Basically this is commonly used for allowing access to the REAL IP addresses of your inside devices from a lower security level interface (i.e DMZ) . You need this type of configuration when traffic is initiated from lower to higher interface and you need to connect to the REAL IP address of the destination hosts .. if you don't configure this static you will not be able to connect to the real IP addresses of the hosts behind the lower 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...