I have downloaded all the password recovery software loads and have the one I need for 6.x which is what the box is running I am just not sure what it is that I need to do. Can I use that recovery software from directly from my pc using a tftp server?
I need to recover switch enable password, i have already configured AAA also, when i am tryig to follow below proceedure finally saying Authorization failed. how can i recover enable password,If I try to recover password like this description says [URL]
Step 1 Connect a terminal or PC with terminal-emulation software to the switch console port.
Step 2 Set the line speed on the emulation software to 9600 baud.
Step 3 Power off the switch. Reconnect the power cord to the switch and, within 15 seconds, press the Mode button while the System LED is still flashing green.
Base ethernet MAC Address: 00:0x:xx:xx:xx:xx Xmodem file system is available. The password-recovery mechanism is enabled.
The system has been interrupted prior to initializing the flash filesystem. The following commands will initialize the flash filesystem, and finish loading the operating system software:
I was just configured a 3800 router with this command. I cannot get to the ROMMON mode anymore. Cisco says you should press Break key within 5 seconds after the image decompresses during the boot. But mine is ignoring it and going to load running config directly.
I have a 4404 running firmware 7.0 and something happened (don't think it was a hack), but all of a sudden I can't login to the box via web or ssh or even telnet.
In trying the recovery procedure, I get a lot of messages scrolling through and cannot do the Restore-Password command on the CLI.
I'm attaching the whole capture, but here's a truncated capture from the procedure:
*fp_main_task: Nov 21 10:39:46.501: sshpmGetCID: comparing to row 0, CA cert >bsnOldDefaultCaCert< *fp_main_task: Nov 21 10:39:46.501: sshpmGetCID: comparing to row 1, CA cert >bsnDefaultRootCaCert<
[Code].....
So as you can see, my prompt to enter the command is taken up by this fp_main message and it uses up the first and only time I can enter this in. I'm trying everything I can to not have to go back to factory defaults.
How is-it possible to do a recovery password for sysadmin on ADE-OS ?We're using LMS 4.2.1 and my customer doesn't remember the username and password created during installation.We have the admin user for the https connection.
I wanted to do with my Cisco 2800, a password recovery. I have read the instructions and Cisco just came up at six.
Complete these steps in order to recover your password:
Shut down the router. Remove the compact flash that is at the back of the router. Power on the router. Once the Rommon1> prompt appears, enter this command:
confreg 0x2142Insert the compact flash. Type reset.
BUT I had forgotten to plug the flash card. And now comes via console hieroglyphics only
I have 3 x ASA 5510 & 2 x ASA 5520, that require resetting back to factory default, the customer has removed the External Flash Cards, and i've checked internally on each unit the Internal Flash car is still present, is it possible to run a password recovery then a factory reset? and how would i go about resetting each unit to the new configuration.
the " password recovery functionality is disabled " service is running on the system .
im trying to access rommon in a Cisco 851, with not much success, i am sending a break after the image is loaded ( in the time frame that is allowed for that) .
I have a cisco PIX-515e which i have connected to a emulator through the console port, and im having trouble erasing data from it. I can get into 'pixfirewall' mode and 'monitor' mode but thats as far as i get. i have tried 'write erase' and 'configure factory-default' in both modes to no success.
I am studying for the CCNA and have my own lab. Several months ago I setup the lab and hand things running well, and decided to put it all away for a while. Alas, now that I have brought it all out again, I don't remember the passwords I used and have since destroyed my documentation, so this is perfect practice at password recovery/config maintenance type of stuff.
I am working on a 2610XM. When I power on the router, I see all the information pasted below. I have tried the password recovery processes described in the cisco knowledge base where we use the rommon prompt to load 0x2142, reset, then enable secret <password> and followed the remainder of the instructions, but when I reload the router after the process, the new password I've set still does not work.
Some things that are not consistent from the documentation that I am seeing are the messages Slot is empty and WIC is empty.
I am wondering if my router does not use 0x2102 for it's load, but it will not show what it is using and I can't run show version because of the password. I am connecting through the console port and using putty to access and configure. Below is a paste of the startup messages after the router decompresses it's image.
Processor board ID JAD070709N9 (1997350087) M860 processor: part number 5, mask 2 Bridging software.
I am trying to use the password recovery for an NME-16 and am having trouble. I am unable to look at my files in dir to so I can rename them. I can get the switch to bypass the config and come with the switch: prompt, but can not do anything more. I am trying the password recovery guide, but cant get to the text file to rename. I am using a 2811 router.
I purchased a Cisco 851 router from ebay a few weeks ago that has the "no service password-recovery" option enabled. I've tried every "break" option i could find, and this thing does not seem to let me get in. I asked the seller for the password, and they refused (though i cant even get to a prompt to enter a password) or ROMMON. The unit comes up and reports its trying to connect to "Translating "stipp.srv.hcvlny.cv.net"...domain server" once it comes up, and thats it. [code]
