Update firmware Cisco ASA 5505, 3560, 2960.

[phugiay]

Hi there, 

I have 3 Cisco ASA 5505, 2560, 2960 and I want to update the firmware from version 9 to 15. 

1. Do you I need a license for the update or download the software? 

2. Can I update straight from version 9 - to 15 or I have to go 9-> 10-> 11-> .....-> 15? like Palo Alto Network firewall PA? 

Thank you

https://www.cisco.com/c/en/us/support/docs/smb/switches/cisco-550x-series-stackable-managed-switches/smb5566-upgrade-firmware-on-a-switch-through-the-command-line-interf.html

[balaji.bandi]

ASA - is Firewall - what is the full model to guide you correct version - if this old 5505 that was end of life

Switches / Routers - that is different IOS code, again you need to provide the full model and what IOS code running on it now.

some are can be directly upgrade to target version, some required step approach, some need ROMMON upgrade, this all mentioned clearly each release notes and how to upgade.