This is not supported and can cause some database corruption issues since the upgrade clearly states that the services must be stopped while running the upgrade scripts. Not to mention two active CAM (if in failover) which can cause stability issues with duplicate IPs.
As always the CAS' need reachability to the CAM for them to stay operational, if the CAM goes down then the CAS becomes worthless.
If you are interested in looking at ISE please reach out to me and I can help build a migration path since you are entitled to some credits and discounts for licensing.
I worked in tac supporting the nac product line. If you have any reservations please dig into the cisco documentation proving otherwise. That comment didnt come off well, and do not how it was intended to provide any support to this overall thread and the cisco customer.
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...