topic Upgrading ASA microcode in Network Security

Upgrading ASA microcode

billmatthews — Mon, 11 Mar 2019 21:39:31 GMT

A customer told me that Cisco recommended they upgrade the "microcode" on their ASA5520. This isn't my support problem, so I'm just curious. I'm familiar with upgrading the software on the ASA. But what is the microcode, and when/how might you need to upgrade it?

Thanks

Upgrading ASA microcode

Jennifer Halim — Wed, 19 Oct 2011 02:23:00 GMT

Any specific reason why your customer told you Cisco has recommended they upgrade the microcode on their ASA, and do they have any reference to any Cisco TAC ticket?

I haven't personally seen any microcode upgrade being performed but typically it is just a software upgrade to the ASA that will provide more features to the microcode.

Upgrading ASA microcode

billmatthews — Wed, 19 Oct 2011 02:39:29 GMT

I think it was related to a hardware issue. But I was just wondering in general about the microcode out of curiosity.

So it's like a firmware, and generally updated automatically as you upgrade the ASA software? It's not a separate process?

Upgrading ASA microcode

Jennifer Halim — Wed, 19 Oct 2011 02:41:50 GMT

Absolutely correct.

Upgrading ASA microcode

billmatthews — Wed, 19 Oct 2011 02:50:25 GMT

Thanks!