Cisco WAN :: Can't Get 2500 Router To Go To ROMmon
Feb 16, 2012
I'm having a little trouble with a router I have got my hands on to practice for my CCNA.Im connected via serial>USB adapter and via XP HT on Win7. Router boots and I then break the boot sequence with ctrl-break. But then it does not go into ROMMON mode. It simply says this:
-System Bootstrap, Version 5.2(8a), RELEASE SOFTWARE
-Copyright (c) 1986-1995 by cisco Systems
-2500 processor with 2048 Kbytes of main memory
How I get it into ROMMON to reset the password on it.
Im trying to get into Rommon, Im reading thats the BREAK button, which im assuming obviously its the pause/break button on my keyboard, im pressing it till my finger turns blue a billion times and still no rommon noodles for me.
I do not have a cross over cable and have to use xmodem. I set the baud rate to 115200 and I can see everything fine. Using Tera Term when you send the file via xmodem it freezes and closes on packet #3 or about 384 bits. When simply clicking the send file button you get the error-
Not sure what to do from here. I have tried everything.Error you get when you boot the router:
System Bootstrap, Version 12.2(1r)XE1, RELEASE SOFTWARE (fc1) TAC Support: [URL] Copyright (c) 2001 by cisco Systems, Inc. C1700 platform with 32768 Kbytes of main memory loadprog: bad file magic number: 0x0 boot: cannot load "flash:"
Cisco router 3945 when unpacked from the box and powered on , it was not able to find boot loader image and booted in ROMMON mode. tried to boot from the external flash and tftp but still not able to.
We replaced router chassis 2 times and both the times faced the same problem.
I grew tired of entering my username and password in my 2500 series lab router. So I removed authentication by typing "no username xxxxxx password xxxxxx".Different than what I expected (removal of authentication), the router still prompted me for my username, it just won't accept anything I type.
I decided to do a password reset, I changed the register to 0x2102 and then typed "i" for Initialize. It comes back with error "Configuration from version 12.0 message may not be understood correctly." and then boots to running config with a prompt for username again....right back where I started.
why removing authentication by just typing "no username xxxxx password" would lock me out?If I am actually locked out or maybe there is another way to access?
I purchased a new E-2500 router and got it operating my computer, but my iphone will not log on, I set up guests and now it appears to log on, but doesn't.
I just moved into a new place with a DSL modem and am using the connection from the old tenant until my internet gets set up a while from now. I can plug the ethernet straight from the modem into either my laptop or desktop, and it works perfectly fine. But when I plug into my LinkSys 2500 router, it can't connect. I've tried rebooting the router, the router and the modem, plugging the modem back in first, plugging the router back in first. Nothing. But all I have to do is pull the ethernet cable from the internet port and click it into my laptop, and voila! internet. My name isn't on the account so I can't call the ISP and see if there are any special connection instructions, but I suspect there aren't any based on just being able to plug a computer straight into it.
I have a Cisco 4200 Wireless Router connected directly to my cable modem. To extend the wireless range I purchased a Cisco 2500 Wireless Router. As the house is "wired," I can connect the Cisco 2500 to the cable modem in a room separate from the Cisco 4200. My question is how do I configure the Cisco 2500 to connect to the network and provide wireless coverage from both routers.
how can I show the DHCP-range of a router if I don't have privilege level? (not in enable-mode),I can do a "show ip dhcp pool" - this will show me the range which is configured with the network-command.But there are also some dhcp-exclude-addresses which I can't see.... (I did a test on a router with full privilege-access)I need this because I have a router with limited access from our provider.
I recently purchased an E-2500, but notice that in parental controls I can only block 6 or 8 websites. In my WRT54GS I could just create additional rules and they would work. But in this device I am limited on the sites that can be blocked per device. How I can block additional sites?
I recently purchased an E-2500, but notice that in parental controls I can only block 6 or 8 websites. In my WRT54GS I could just create additional rules and they would work. But in this device I am limited on the sites that can be blocked per device. How I can block additional sites?
I have set up my linksys in my main hall, i get a decent wifi signal in my room. But i get very very poor signals on my phones (bb9780 and Samsung S2). I bought a Huawei WS320 wifi repeater. how to connect these two so that i can get a strong enough signal in my room ?
I cleared the flash (disk0) on my ASA and now I'm unable to restore it with an IOS.
When I attempt to load it with an IOS, it appears to load just fine. It even proceeds to restart, but when it boots back up it displays the error "No images in / Error 15: File not found. unable to boot an image" and goes to ROMMON.
My computer's IP is 10.0.0.1. I'm assigning the ASA 10.0.0.254. The image filename is asa724-k8.bin. Here's the output of the environmental variables and the attempted loading of the IOS:
I'm having problem on my 1841 it won't boot. No response on console but the led lights seems to be normal.I tried removing the CF then turn it on again to see if the router will go to rommon but didn't happen. I did try using another pc thinking the com1 is faulty but still no response on console nor rommon not showing up.
