Firmware upgrade an Active/Passive Pair of Firewalls
I have several sets of firewalls running active/standby that I want to upgrade from 8.0.5 to 8.2.2. According to the cisco docs to do this without downtime (which as they are running live web services is required) I need to go from the 8.0.x release to 8.1.x and then onto 8.2.x.
All well and good but there aren't any 8.1.x images available to download.
So can I go from 8.0 to 8.2 without downtime in between the upgrades? Or if not have you any suggestions on how I can do this.
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...