I do not know if you are experiencing the same situation as I had, but....
I too am running IDSMC 1.2. Among my various cisco sensors, I also have some 4210's. I am unable to upgrade the 4210's from 4.0(2)S42 to the 4.1X SP. TAC has told me that the 256MB that the 4210's shipped with is insufficient to apply the service pack. The upgrade tool has a free 256MB upgrade for all 4210's under SMARTnet coverage.
Like I said, appliances and modules are apples and oranges, but if this info doesn't help you it may help someone else.
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...