Guillaume, if you do not have smartnet obiously you will not have access to software downloads to try downloading a new fresh image as previous poster suggested, however, I do not believe codes all of the sudden get corrupted unless there is a software bug that could have cause hardware problems. If you do not have smartnet services you may still contact Cisco TAC services to see what options you have, perhaps they may allow software download or provide you with other reasonable options.
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...