Heres the breakdown. d=Dump, clean up connection. f=FIN seen in inbound packet. F=FIN seen in outbound packet. H=HTTP get in a UDP connection, H can also mean H.323. I Data in. J=Java applets are not permitted on connection. m=SMTP data. O=Data out. q= SQL*Net data fixup. R=Remote Procedure Call (RPC). r=In use. U=Connection is up. I think some other flags may show up but they are specifically for Cisco engineering if requested during trouble-shooting.
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...