Cisco Firewall :: ASA 5520 - Verifying Flash Image Fails?
Nov 1, 2011
I have an ASA 5520, currently running version 7.25-k8. I'm preparing for an upgrade to version 7.25(4), so I transferred the software code (obtained via Cisco download) to the firewall vis SCP. I then issued the "verify flash:asa725-k8.bin" and it fails. It comes back with the error that the CRC did not verify, Data Integrity has been compromised". My first thought was the image did not copy correctly, so I deleted it and transferred it again. I got the same error. Then I decided to run a verify against the actual current code that was running on the firewall, and it came back with the same error. I don't understand what the problem is. I don't tend to think it's an SSH key related problem, as the method I use to access the firewall is via SSH and I have no problems. Worth noting,this firewall is part of an active/standby pair, and I observe the same behavior on the failover unit, it fails to verify.
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Jan 6, 2013
I've had occasional issues with 5505 upgrades going south when the boot hangs on the image load due to a corrupt image. I need a way to validate the checksum of the new image after it is copied to flash. Remote upgrades become a real pain when you have to go onside just to delete an image, copy it into flash again, and boot.
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Dec 12, 2012
I need to upgrade the ASA 5520 from OS 8.2(5)26 to 8.2(5)33. the ASA only has 64M of flash. I have a 256M flash card. What are the steps to upgrade the flash? I am not sure how it will boot up because the new flash will be blank?
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Mar 25, 2013
I need to upgrade the flash memory of the ASA 5520 from 256Mb to 512Mb. As far as I realized the built-in flash memory called system compact flash and there is also an empty slot which it is possible to install a user flash.
What is the difference between user and system compact flash? and for upgrade can I just insert the user compact flash or do I need to upgrade the system compact flash? Where can I find the part number for each type?
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Feb 28, 2012
i am using asa821-k8.bin image, in my cisco 5520, How can i check if my IOS is vulnerable ?
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Sep 8, 2011
When I use ASDM or the CLI to copy (ftp) files from my management station to flash on my ASA5520. I get to 99% and then the gui or cli window hangs.
The ASA itself completely freezes i.e. no traffic in or out until I kill the transfer window and then it may reboot
[and yes, there is more than enough free space on the flash file system for the files]
ASA5520 V8.2(3) / ASDM V6.4(5)
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Jun 3, 2012
The customer forgot the password for the ASA SSM-20 ips module installed in ASA 5520 Fw.show module in customer FW shows it up state. I brought it to our office teat bed. here it show
ASA1# sh module
Mod Card Type Model Serial No.
--- -------------------------------------------- ------------------ -----------
0 ASA 5520 Adaptive Security Appliance ASA5520-K8 JMX1022K03A
1 ASA 5500 Series Security Services Module-20 ASA-SSM-20 JAB101003C2
Mod MAC Address Range Hw Version Fw Version Sw Version
[code]....*-
what to do with this module in my test bed.I have to take it back to the customer site to use it in their ASA itself to troubleshoot.There it the status is up and i did use all the hw-module option but no use. The version is 5.0. This module is more than 5 years old and so far no one upgrade the image. ASA 5520 running 8.2.5.
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Dec 22, 2012
I purchased a used AIR BR1310G-A--K9-R from a local high school that was rebuilding their athletic field. The AP was used for communications for their pressbox staff. The AIR BR1310G was part of the schools campus wide WiFi network and was upgraded to an lwapp image c1310-k9w8-m 12.4 3c JA. Our home sits on a large lot and I would like to convert the BR1310G back to an autonomous AP.
In order convert it back to an automonous AP, I will need the original image. The school used a contractor for their WiFi network and they do not have a backup of the original image. I do not have a service account with Cisco so downloading the autonomous image from the Cisco website is out. What are my options for either obtaining an image file or using the current managed image without a WLC?
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Jun 23, 2011
I have a PIX 501 and I am looking to download an OS as my current image is corrupt and the PIX will not boot. Where I can download the O/S from so I can tftp it across to the router.
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Sep 15, 2012
I have a cisco 2821 Router , it was operating fine but for the past 2 days its having a weird problem.During operation suddenly the connection is lost and when checked through console there is no IOS image on the Router (all configuration is erased and the router boots up in rommon mode and there is no IOS on dir Flash:I installed ios on it through tftp but again after some random time the IOS is automatically erased from flash i checked the config register value and its fine at 0x2102.
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Oct 24, 2012
I have a Cisco 7204 vxr router that does not have a valid image on the boot flash or on the pcmcia card (disk 2). I tried everything i could to try and get the router to recognize the flash but it keeps giving me a magic card error. I'm losing my mind slowly but surely.
The router boots into Rommon every time and the Rommon options for this router are horrible. No tftpdnld option. Can I get this router to boot from tftp, from Rommon?
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Jun 19, 2012
I have two Routers (C1812 & C1841) each having different version of IOS images. I was wondering if its possible to copy IOS image from flash of one Router and use it to upgrade another.
