Now my question - I am upgrading from 8.0(2) to 8.2.1(11). There is no version 8.1 for my ASA model 5510. Will I still be able to do a zero downtime upgrade? If so, will I be able to upgrade directly from 8.0(2) to 8.2.1(11) or do I need to upgrade something like this:
8.0(2) -> 8.0(5)
8.0(5) -> 8.2.1ED
8.2.1ED -> 8.2.1(11)
That is a lot of software upgrades and, if possible, I would like to do this directly and reduce risk.
To ensure that your configuration updates correctly, you must upgrade to each major release in turn. Therefore, to upgrade from Version 7.0 to Version 8.2, first upgrade from 7.0 to 7.1, then from 7.1 to 7.2, and finally from Version 7.2 to Version 8.2 (8.1 was only available on the ASA 5580).
So you can go from 7.2 to 8.2 and there is no mention of 8.0.2, 8.0.4 or 8.0.5
You should be able to do zero downtime upgrade as well.
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...