I have installed and configured a ASA firewall and perimeter router for a business. How can I test to make sure that there are no vulnerabilities? On the ASA, I understand an out going message from inside the firewall leaves a port opened and that port closes in 2 minutes by default if there has not been a return message. How can I test if a port has been permanently opened? Any suggestions would be appreciated.
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...