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Sometimes your system may display an error indicating error 5505 15. This issue can be caused by a number of reasons.
The above error could have happened on boot because the ASA did not have a boot file, did not boot with the wrong boot, or the image might have been configured to boot from the hard drive to access the source. It could also be a hardware issue with these ASAs, like bad flash memory, which means you’ll have to do this with Cisco or a device support vendor!
The following instructions will show you how to organize an ASA in rommon on a shoe or boot the server from which tftp boots normally, copy the boot symbolic file from TFTP to the ASA, and then reboot it into normal shoes or boots.
– We will assign the ASA the exact Ethernet IP address 0/0 10.1.1.200.
– The name of the bootable image file Cisco ASA – ASA over TFTP often asa-k9.bin.
– Connect ASA Ethernet 0/0 from your computer’s Ethernet to the same network switch.
– Download a free TFTP server and mount it on your desktop computer and place asa trust asa-k9.On in the bin root directory most often connected to the TFTP server. TFTP Server is very simple software you can buyon google. There is a related forum at www.solarwinds.com.
– The ASA and the computer are indeed on the same network. We will use asa ethernet0 / 0. The IP address of the tftp server (your computer) should be 10.1.1.100 (so you have to manually assign your computer an IP address of 10.1.1.100 and a subnet mask of 255.255.255.0 – you don’t need to assign a gateway or your DNS)
Connect your computer to the ASA through the console while the firewall starts up and you will be prompted once “Use BREAK or ESC to abort the boot process”, press Escape and you will be taken to rommon: (rommon is similar to safe mode in Windows). Start typing immediately the following:
Rommon # 0> PORT = ETHERNET0 / 0
Ethernet0 / 0
Link UPMAC Address: 0005-9858-df5g-e21d
rommon # 1> ADDRESS = 10.1.1.200
rommon # 2> SERVER = 10.1.1.100
rommon # 3> GATEWAY = 10.1.1.100
rommon # 4> IMAGE = asa-k9.bin
rommon # 5> tftp
Immediately go into activation mode without paying attention to the password
ciscoasa # en
You can format it here in flash memory. Formatting flash will erase all content on it, including operating system images and configuration files that you are likely to have You will need it to boot your IOS (as described below). And after the usual exercises, you will need to reconfigure ASa yourself if your enterprise does not have a backup that will allow it to function.
ciscoasa (config) # Format Flash
ciscoasa (config) # write meme
Give the firewall a good IP address, set the default, and upload a copy of the image file for TFTP:
ciscoasa (config) # Ethernet interface 0/0
Ciscoasa (config-if) # IP Information 10.1.1.200 255.255.0.0
ciscoasa (config-if) # no shutdown
ciscoasa (config-if) # internal name if
ciscoasa (config-if) # security level 100
ciscoasa (config-if) # exit
ciscoasa (config) # Route nothing outside 0.0.0.0.0 0.0.0.0 10.1.1.200
ciscoasa (config) # copy tftp: flash:
ciscoasa # craft memFind the ASA config connection, change it to 0x1 to make sure it gets disconnected from Flash and not TFTP.
ciscoasa # specify the version
Look at the bottom of the corresponding Show Version, and you should get something similar to:
The configuration register is always 0x2014
(If you have a different .trash image name, update it here)
Save it and restart.
ciscoasa # Restart
ciscoasa # Wr
This can restart the ASA.
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I made some progress with a new photo. You can upload a photo to the exhibition. Thanks for looking at the result, I think. I’m not sure what to do. I am in basic mode on IOS. What should I do now?
ROMMON Cisco Systems Release (1.0 (11) 2) # 0: Jan 26, 10:43:08 AM PST 2006
Cisco Security Appliance Administrator (3 loader.0) # 0: Tue, May 08:13:03 PM 2010 PST
i82546GB rev03 Ethernet @ irq09 dev and others, index 00 MAC: 001d.a298.ecf6
i82546GB rev03 Ethernet @ irq09 dev 3 09 MAC index: 001d.a298.ecf7
i82546GB rev03 Ethernet for irq09 dev 2 index 02 MAC: 001d.a298.Rev03 ecf8
i82546gb Ethernet @ irq09 dev vs MAC index 03: 001d.a298.ecf9
i82547GI rev00 Gigabit Ethernet @ irq11 dev MAC Special Index 05: 000 0001.002
ATTENTION! It is not possible to write the firewall firmware. It’s ok if Flash is not enabled
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