You have to use the management interface for the IPS. You may also simultaneously use the management interface for the ASA. However, you will need an external router, as the interface has to be set for management-only for the IPS, which prevents passing traffic through the firewall to it directly. E.g. the management interface for the ASA could be 192.168.10.10/24 and the IPS could be configured with 192.168.10.11/24. The default router for 192.168.10.0/24 would have to be some other device.
Due to lack of routers in my environment, I'm managing my ASA devices through non-management interfaces, and having the IPS address share a subnet with a different ASA interface.
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...