ASR 1004, has a image, which is on the harddrive, not bootflash and we have no boot commands in the configuration…We are running the ROMMON version ‘15_01rs’ The ASR boots into Rommon, as it cannot find a image (as expected), as the configuration has no boot commands.Trying to TFTP or getting an IOS back into bootflash is proving problematic.Follow all TFTP commands..
I think that my rommon image has become corrupt as it will not take a new IOS image. I have tried several images that are within the recommended size and work with another 2620 with exactly the same specification also some commands that are available are not recognised when typed
This question is about a Cisco 871, which has no bootable image in flash.The device is currently in rommon, and i am attempting to copy the correct .bin file over from usbflash0: but recieve the following error:unable to stat usbflash0:/: permission denied ?i get the same error if i try to boot from usb, or even try to view the directory.Config register is currently set to 0x2102? Typically in this scenario, i just boot from usb, and copy everything over in enable mode, but the lack of permission on this particular router has me stumped.
I'm trying to upgrade the ASR 1002 we just purchased and am having some issues (this is a new device and is not in service). I first tried upgrading the ROMMON using the upgrade rom-monitor filename bootflash:asr1000-rommon.150-1r.S.pkg all command, but the upgrade didn't seem to work completely. When I do a sh platform I get the below output showing 15.0(1r)S: [code]
no valid BOOT image foundFinal autoboot attempt from default boot device...Rommon upgrade requestedMaximum upgrade attempts exceeded, continuing with old Rommon...
I've also tried upgrading the IOS, but that is not working either. I tried "boot system flash:asr1000rp1-advipservicesk9.03.02.00.S.151-1.S.bin" command, but that did not work. I made sure the image was good using the "verify" command and made sure to set "config-register 0x2102". After I do a wr me and reload the router I get the below errors. [code]
When my ASA5505 starts it loads into rommon. I enter "boot" and everything boots fine. How do I make that load by default whenever it starts. Any correct command syntax to make that happen ?
I have a Cat6506. There were 2 Sup 720 in it for redundancy. They told me they had problems with this thing in the past needing to go out and reboot the machine. I need to go out periodically because it goes into ROMMON. I type boot and it comes back up. One time though neither one would reboot. I had to take a third one out there and reconfigure it. Now it is starting to do the same thing. One thing I did notice is they never connected it to an UPS. It is plugged strait into the wall with power going to two outlets. I am beginning to think there are spikes in the power occurring and this is sending it into ROMMON.
we have 55 of the 1841 routers here, and one of them always boots to ROMMON from a very cold (down 1 hour or more) start. The image on all 55 is c1841-ipbasek9-mz.124-24.T4.bin. 32 MB Cisco brand flash. Here's what's been done thus far:In ROMMON changed to 0x2102. Then 'reset' and the image boots fine. Change config-reg to 0x2102. Save config. Reload and image boots fine again. Wait an hour or more and boots to ROMMON.Boot from ROMMON to USBflash0: Format the CF then copy over the bin file. Change to 0x2102 and save. Reload and image boots fine again. Wait an hour or more and boots to ROMMON.Swapped CF with another unit. Again, works fine to reload, but shut down and restart an hour or more later and boots to ROMMON. Format this CF and copy over image while on router. Image boots fine. Wait an hour or more and boots to ROMMON.In each case of very cold start the configuration register has reverted to 0x0 {why it boots to ROMMON}Tried dx mode with 0x8001. Nothing seen that is unusual to me, but I'm not an expert by any means.It doesn't seem to a CF card problem, but could be a connection to the CF card and then something behind that.
Here is the output of diagnostic boot mode:
Cisco 1841 (revision 7.0) with 116736K/14336K bytes of memory. Processor board ID FTX1231W0JA 2 FastEthernet interfaces 2 Low-speed serial(sync/async) interfaces DRAM configuration is 64 bits wide with parity disabled. 191K bytes of NVRAM.
I have recently bought a used 2600XM, I was trying to boot it, I get some errors and end up being the ROMMON mode:
ystem Bootstrap, Version 12.2(8r) [cmong 8r], RELEASE SOFTWARE (fc1) Copyright (c) 2003 by cisco Systems, Inc. C2600 platform with 262144 Kbytes of main memory getdirent: bad file magic number, possibly out of sync boot: cannot determine first file name on device "flash:"
On new 1841 Testing Router, I deleted the flash & did the reload. After reloading, instantly I entered into the Rommon mode. I have a backup of the flash in my TFTP Server, which is connected to the 1841 Router. how can I restore my flash file into my 1841 Router. I can not get myself out of Rommon mode. I also now even can not ping the TFTP Server as well. Do I have to configure in the Rommon mode ?
how to restore the flash image via TFTP Server on my 1841 Router.
I have a customer that has an air-lap1142. He says that it boot to Rommon, and he has to issue the boot command to get it to boot. What is the rommon command to have the ap boot to the image automatically?
I would like to upgrade rommon on my Cisco 2801 but this is what I get: [code]The router stops here and I am forced to power off and on again and the upgrade does not succeed.
