I've been told that the "Sudden Increase in traffic to a port" means that MARS has seen a situation where the traffic to a port is more than 2 standard deviations from its normal traffic rate.
In the normal course of its operations, MARS develops a baseline of the network using Netflow. Consequently it's perfectly normal for there to be moments where you have spikes in traffic which would trigger this sort of event. It's then up to the administrator to determine if this is a false positive or not.
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...