I am just learning the details of the IDSM, but AFAIK, on your questions:
1. The IDSM will monitor what you tell it, and it can reach/see, in the 6500. I believe you can have multiple virtual sensors, by doing multiple vlans/interfaces. If there are more networks to be monitored than the IDSM can reach/see, then you might need another IPS of some sort (perhaps another IDSM in the switch).
2. I believe the default is NOT inline.
HTH. Anyone more expert than I (many of you...;^) please correct me if I'm wrong.
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...