I haven't seen anything that would allow you to configure a 'standby' IDS. Perhaps someone from Cisco could enlighten us as to whether a feature like that is coming down the pipes? I know I have a hard time just selling one IDS let alone redundant ones :)
You could however simply mirror the port that you wanted to monitor to two different ports, plugging a sensor into each of those ports that are being mirrored. You'd configure the management interface of the sensor with separate IP addresses.
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...