What are you using for an IPS, an appliance? an IOS IPS in the Internet router or the ASA?
If you want to feed the output of your IPS into the same switch as the input, you'll need to create two separate VLANS, one for the switch interfaces that are outside your IPS and the other for the interfaces that are inside your IPS.
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...
[toc:faq]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 and UDP are I...