More on this some other time, I just want you to know about this.Now both appliances have the same code and we make them a failover cluster, according to this blog post. And it won’t break any existing sessions, as the previous upgrade example would, because of the reboot.My configuration has some ACLs and some NAT statements, among other things.
We have to know this compatibilities, because trying to upgrade 5520 from 8.2 to 8.7 would be a horrible idea. What I mean by this is that if you go for an upgrade from 7.2 to 9.1 it work.
Real IP migration logs: No ACL was changed as part of Real-ip migration INFO: MIGRATION – Saving the startup errors to file ‘flash:upgrade_startup_errors_201308160855.log’atest1# atest1# wr t : Saved : ASA Version 8.3(1) !
interface Ethernet0/3 shutdown no nameif no security-level no ip address !
hostname atest1 enable password someencryptedpassword encrypted passwd somepasswordalsoencrypted encrypted names !
interface Ethernet0/0 nameif outside security-level 0 ip address 188.8.131.52 255.255.255.0 !