First you need to fine tune your IDS/IPS. then ig you still have too many events showing off you need to use something like Cisco Monitoring and Response System, which would reduce the incidents you see.
We have spent years refining best practices for various customers that we manage. I can say from hard won experience that there is no magic bullet here and that data diving, sifting results, knowing your network all play vital roles in tuning your sensor(s). It is something that occurs daily due to copious amounts of time performing in depth investigations.
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...