When a packet arrives the asa it checks the acl assigned to the interface where the traffic hits..... then it goes and check the xlate table.... then it checks the service policy defined in your firewall...... obviously it will check both the global and locally defined service policies on the interface..... in general global policies will have the inspect statement to enable fast path for certain protocols which doesn't have reverse path or stateful way.... so those are required to be inspected to enable fast path..... so both the service policies will be handled seperately but on the same process sequence..... before it goes out....
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...