We had a mars appliance installed by a contractor last year. I am only now starting to look at it after spending most of the time between then and now with CSA and NAC. The version number is 4.2.3. i have noticed that one or two patches have been released from when this box was configured. Do i need to install every patch one by one? Also, am i ok to put 4.3.x as this is still version 4.
If the data/configs on your MARS box are not important to you, you can re-image the box to the latest version (directly). This is usually not the case. Unless you have to install each minor upgrade separately.
The contractor was not very good actually. I ended up teaching him how to install CSA after reading lots of books and manuals and his NAC implementation wasnt designed properly. More fun for me though!
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...