Okay, you won't be able to do this on the ASA. You'll need to filter results on source and destination on your syslog server. The ASA will log every hit from the logging level that you specify and below. You wouldn't, say, be able to create an ACL to log only hits that match it (although this would be nice).
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...