Could you confirm me that when an input acl is enabled together with IPSec on the same inbound interface the acl is checked twice before and after decryption ?
I would enable a filter that allows only encrypted packet but if acl is checked twice I need to add also end-to-end IP Packet. Well in this last case every one also not encrypted source could try to get in (DoS).
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...