Your understanding is correct and it's commonly termed "inbound" traffic. That is, traffic sourced from lower security arriving to a higher security level. The "outbound" traffic would just be the reverse
For the example given, it means that any traffic from outside (usually Internet traffic), with source TCP port 443/HTTPS, will be allowed to communicate to the object pool/alias that was defined.
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...