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Install Sophos XG or UTM on a Cisco ASA 5545-x

Patrick R

Hi all,

Maybe this blasphemy  but I got my hands on a Cisco ASA 5545-X (8core 12GB RAM) which would be a perfect candidate to install Sophos on. Basically it is still "a server" on which you can install stuff.

Yes, I know I can use the ASA as a firewall but you need a bit (understatement) more understanding of Cisco appliances to configure that one and I am knowledgeable with Sophos UTM/XG appliances so I prefer to install Sophos on it. Besides, I don't even have licenses to run FirePower on the ASA anyway.

Is there anyone here that has experience with this how to do that or is it technically not even possible to run a different OS on a Cisco ASA?

Patrick



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  • 0 in reply to Brumsterino

    Hi Brumsterino,

    No after a week of trying, together with my Cisco specialist colleague, we gave up on the project. Just inserting the new disk and change storage device didn't do the trick. We also ran into the issue that the Cisco seems to be only able to address bin files. So we had to fumble around with SFOS to get the correct bin working.

    Eventually another colleague showed up with a UTM 320, so I decided to continue working with that.

    It is a shame we didn't get it working with the ASA as the hardware is pretty impressive to let a SFOS running on, but maybe someone else has got more luck. Or it is simply not possible because of the limitations of the CISCO BIOS.