What is the best way to do the upgrade from 6.3(5) to 8.0(4)? The way I am reading it I am supposed to upgrade to 7.2 first and then upgrade to 8. Also, I need to do everything in monitor mode since I have PDM installed on the boxes correct? I did the same upgrade to 8.0(3) about 9 months ago for a different set of Pixes and for the life of me I don't think I ever upgraded to any 7 code and went straight to 8 and everything worked fine. Also, since the boxes are an active/standby pair I believe I need to just power down the FO unit, do the upgrade and test to make sure the Primary unit is fine, power down the primary, upgrade the FO.
Upgrading from 6.3 to anything is a big change by itself since the config gets converted and the flash gets reformatted. I don't remember reading that going from 6.3 to 8 is a valid upgrade path so I'd stick to the documentation:
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...