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Oct 3, 2012
I have Cisco 2600 series Router which has only 32 MB flash memory. I tried to load IOS image in that but image size is 29 Mb in compressed form. The minimum i found is 5 MB in compressed form but it is missing so many commands. that in 32 MB flash, how can I load image which has almost all the commands.
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Dec 8, 2011
I am in vain trying to transfer image to my asa5505, but fails in last step copying the file to flash:
Boots to rommon
tftpdnld image -> asa5505 boots on tftp file in en mode, i try to copy command but this fails, always getting No such device error. I have tried all different solutions found on google for this step, but it simply does not work, as i am never able to ping anything from the ASA.
rommon #6> tftpdnld
ROMMON Variable Settings:
ADDRESS=192.168.1.115
SERVER=192.168.1.113
GATEWAY=192.168.1.254
PORT=Ethernet0/0
VLAN=untagged
IMAGE=asa805-k8.bin
CONFIG=
LINKTIMEOUT=20
PKTTIMEOUT=4
RETRY=20
tftp asa805-k8.bin@192.168.1.113 via 192.168.1.254
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
ciscoasa# copy tftp disk0:
Address or name of remote host []? 192.168.1.113
Source filename []? asa805-k8.bin
Destination filename [asa805-k8.bin]?
Accessing tftp://192.168.1.113/asa805-k8.bin...
%Error opening tftp://192.168.1.113/asa805-k8.bin (No such device)
Apparently it dont work with Eth, nor with vlan 1. Any way to shut down all functions in router so i can access everything?
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Jun 24, 2012
I am trying to configure two inside interfaces without NAT. I am not using nat-control and I have added exemptions for the two networks. I can communicate between the two networks and to the Internet just fine.I would like to verify that NAT is disabled between the two interfaces. I also need to make sure that the Interface IP (specifically for the traffic from inside-test to the inside network) is not added to packets between the two networks. I would like to be able to verify this as well. In other words I need to have the Source IP address from the originating connection on the inside-test network passed along through to the Inside network device without being replaced by the Interface's IP address. This is a test config for a production environment that will be using a load balancer. The config I have may be working in this regard and the load balancer may be replacing this IP address (that is what I am trying to test), but I am not certain.So far I have the following NAT related running-config command (in regards to these two interfaces):
access-list NAT_Exempt extended permit ip 192.168.12.0 255.255.255.0 interface insideaccess-list NAT_Exempt extended permit ip 192.168.3.0 255.255.255.0 interface Inside-testaccess-list NAT_Exempt extended permit ip 192.168.12.0 255.255.255.0 192.168.3.0 255.255.255.0access-list NAT_Exempt_2 extended permit ip 192.168.12.0 255.255.255.0 interface insideaccess-list NAT_Exempt_2 extended permit ip 192.168.3.0 255.255.255.0 interface Inside-testaccess-list NAT_Exempt_2 extended permit ip 192.168.3.0 255.255.255.0 192.168.12.0 255.255.255.0
nat (inside) 0 access-list NAT_Exempt_2nat (inside) 1 0.0.0.0 0.0.0.0nat (Inside-test) 0 access-list NAT_Exemptnat (Inside-test) 1 0.0.0.0 0.0.0.0
global (outside) 1 interfaceglobal (Inside-test) 1 interface
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Feb 9, 2012
I'm have upgraded our ASA5510's from 7.0.8 to 8.4.3 and now I just need to do the ASDM, but get this error? The bin file has been uploaded: [code] Device Manager image set, but not a valid image file disk0:/asdm-647.bin.
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Jun 5, 2012
I am attempting to install a 512 MB Cisco COmpact Flash for an ASA 5520. We have inserted the compact flash but when we do a DIR, it does not show. even as an unformatted device.
What do we need to do to make this a usable CF? Do I just need to reload the ASA or do I need to format the CF. It has been inserted into the slot in the back of the ASA 5520 and we have ensured that is had been seated properly.
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Feb 26, 2012
Trying to copy the system image file from the sup-bootflash to a new 64MB ATA flash card. Yes the software can support the 64MB card.
The ATA flash card was formated successfully, however I cannot copy the system image to it so that it can boot after a power loss.
The command I tried was: console(enabled) copy sup-bootflash: slot0:
The source filename was typed in as shown in the Show Verison command.The result was: Error opening slot0: no such device.I suspect that I am missing something obvious as I am new to Cisco Switches.
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Jul 2, 2011
I Get a mail From Someone which claims which says that they are forwarding a mail from someone How do i find out that the mail i have received s from that original person onlyBecause that person is not replying to me directlyHe forwards mail to a second person{assume} and that person forward me the mail::how do i find out that the mail i have got is really originated from that first person only
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May 12, 2011
Need this file to erase my flash memory?
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Nov 14, 2012
We have a customer that has a ASA 5525-x reporting only 4g flash memory rather than 8g has any 4g version of the 5525 or is the IOS reporting incorrectly the size, as it seems to be embedded on these units as a USB disk internal.
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Apr 6, 2011
I am in the process of setting up the ASA5520 with the latest 8.4 firmware latest Anyconnect 3.0.
