Upgrade FWSM 2.3 to 4.0

[kpsung1968]

Dear All,

I am having difficulty looking information regarding upgrade of FWSM. Currently, we have ver 2.3, can I upgrade direct to 4.0 or do I need to upgrade ti 3.0 first? Same for PDM. Can I upgrade to 6.0 direct?

[a-vazquez]

You have to upgrade FWSM to 3.x version before upgrading to 4.x version.

http://www.cisco.com/en/US/docs/security/fwsm/fwsm31/upgrade/guide/fwsm31up.html#wp1972136