I'm just installing ACS 5.1 for the first time and came across the tech dumptcp 'feature'.
This command seems to be almost completely useless for capturing packets at the ACS 5.1 OS!
It's not possible to specify a filter or capture the packets to disk. The only options that exist are the ability to specify the number of packets that are dumped to the console which rather limits its usefulness, especially if you're SSHed in to ACS 5.1 in the first place.
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...