I have seen that starting with sw version 8.0 it is possible to configure NAT with a firewall in transparent mode.
I have an scenario where the upstream router (internet gateway) is performing NAT. Due to this reason sometimes the router processing rises over 90% and starts refusing connections of my users. The firewall is placed between the router and the Core LAN Switch and I have to used in transparent mode (long history). The question is: Have anybody used this feature in transparent mode? Does it work just like in routed mode? that means using PAT whenever the IP address from the pool are exhausted?
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...