we are incrementally receiving a lot of MARS events that comes from Cisco IDS, all those events are â NULL TCP PACKETâ, and the destination is always the same, a smtp ironport machine trough the 25 port, from diferent public IPs.
Does anybody have a similar scenario? What can we do?
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...