I am currently using two IPS 4255 and 4260 with 7.1.7 E4 patch as far as my knowledge that IPS only study plain text while it will not sniff the encrypted data. I study today in the Network IPS Evasion Techniques the attacker use these techniques to by pass the IPS sensor.
1- Do educate me what is method to use Cisco IPS Anti-Evasion Features in my current sensor to defend my LAN network from attacker?
2- Is updated signature is enough to defend these envasion method?
3- Or is there any other method to enable the feature in the above mentioned IPS what are these?
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...