if you add a deny icmp statement to the access-list, it will be placed at the end and will never be reached, if there is a permit statement eariler in the list then a match will be found before the end statement.
enter 'no acl_outside permit icmp any any'
or match whatever the statement is that is allowing the ping - place 'no' infront.
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...