AFAIK TAC does not support Database Migration. You might get some help from your Cisco SE however you cannot directly upgrade the ACS 3.3 database to ACS 5.x, you would need to upgrade the ACS 3.3 database to ACS 4 and then migrate the database to ACS 5.
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...