The Cisco IPS sensors will pass Spanning Tree Protocol BPDUs. So, if you have STP enabled on yoru switch(s) you shouldn;t be creating any loops. You should be careful however that you don;t let STP block the port feeding traffic to your IPS sensor. You can see this if you start seeing traffic only in one direction on your sensor. (then check your switch with a "show spanning-tree vlan X" to see what paths you have to the root switch and which paths are blocked (BLK).
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...