Updating ios via xmodem

One of them will surely be deleting the IOS on a Cisco router or Cisco switch by mistake.Some times you do this during your Cisco CCNA studies when you are trying to do an IOS upgrade and it goes awry or sometimes just the slip of a keyboard click. When I rebooted the switch it attempted to load the IOS image, but failed.The only way to fix this is to load the switch into ROMMON mode and load a new IOS through XMODEM.As last resorts, you can also copy it from a Windows fileshare (using SMB/CIFS) or, $deity forbid, Xmodem. As you can see, this ASA is currently running version 8.2(2) along with ASDM version 6.3.5. Accessing tftp://1.125/asa825-k8..!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! At this point, the only thing that remains to do is to save your changes and reload your ASA so that it will boot into the new version of the software (and make use of the new version of ASDM).Because Cisco recommends that you stay within the same major version (unless you need the features introduced in newer major versions), I’m going to upgrade to 8.2(5). For example, here’s the information we need to complete the upgrade process: ciscoasa# copy tftp flash Address or name of remote host []?

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If you don’t have a TFTP server available it’s also possible to put it on a web server and use HTTP or HTTPS to transfer it to your ASA. ciscoasa# configure terminal ciscoasa(config)# boot system flash:/asa825-k8INFO: Converting flash:/asa825-k8to disk0:/asa825-k8ciscoasa(config)# asdm image flash:/asdm-645ciscoasa(config)# Easy enough, right?On your Cisco 2900 or 3550 switch you will be at the following prompt: switch: type in the following command(assuming this is the name of the Cisco IOS you have loaded on your computer that you are using hyperterminal from) switch: copy xmodem: flash:c3550-ipservicesk9-mz.122-25bin In hyperterminal, it will start to say….. CCCCCCCCCSSSSSSSSSSSS As soon as you see that(quickly) go in the hyperterminal menu to: Transfer Send File Browse(browse to the IOS filename) (You should see the file c3550-ipservicesk9-mz.122-25bin) Double click the c3550-ipservicesk9-mz.122-25bin file.Click Send You should see the file start to upload and transfer.After writing about how to upgrade a Cisco ASA license, I received a few messages asking about upgrading the Cisco ASA software.Fortunately, just like upgrading IOS on a Cisco router, it’s an easy, straightforward process that you can knock out in a few minutes. In order to upgrade the software, you’re going to actually acquire the software.

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