Unfortunately, the internal memory is sufficient enough for the ASA ASDM only. It says not enough memory when I tried to tftp the Anyconnect pkg.There is a external flash slot at the back of the ASA, I've inserted a 256mb CF card but when I do a show disk1: it shows
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Jan 8, 2013
I just got a brand new ASA 5550, i configured the port g0/0 on asa with an ip address 192.168.10.1 then configure my computer with ip 192.168.10.2 and default gateway is 192.168.10.1. I'm able to ping the asa from my computer. I remote to ASA thru the console port and try to copy iOS from flash to my pc but it doesn't work.
Cisco asa# copy flash tftp://192.168.10.2/asa804-k8.bin
Source file name []? asa804-k8.bin
Address or name of remote host [192.168.10.2]?
Destination file name [asa804-k8.bin]?
Writing file tftp://192.168.10.2/asa804-k8.bin...
!%Error writing tftp://192.168.10.2/asa804-k8.bin (Timed out attempting to connect)
Cisco asa#
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Jan 11, 2012
I am needing to upgrade the Flash card on our current ASA from 64mb to a 1GB card to make way from upgrading from 8.0 to 8.4. When i copy all the contents from the 64MB card through a card reader i am not getting the startup-config file copied over. I checked to make sure that all hidden files are shown, but i am not seeing it. I backed up the startup-config from the old 64mb card to a tftp server before switching the cards out. Is their something that i am missing?
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Nov 15, 2012
I used to have the problem where QuickVPN keeps on trying to verify the network because the RV042 cannot get the final ping to the client.I then bought a RV042 HW version 3 on the VPN side and I installed RV042's at the clients as well.This may look like overkill but believe me, it gives peace of mind, it made things a whole lot better, everybody happy.I am going to set up tunnels but for the time being the clients use QuickVPN. The above setup is all good if people access the vpn from the same source.
I now have a problem where one of our people is in Vietnam and she cannot access the vpn due to the "verifying network" loop.Looking at the log everything looks great, I compared a successful connect with an unsuccessful one and the logs are identical.The only difference is that the final ping is blocked (recorded in the QuickVPN log on the client side).The client uses W7 with firewall on.No need to repeat suggestions, such as turing printer sharing off, I have been through all that. isn't this simply caused by the ISP in Vietnam blocking pings ?
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Jun 5, 2013
In order to do a flash upgrade on a 5510, is there any way to get the files from the existing flash onto the new flash before you replace existing flash? Is there an online procedure?
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May 28, 2012
How do you save the command output from the CLI to a file on flash?
With IOS, I would normally use a pipe command to redirect to tftp, but the ASA doesn't support this as far as I can tell. As a work around I was thinking I could save the output to flash and then tftp that file off the ASA.
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Feb 1, 2012
I deleted the flash from an ASA5510. I was able to tftp a version back into the device, but cannot seem to correctly have the box boot from this flash. I get the following error:
!WARNING: BOOT variable added, but not a valid image disk0: /asa831-k8.bin
*** Output from config line 41,"boot system disk0:/asa83..."
I have tried every save syntax i can think of to save this flash, but have yet to have it boot with an image ( I keep booting into ROMMON and have to tftp the image back in)
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Oct 19, 2012
I was trying to erase some bad test configs on my 5505 with a write erase, but all VLAN and Ethernet configs remained. I hastily decided to do an erase flash. No I'm stuck at a ROMMON prompt with no image found to boot I'm hoping I don't have to TFTP a factory image. How do I find the images on disk0 and copy them?
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May 9, 2012
My client has had to replace their ASA 5510. Upon importing the image to the brand new ASA they are unable to write to the flash.
They have run fcsk disk0: to no avail. show file system show 0 and 0 for Flash size and Free space on disk0.
Is there anything that can be done, short of formating flash and trying to reinstall the image? I have asked them to reload the ASA but they are reluctant to do so as they don't want the site to lose connectivity.
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May 4, 2011
I have two pix525 firewalls cann't boot up normaly and i find [[URL] no longer provides the falsh erase tool ,erasedisk.bin,download.
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Jun 22, 2011
I need to upgrade the compact flash of my ASA 5510 from 256MB to 512MB. A friend's recommendation was to buy a card reader, copy all of the data from the existing card and paste it to the new compact flash. I have a hard time believing that it's that straight forward.
Any safer, more foolproof way of migrating between flash cards?
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Jan 10, 2013
We have RV220W at corporate office...intent is to have (5) groups of (3) users each connecting via VPN. Had assumed would be using QuickVPN and have set up users, etc and connections at current locations are quick, smooth, reliable. I have set up (2) locations (6 users so far). However, after 4th connection (no matter where or in what order) client hangs at "Verifying Network" and doesn't complete connection. So, I have unique usernames, etc but each of the (3) at a location are hitting the router with the same IP. Is this the problem? I'm sure the RV220W can handle 15 simultaneous connections, but can the router deal with (3) connections from the same external IP?
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